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Conidia Stock Photos and Images
RMRFCBMJ–. Recent research on foliage diseases : conference proceedings : Carlisle, Pennsylvania, May 29-June 2, 1989. Leaves Diseases and pests United States Congresses. Figure 1.—Dse?:cs:rJ. A. Cordddorriua of die fungus or. an Ausrim pine needle. B. Coniddorraia or. a Jeffrey pine needle. C. Aeervulus with conidia. D. Conidia. E. Ascostromata of fungus on an Austrian pine needle. F. Verrleil section of ascostromata. G. An ascostroma with wo locules rapturing the host epidermis. FL Ascospor^s. Thyr and Shaw (17), on the basis of conidial length, described rwo variedes c: die fences. D. r:v.: var. .
![. Plant studies; an elementary botany. Botany. 376 I'LANT .STUDIES large one, and contains a great variety of forms. All of them, however, produce sjiores in asci, but the asci arc not always inclosed by an a8C0(;arp. Here belong the common blue mould {l')ii(illiiim.) found on bread, fruit, etc., in which stage the branching chains of conidia are very con- spicuous (Fig. 243) ; the truffle-fungi, upon whose subter-. 1. showing' tiraiiu i-M,nean mycelia a.scoca,rps dcvt'li)}) wliirli a,rc known as "truffles"; tlic l)liicl fungi, wliicli form the diseases kiKiwii as " bla(/k kno Stock Photo](https://c8.alamy.com/comp/RDHGAK/plant-studies-an-elementary-botany-botany-376-ilant-studies-large-one-and-contains-a-great-variety-of-forms-all-of-them-however-produce-sjiores-in-asci-but-the-asci-arc-not-always-inclosed-by-an-a8c0arp-here-belong-the-common-blue-mould-liiilliiim-found-on-bread-fruit-etc-in-which-stage-the-branching-chains-of-conidia-are-very-con-spicuous-fig-243-the-truffle-fungi-upon-whose-subter-1-showing-tiraiiu-i-mnean-mycelia-ascocarps-dcvtli-wliirli-arc-known-as-quottrufflesquot-tlic-lliicl-fungi-wliicli-form-the-diseases-kikiwii-as-quot-blak-kno-RDHGAK.jpg ". Plant studies; an elementary botany. Botany. 376 I'LANT .STUDIES large one, and contains a great variety of forms. All of them, however, produce sjiores in asci, but the asci arc not always inclosed by an a8C0(;arp. Here belong the common blue mould {l')ii(illiiim.) found on bread, fruit, etc., in which stage the branching chains of conidia are very con- spicuous (Fig. 243) ; the truffle-fungi, upon whose subter-. 1. showing' tiraiiu i-M,nean mycelia a.scoca,rps dcvt'li)}) wliirli a,rc known as "truffles"; tlic l)liicl fungi, wliicli form the diseases kiKiwii as " bla(/k kno Stock Photo")
RMRDHGAK–. Plant studies; an elementary botany. Botany. 376 I'LANT .STUDIES large one, and contains a great variety of forms. All of them, however, produce sjiores in asci, but the asci arc not always inclosed by an a8C0(;arp. Here belong the common blue mould {l')ii(illiiim.) found on bread, fruit, etc., in which stage the branching chains of conidia are very con- spicuous (Fig. 243) ; the truffle-fungi, upon whose subter-. 1. showing' tiraiiu i-M,nean mycelia a.scoca,rps dcvt'li)}) wliirli a,rc known as "truffles"; tlic l)liicl fungi, wliicli form the diseases kiKiwii as " bla(/k kno
RMRDE6D7–. The fungi which cause plant disease . Plant diseases; Fungi. THE FUNGI WHICH CAUSE PLANT DISEASE 159. spreading the fungus during the summer though they have not yet actually been observed to germinate or to cause infection. Apothecia radiately arranged on the stroma which is about 0.5-1.5 cm. across; asci 120-130 X 9-10 ix; spores large, 65-80 Tt 1.5-3 m; paraphyses numerous, in- curved or hooked. Conidia (=Melasmia acerina Lev.) preceding the asci, producing numerous small, hyaline, 1-celled spores in an extended hy- menial layer. On various species of Fig. maple, apparently consist- ing o
RMRGWD7C–. Bulletin. Natural history; Natural history. Jur 1941 CARTER: OAK DISEASES IN ILLINOIS 213 black, globoid to slightly ovoid, ostiolate, and 150-200 ji in diameter. The conidia are hyaline, ,?-,?.5 X 1-2.5 ju, oblong to fiisoid, and continuous. From one of the two twig cankers, Plioma was obtained in culture; Cephalo- sporium was obtained from the other. Dothiorella was obtained from the trunk canker and from one branch canker; Peni- cilliuni and Cephalosporiuin were obtained from the other branch canker. The Phomii from the twig canker, cultured on corn meal agar, produced black, globose pyc-
![. The fungi which cause plant disease . Plant diseases; Fungi. 502 THE FUNGI WHICH CAUSE PLANT DISEASE About two hundred species several of them important plant pathogens. S. malorum Pk.«°' "â ""'^ Mycelium sooty-brown; pycnidia erumpent, usually surrounded by broken epidermis, apically somewhat depressed; conidia oblong elliptic, broAvn, usually about twice as long as broad, 22-32 x 10-14 H, varying in size with host and part attacked. On apple, pear, quince, hawthorn; on twigs causing canker or blight; on fruit causing rot and on leaves causing spots.. iiu. 34S.âS. malorum, Stock Photo](https://c8.alamy.com/comp/RDE5BA/the-fungi-which-cause-plant-disease-plant-diseases-fungi-502-the-fungi-which-cause-plant-disease-about-two-hundred-species-several-of-them-important-plant-pathogens-s-malorum-pk-quot-quotquot-mycelium-sooty-brown-pycnidia-erumpent-usually-surrounded-by-broken-epidermis-apically-somewhat-depressed-conidia-oblong-elliptic-broavn-usually-about-twice-as-long-as-broad-22-32-x-10-14-h-varying-in-size-with-host-and-part-attacked-on-apple-pear-quince-hawthorn-on-twigs-causing-canker-or-blight-on-fruit-causing-rot-and-on-leaves-causing-spots-iiu-34ss-malorum-RDE5BA.jpg ". The fungi which cause plant disease . Plant diseases; Fungi. 502 THE FUNGI WHICH CAUSE PLANT DISEASE About two hundred species several of them important plant pathogens. S. malorum Pk.«°' "â ""'^ Mycelium sooty-brown; pycnidia erumpent, usually surrounded by broken epidermis, apically somewhat depressed; conidia oblong elliptic, broAvn, usually about twice as long as broad, 22-32 x 10-14 H, varying in size with host and part attacked. On apple, pear, quince, hawthorn; on twigs causing canker or blight; on fruit causing rot and on leaves causing spots.. iiu. 34S.âS. malorum, Stock Photo")
RMRDE5BA–. The fungi which cause plant disease . Plant diseases; Fungi. 502 THE FUNGI WHICH CAUSE PLANT DISEASE About two hundred species several of them important plant pathogens. S. malorum Pk.«°' "â ""'^ Mycelium sooty-brown; pycnidia erumpent, usually surrounded by broken epidermis, apically somewhat depressed; conidia oblong elliptic, broAvn, usually about twice as long as broad, 22-32 x 10-14 H, varying in size with host and part attacked. On apple, pear, quince, hawthorn; on twigs causing canker or blight; on fruit causing rot and on leaves causing spots.. iiu. 34S.âS. malorum,
RMRH33YB–. British fungi (hymenomycetes). Basidiomycetes; Fungi -- Great Britain. C. Guepinia helvelloides. One- half natural size. , a fungus). Dacrymyces. GENUS LXIII. — Dacrymyces (SOK/W, a tear; Nees Syst. p. 89. Gelatinous, homogeneous, pervaded internally with septate fibres; conidia linked together like a necklace ; sporophores clavate at the end of the filaments, bifurcate when mature ; spores septate. Tul. Ann. Sc. Nat. 1853, /. n. f. 19. /. 1 2. Fr. Hym. Eur. p. 697. * Red. ** Yellowish. *** Pa Hid o r fusco us. * Red. 1. D. macrosporus B. £ Br. — Rose-colour, gelatinous, tubcrculated. Formin
![. The fungi which cause plant disease . Plant diseases; Fungi. 322 THE FUNGI WHICH CAUSE PLANT DISEASE E. australe Speg. Son foliar, forming spots, yellowish to eventually dark, usually 0.5-6 mm. in length; spores light to reddish-yellow, ovoid to spherical or slightly angled, chiefly 10-16 n in length; conidia Unear, somewhat curved, usually 30-55 x 1-2 ii. Common and destructive on many species of Physalis and on Solanum, especially on some of the cultivated forms throughout the Americas and in Africa. E. fuscum Schr."^ Sori in.leaves, about 2-6 mm. or by confluence much larger, spores Stock Photo](https://c8.alamy.com/comp/RDE66C/the-fungi-which-cause-plant-disease-plant-diseases-fungi-322-the-fungi-which-cause-plant-disease-e-australe-speg-son-foliar-forming-spots-yellowish-to-eventually-dark-usually-05-6-mm-in-length-spores-light-to-reddish-yellow-ovoid-to-spherical-or-slightly-angled-chiefly-10-16-n-in-length-conidia-unear-somewhat-curved-usually-30-55-x-1-2-ii-common-and-destructive-on-many-species-of-physalis-and-on-solanum-especially-on-some-of-the-cultivated-forms-throughout-the-americas-and-in-africa-e-fuscum-schrquot-sori-inleaves-about-2-6-mm-or-by-confluence-much-larger-spores-RDE66C.jpg ". The fungi which cause plant disease . Plant diseases; Fungi. 322 THE FUNGI WHICH CAUSE PLANT DISEASE E. australe Speg. Son foliar, forming spots, yellowish to eventually dark, usually 0.5-6 mm. in length; spores light to reddish-yellow, ovoid to spherical or slightly angled, chiefly 10-16 n in length; conidia Unear, somewhat curved, usually 30-55 x 1-2 ii. Common and destructive on many species of Physalis and on Solanum, especially on some of the cultivated forms throughout the Americas and in Africa. E. fuscum Schr."^ Sori in.leaves, about 2-6 mm. or by confluence much larger, spores Stock Photo")
RMRDE66C–. The fungi which cause plant disease . Plant diseases; Fungi. 322 THE FUNGI WHICH CAUSE PLANT DISEASE E. australe Speg. Son foliar, forming spots, yellowish to eventually dark, usually 0.5-6 mm. in length; spores light to reddish-yellow, ovoid to spherical or slightly angled, chiefly 10-16 n in length; conidia Unear, somewhat curved, usually 30-55 x 1-2 ii. Common and destructive on many species of Physalis and on Solanum, especially on some of the cultivated forms throughout the Americas and in Africa. E. fuscum Schr."^ Sori in.leaves, about 2-6 mm. or by confluence much larger, spores
![. The fungi which cause plant disease . Plant diseases; Fungi. Fia. 439.—Fusarium on corn. After Burrill and Bar- rett. Fig. 440.—F. vasinfectum. A. Macro- conidia. B. Portion of a hypha. C. A germinating macroconidium. After Reed. moniliform, 6-10 n long; macroconidia falcate, acute, usually 3-septate, 25-40 ix long. It causes molding of com.*™ Several other undetermined species have been isolated from com on which they occur as the cause of dry rot of the grain."" A fusarium on banana is by Essed referred to Ustilaginoidella. See p. 214. F. vasinfectum Atk.^*""'*' Hyphse Stock Photo](https://c8.alamy.com/comp/RDE4TR/the-fungi-which-cause-plant-disease-plant-diseases-fungi-fia-439fusarium-on-corn-after-burrill-and-bar-rett-fig-440f-vasinfectum-a-macro-conidia-b-portion-of-a-hypha-c-a-germinating-macroconidium-after-reed-moniliform-6-10-n-long-macroconidia-falcate-acute-usually-3-septate-25-40-ix-long-it-causes-molding-of-com-several-other-undetermined-species-have-been-isolated-from-com-on-which-they-occur-as-the-cause-of-dry-rot-of-the-grainquotquot-a-fusarium-on-banana-is-by-essed-referred-to-ustilaginoidella-see-p-214-f-vasinfectum-atkquotquot-hyphse-RDE4TR.jpg ". The fungi which cause plant disease . Plant diseases; Fungi. Fia. 439.—Fusarium on corn. After Burrill and Bar- rett. Fig. 440.—F. vasinfectum. A. Macro- conidia. B. Portion of a hypha. C. A germinating macroconidium. After Reed. moniliform, 6-10 n long; macroconidia falcate, acute, usually 3-septate, 25-40 ix long. It causes molding of com.*™ Several other undetermined species have been isolated from com on which they occur as the cause of dry rot of the grain."" A fusarium on banana is by Essed referred to Ustilaginoidella. See p. 214. F. vasinfectum Atk.^*""'*' Hyphse Stock Photo")
RMRDE4TR–. The fungi which cause plant disease . Plant diseases; Fungi. Fia. 439.—Fusarium on corn. After Burrill and Bar- rett. Fig. 440.—F. vasinfectum. A. Macro- conidia. B. Portion of a hypha. C. A germinating macroconidium. After Reed. moniliform, 6-10 n long; macroconidia falcate, acute, usually 3-septate, 25-40 ix long. It causes molding of com.*™ Several other undetermined species have been isolated from com on which they occur as the cause of dry rot of the grain."" A fusarium on banana is by Essed referred to Ustilaginoidella. See p. 214. F. vasinfectum Atk.^*""'*' Hyphse
RMRGWD3K–. Bulletin. Natural history; Natural history. 218 ILLINOIS NATURAL HISTORY SURVEY BULLETIN Vol. 21, Art. 6 brown mycelium, fig. ii. The mycelium is white when young but becomes tan to brown with age. A dense growth of sur- face hyphae and a very sparse growth of aerial livpbae develop in culture. Pycnidia develop as partially submerged, dark brown to black, pseudoparenchyma- V c 0 0 # 9 9 • % Fig. 34.—Spores of Coniolhyrium. They are ovoid to subcylindric, olivaceous and 1- celled. X 430. tous, spheroidal structures with flattened bases; they are 150-500 /x in diameter. The conidia, Hg. 34, ar
RMRDE0CG–. Diseases of truck crops and their control . Vegetables. Fig. 48. Diseases of Lima Bean. a. h. c. different stages of downy mildew on pods, d. tuft of conidiophores and conidia of Phythophthora phaseoli, e. same as d. but greatly enlarged, /. g. conidia germinating by means of a germ tube, h. i. j. k. germination of conidia by means of zoospores, /. germinating zoospores (d. to I. after Thaxter), m. «. fertilization of the oogonium by the anthendium, o. Phoma blight on foliage, p. Phoma blight on pods {0. and p. after Halsted), r. mature oospores of P. phaseoli (o. to c, m. n. and r. after Cl
RMRFPWCN–. Some diseases of Puerto Rican forage crops. Forage plants Diseases and pests Puerto Rico. They are roughened when mature. The conidia are similar in shape to those shown in figure 7, B. They. Figure 11.—Ergot on Paspalum ylicatulu m (brownseed paspalum) caused by Clavi- ceps paspali. X 3. are 5/x x 15/x in size. The oval perithecia completely cover the stromatic head. They are 340/x x 119/x in size. The asci are cylin- drical and are 174^ long. The ascospores are filiform. Their meas- urements are 101m x 0.5-1^ {S3). The exudate of the sphacelial stage is high in carbohydrate and other fungi
RMRGWD57–. Bulletin. Natural history; Natural history. h 1941 CARTER: OAK DISEASES IN ILLINOIS 217 cular shields around the erunipent p c- iildia. The conidia, shown in the cross section of a pycnidiiim in fig. 31, are brown, 15-25 X 8-11 /i, continuous, and o(iid to ellipsoid. The conidiophores are hyaline, rodlike, 6-9 X 1.5-2.5 jx, and the oval ostioles are 15—25 ix in diameter. This fungus was not grown in culture. Our material compares closely with the morphological description of SplKierofisis queriiiiuni Cke. .^' Harkn. (Cooke ^' llarkness 1884). Bulgaria Canker Apothecia were obtained from Bu
![. The fungi which cause plant disease . Plant diseases; Fungi. 238 THE FUNGI WHICH CAUSE PLANT DISEASE Over one hundred thirty species are known. Some are impor- tant parasites. Conidial forms are found in Phoma and Phyllosticta. G. bidwellii (E.) V. & R.^- ^*^"^ Perithecia minute, globose, subepidermal, erumpent, perforate; asci clavate-cylindric, obtuse, 60-70 x 10-13 fi; spores elliptic to oblong, continuous, 12-17 x 43^-5 fi. Conidia (=Phoma uvicola, Phyllosticta labruscae, Naemospora ampeUcida) borne in pycnidia 180 x 180 fi, subepidermal, elliptic,. Fig. 173.—Diagrammatic sectio Stock Photo](https://c8.alamy.com/comp/RDDBAC/the-fungi-which-cause-plant-disease-plant-diseases-fungi-238-the-fungi-which-cause-plant-disease-over-one-hundred-thirty-species-are-known-some-are-impor-tant-parasites-conidial-forms-are-found-in-phoma-and-phyllosticta-g-bidwellii-e-v-amp-r-quot-perithecia-minute-globose-subepidermal-erumpent-perforate-asci-clavate-cylindric-obtuse-60-70-x-10-13-fi-spores-elliptic-to-oblong-continuous-12-17-x-43-5-fi-conidia-=phoma-uvicola-phyllosticta-labruscae-naemospora-ampeucida-borne-in-pycnidia-180-x-180-fi-subepidermal-elliptic-fig-173diagrammatic-sectio-RDDBAC.jpg ". The fungi which cause plant disease . Plant diseases; Fungi. 238 THE FUNGI WHICH CAUSE PLANT DISEASE Over one hundred thirty species are known. Some are impor- tant parasites. Conidial forms are found in Phoma and Phyllosticta. G. bidwellii (E.) V. & R.^- ^*^"^ Perithecia minute, globose, subepidermal, erumpent, perforate; asci clavate-cylindric, obtuse, 60-70 x 10-13 fi; spores elliptic to oblong, continuous, 12-17 x 43^-5 fi. Conidia (=Phoma uvicola, Phyllosticta labruscae, Naemospora ampeUcida) borne in pycnidia 180 x 180 fi, subepidermal, elliptic,. Fig. 173.—Diagrammatic sectio Stock Photo")
RMRDDBAC–. The fungi which cause plant disease . Plant diseases; Fungi. 238 THE FUNGI WHICH CAUSE PLANT DISEASE Over one hundred thirty species are known. Some are impor- tant parasites. Conidial forms are found in Phoma and Phyllosticta. G. bidwellii (E.) V. & R.^- ^*^"^ Perithecia minute, globose, subepidermal, erumpent, perforate; asci clavate-cylindric, obtuse, 60-70 x 10-13 fi; spores elliptic to oblong, continuous, 12-17 x 43^-5 fi. Conidia (=Phoma uvicola, Phyllosticta labruscae, Naemospora ampeUcida) borne in pycnidia 180 x 180 fi, subepidermal, elliptic,. Fig. 173.—Diagrammatic sectio
RMRT0GHC–. Bulletin of the British Museum (Natural History). Botany; Botany. 34 D. L. HAWKSWORTH B. lOjLim Fig. 18 Lichenoconium species, conidiogenous cells and conidia. A, L. echinosporum (UPS—holotype). B, L. erodens (herb. Christiansen—holotype). C, L. cargillianum (E—holotype). D, L. lichenicola (H-KARST 1246—holotype). E, L. lecanorae (IMI 192264). F, I. pyxidatae (L—holotype). G, L. usneae (K—isotype). H, L. xanthoriae (C—holotype). Reproduced from Hawksworth (1977 : 162, 164).. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readabi
RMRDE5CD–. The fungi which cause plant disease . Plant diseases; Fungi. 496 THE FUNGT WHICH CAUSE PLANT DISEASE Asteroma De Candolle (p. 482) Pycnidia very small, globose, erumpent, often on a mass of hyphae; conidia ovate or short cylindric. In part =Gnomonia. See p' 274. About forty species chiefly parasitic. A. padi (D. C.) Grev. on Prunus=Gnomonia padicola. See p. 275. A. geographicum (D. C.) Desm. occurs on various species of Pomaceae; A. punctiforme Berk, on the rose; A. stuhlmanni Hen. on bananas and pineapples in Africa. A. codisei All. is said to be a serious parasite of Codiseum.^^ Vermicular
RMRGJHCD–. Bulletin of the British Museum (Natural History). Botany; Botany. LICHENICOLOUS COELOMYCETES 47 L2< J t. Fig. 22 Nigropuncta rugulosa (IMI 241409—holotype). A, Infected areolae (x 30). B, Infected areolae showing the emergent conidial masses (x 80). C, Vertical section of pycnidium (lower part) to show the pycnidial wall and conidiogenous cells (x 1020). D, Conidia (x 1020). 3-4 jum latae, Conidia catenata, in cirrhum accumulata, irregulariter, e cellulis numerosis composita, plerumque 20-40 //m diam, atro-olivacea vel nigra, cellulis subglobosis vel angularibus, plerumque simplicibus, ru
RMREF5HX–. Comparative morphology of Fungi. Fungi. Fig. 401.—Neovossia Moliniae. 1. Tuft of hyphae with filamentous conidia. 2. Fila- mentous conidia germinating to falcate conidia. 3. Young smut spores. 4, 5. Germina- tion of smut spores. (1, 2 X 270; 3 X 330; 4, 5 X 240; after Brefeld, 1895.) develop to very slender mycelia which, in case the germination occurs in water, pour out their content into falcate conidia or, if the germination. Fig. 402.— Tuburcinia Ranunculi. 1 to 3. Development of a spore ball with fertile and sterile cells. 5 to 9. Germination of smut spores. Tuburcinia Violae. 10. Binuc
![. Bulletin of the British Museum (Natural History). Botany; Botany. 64 D. L. HAWKSWORTH. Fig. 32 Pyrenotrichum staurosporum (IMI 4440d). A, Conidiogenous cells and developing conidia. B, Conidia. Specimens: Ghana: Aburi, on Landolphia owariensis, 24 May 1949, S. J. Hughes 791 (IMI 4440d).—Malaysia: Cameron Highlands, on Lasioloma arachnoideum on Xanthophvllum affina, 6 September 1953, W. J. Cherwick [A. Johnston no. 1113] (IMI 54915/-;?!). XIX. VOUAUXIELLA Petrak & H. Sydow Beik Repert. now Spec. Regni vegAl: 482 (1927). Alysia Cavalc. & Silva, Publcoes Inst. Micol. Recife 647 : 32 ( Stock Photo](https://c8.alamy.com/comp/RGJH3H/bulletin-of-the-british-museum-natural-history-botany-botany-64-d-l-hawksworth-fig-32-pyrenotrichum-staurosporum-imi-4440d-a-conidiogenous-cells-and-developing-conidia-b-conidia-specimens-ghana-aburi-on-landolphia-owariensis-24-may-1949-s-j-hughes-791-imi-4440dmalaysia-cameron-highlands-on-lasioloma-arachnoideum-on-xanthophvllum-affina-6-september-1953-w-j-cherwick-a-johnston-no-1113-imi-54915-!-xix-vouauxiella-petrak-amp-h-sydow-beik-repert-now-spec-regni-vegal-482-1927-alysia-cavalc-amp-silva-publcoes-inst-micol-recife-647-32-RGJH3H.jpg ". Bulletin of the British Museum (Natural History). Botany; Botany. 64 D. L. HAWKSWORTH. Fig. 32 Pyrenotrichum staurosporum (IMI 4440d). A, Conidiogenous cells and developing conidia. B, Conidia. Specimens: Ghana: Aburi, on Landolphia owariensis, 24 May 1949, S. J. Hughes 791 (IMI 4440d).—Malaysia: Cameron Highlands, on Lasioloma arachnoideum on Xanthophvllum affina, 6 September 1953, W. J. Cherwick [A. Johnston no. 1113] (IMI 54915/-;?!). XIX. VOUAUXIELLA Petrak & H. Sydow Beik Repert. now Spec. Regni vegAl: 482 (1927). Alysia Cavalc. & Silva, Publcoes Inst. Micol. Recife 647 : 32 ( Stock Photo")
RMRGJH3H–. Bulletin of the British Museum (Natural History). Botany; Botany. 64 D. L. HAWKSWORTH. Fig. 32 Pyrenotrichum staurosporum (IMI 4440d). A, Conidiogenous cells and developing conidia. B, Conidia. Specimens: Ghana: Aburi, on Landolphia owariensis, 24 May 1949, S. J. Hughes 791 (IMI 4440d).—Malaysia: Cameron Highlands, on Lasioloma arachnoideum on Xanthophvllum affina, 6 September 1953, W. J. Cherwick [A. Johnston no. 1113] (IMI 54915/-;?!). XIX. VOUAUXIELLA Petrak & H. Sydow Beik Repert. now Spec. Regni vegAl: 482 (1927). Alysia Cavalc. & Silva, Publcoes Inst. Micol. Recife 647 : 32 (
![. Bulletin of the British Museum (Natural History). Botany; Botany. LICHENICOLOUS COELOMYCETES *A A v >- # 77. Fig. 35 Lichenophoma haematommatis. A, Pycnidia on the host. B, pycnidium. Scale not indicated. Reproduced from Keissler (1911 : 297). f 'â '*â > - 'â¢* r' â â 'â¢J*0" Vertical section of Mattick, in litt.). This taxon was described as producing numerous immersed pycnidia, 0* 15-0*2 mm diam, pale at the base but brownish above, delicate and hyphal, and producing ellipsoid, hyaline conidia measuring 2*5-3*4 x 1*7-2 jiva. No conidiophores were recog- nized. Pycnidia are often Stock Photo](https://c8.alamy.com/comp/RGJH1B/bulletin-of-the-british-museum-natural-history-botany-botany-lichenicolous-coelomycetes-a-a-v-gt-77-fig-35-lichenophoma-haematommatis-a-pycnidia-on-the-host-b-pycnidium-scale-not-indicated-reproduced-from-keissler-1911-297-f-gt-r-j0quot-vertical-section-of-mattick-in-litt-this-taxon-was-described-as-producing-numerous-immersed-pycnidia-0-15-02-mm-diam-pale-at-the-base-but-brownish-above-delicate-and-hyphal-and-producing-ellipsoid-hyaline-conidia-measuring-25-34-x-17-2-jiva-no-conidiophores-were-recog-nized-pycnidia-are-often-RGJH1B.jpg ". Bulletin of the British Museum (Natural History). Botany; Botany. LICHENICOLOUS COELOMYCETES *A A v >- # 77. Fig. 35 Lichenophoma haematommatis. A, Pycnidia on the host. B, pycnidium. Scale not indicated. Reproduced from Keissler (1911 : 297). f 'â '*â > - 'â¢* r' â â 'â¢J*0" Vertical section of Mattick, in litt.). This taxon was described as producing numerous immersed pycnidia, 0* 15-0*2 mm diam, pale at the base but brownish above, delicate and hyphal, and producing ellipsoid, hyaline conidia measuring 2*5-3*4 x 1*7-2 jiva. No conidiophores were recog- nized. Pycnidia are often Stock Photo")
RMRGJH1B–. Bulletin of the British Museum (Natural History). Botany; Botany. LICHENICOLOUS COELOMYCETES *A A v >- # 77. Fig. 35 Lichenophoma haematommatis. A, Pycnidia on the host. B, pycnidium. Scale not indicated. Reproduced from Keissler (1911 : 297). f 'â '*â > - 'â¢* r' â â 'â¢J*0" Vertical section of Mattick, in litt.). This taxon was described as producing numerous immersed pycnidia, 0* 15-0*2 mm diam, pale at the base but brownish above, delicate and hyphal, and producing ellipsoid, hyaline conidia measuring 2*5-3*4 x 1*7-2 jiva. No conidiophores were recog- nized. Pycnidia are often
![. The fungi which cause plant disease . Plant diseases; Fungi. THE 'FUNGI WHICH CAUSE PLANT DISEASE 521 one in the center of each spot, but slightly prominent; conidia cylindric or clavate-cylindric, 10-25 x 1.5-2 n. On watermelon leaves. S. cucurbitacearum Sacc. is also on cucurbits. " S. cannabina Pk. is on hemp producing leaf spots. S, nicotianse Pat. is reported from France as the cause of tobacco leaf spotting."" S. doUchi B. & C. Spots white, with a broad, light brown margin; conidia straight, subfusiform, 3-septate, 40 m- On cowpeas."^ S. medicaginis Rob. & D Stock Photo](https://c8.alamy.com/comp/RDE591/the-fungi-which-cause-plant-disease-plant-diseases-fungi-the-fungi-which-cause-plant-disease-521-one-in-the-center-of-each-spot-but-slightly-prominent-conidia-cylindric-or-clavate-cylindric-10-25-x-15-2-n-on-watermelon-leaves-s-cucurbitacearum-sacc-is-also-on-cucurbits-quot-s-cannabina-pk-is-on-hemp-producing-leaf-spots-s-nicotianse-pat-is-reported-from-france-as-the-cause-of-tobacco-leaf-spottingquotquot-s-douchi-b-amp-c-spots-white-with-a-broad-light-brown-margin-conidia-straight-subfusiform-3-septate-40-m-on-cowpeasquot-s-medicaginis-rob-amp-d-RDE591.jpg ". The fungi which cause plant disease . Plant diseases; Fungi. THE 'FUNGI WHICH CAUSE PLANT DISEASE 521 one in the center of each spot, but slightly prominent; conidia cylindric or clavate-cylindric, 10-25 x 1.5-2 n. On watermelon leaves. S. cucurbitacearum Sacc. is also on cucurbits. " S. cannabina Pk. is on hemp producing leaf spots. S, nicotianse Pat. is reported from France as the cause of tobacco leaf spotting."" S. doUchi B. & C. Spots white, with a broad, light brown margin; conidia straight, subfusiform, 3-septate, 40 m- On cowpeas."^ S. medicaginis Rob. & D Stock Photo")
RMRDE591–. The fungi which cause plant disease . Plant diseases; Fungi. THE 'FUNGI WHICH CAUSE PLANT DISEASE 521 one in the center of each spot, but slightly prominent; conidia cylindric or clavate-cylindric, 10-25 x 1.5-2 n. On watermelon leaves. S. cucurbitacearum Sacc. is also on cucurbits. " S. cannabina Pk. is on hemp producing leaf spots. S, nicotianse Pat. is reported from France as the cause of tobacco leaf spotting."" S. doUchi B. & C. Spots white, with a broad, light brown margin; conidia straight, subfusiform, 3-septate, 40 m- On cowpeas."^ S. medicaginis Rob. & D
RMRGKBWE–. Bulletin of the British Museum (Natural History) Botany. 252 D. L. HAWKSWORTH. Fig. 34 Sessiliospora bicolor (IMI 4101 lc—holotype). often forming long prostrate chains of 10 or more cells, determinate, short-cylindrical or barrel- shaped, dark brown, smooth-walled, mainly 8-10 urn long and 4-5-6 urn wide, with a distinct lateral scar on the dorsal face which is oval, subhyaline, and 1-1-5 |im diam. Conidia solitary, dry, pleurogenous, acrogenous, elongate-obclavate, 3-4 septate, smooth- and thick-walled, portion excluding the terminal cell dark brown and 18-25 urn long, basal cell abruptly
![. The fungi which cause plant disease . Plant diseases; Fungi. 556 THE FUNGI WHICH CAUSE PLANT DISEASE CI^N ' 100-120 /I, or by confluence larger; I /vO conidia abundant, clavate or wedge- ^ shaped, 11-15 x 2.5-3 n. The cause of leaf perforations of lettuce. M. violae (Pass.) Sacc."' Discoloration of the host slight; ^ ^^-^ 2^:^^yy acervuli nvunerous, scattered, small; ,,^ (f""" â conidia curved, or straight, 15-18 x yK^;;;-y^ J 5-6 ii, septum usually excentric. T, â,, ., , Small spots are produced on violet Fig. 374.âMarssonia violse. Spores and conidiophores. leaveS. Stock Photo](https://c8.alamy.com/comp/RDE560/the-fungi-which-cause-plant-disease-plant-diseases-fungi-556-the-fungi-which-cause-plant-disease-cin-100-120-i-or-by-confluence-larger-i-vo-conidia-abundant-clavate-or-wedge-shaped-11-15-x-25-3-n-the-cause-of-leaf-perforations-of-lettuce-m-violae-pass-saccquot-discoloration-of-the-host-slight-2yy-acervuli-nvunerous-scattered-small-fquotquotquot-conidia-curved-or-straight-15-18-x-yk-y-j-5-6-ii-septum-usually-excentric-t-small-spots-are-produced-on-violet-fig-374marssonia-violse-spores-and-conidiophores-leaves-RDE560.jpg ". The fungi which cause plant disease . Plant diseases; Fungi. 556 THE FUNGI WHICH CAUSE PLANT DISEASE CI^N ' 100-120 /I, or by confluence larger; I /vO conidia abundant, clavate or wedge- ^ shaped, 11-15 x 2.5-3 n. The cause of leaf perforations of lettuce. M. violae (Pass.) Sacc."' Discoloration of the host slight; ^ ^^-^ 2^:^^yy acervuli nvunerous, scattered, small; ,,^ (f""" â conidia curved, or straight, 15-18 x yK^;;;-y^ J 5-6 ii, septum usually excentric. T, â,, ., , Small spots are produced on violet Fig. 374.âMarssonia violse. Spores and conidiophores. leaveS. Stock Photo")
RMRDE560–. The fungi which cause plant disease . Plant diseases; Fungi. 556 THE FUNGI WHICH CAUSE PLANT DISEASE CI^N ' 100-120 /I, or by confluence larger; I /vO conidia abundant, clavate or wedge- ^ shaped, 11-15 x 2.5-3 n. The cause of leaf perforations of lettuce. M. violae (Pass.) Sacc."' Discoloration of the host slight; ^ ^^-^ 2^:^^yy acervuli nvunerous, scattered, small; ,,^ (f""" â conidia curved, or straight, 15-18 x yK^;;;-y^ J 5-6 ii, septum usually excentric. T, â,, ., , Small spots are produced on violet Fig. 374.âMarssonia violse. Spores and conidiophores. leaveS.
RMRDYBRY–. The essentials of botany. Botany. 192 BOTANY. of the leaves of the Barberry. These cups are at first rounded masses of conidia which develop on the internal. FiQ. 113.—Wheat-rust (Puooinia graminia). J, a cross-seotion of a Bar- berry-leaf through a mass of cluster-cups; o, n, a, cups opened and shed- ding their conidia; p, and A, above, cups not yet opened ; sp, sj), spermo- gones which produce spermatia, whose function is not known. J/, three Red-rust spores, ur, on stalks; f, a Black-rust spore. III., a mass of Black- rust spores bursting through the epidermis 6, of a leaf. All highly mag
RMRDWBP6–. The essentials of botany. Botany. 170 BOTANY. parasite, and at length burst through the epidermis (Fig. 94, A and I). The conidia quickly drop out and are car-. FiG. 94.—Wheat-rust (Puccinia graminis). f, a cross-section of a Barberry- leaf through a mass of Cluster-cups; a, o, a, cups opened and shedding their conidia; p, and A, above, cups not yet opened; so, ap, spermogones which pro- duce spermatia, whose function is not known. U, three Red-rust spores, ur, on stalks; f, a Black-rust spore. ///, a mass of Bla<!k-rust spores bursting through the epidermis, e, of a leaf. All highly magn
![. The fungi which cause plant disease . Plant diseases; Fungi. THE FUNGI WHICH CAUSE PLANT DISEASE 653 oxy-. (see p. 46) of potatoes; it is perhaps identical with F. sporum. F. erubescens A. & v. Ov. produces small black sunken spots on green and ripe toma- toes in Germany *'"' re- sulting finally in mummi- fication. Parasitism by means of enzymes was demonstrated. F. lycopersici Sacc.^"'"^"- Sporodochia as in F. oxy- sporum; conidia falcate, acute, 25-30 x 3.5-4 fi, .^^SS^S^SZSS^KSU H-i hyaline to yellowish. It is the cause of a to- mato wilt or "sleeping disease& Stock Photo](https://c8.alamy.com/comp/RDE4T9/the-fungi-which-cause-plant-disease-plant-diseases-fungi-the-fungi-which-cause-plant-disease-653-oxy-see-p-46-of-potatoes-it-is-perhaps-identical-with-f-sporum-f-erubescens-a-amp-v-ov-produces-small-black-sunken-spots-on-green-and-ripe-toma-toes-in-germany-quot-re-sulting-finally-in-mummi-fication-parasitism-by-means-of-enzymes-was-demonstrated-f-lycopersici-saccquotquotquot-sporodochia-as-in-f-oxy-sporum-conidia-falcate-acute-25-30-x-35-4-fi-sssszssksu-h-i-hyaline-to-yellowish-it-is-the-cause-of-a-to-mato-wilt-or-quotsleeping-disease-RDE4T9.jpg ". The fungi which cause plant disease . Plant diseases; Fungi. THE FUNGI WHICH CAUSE PLANT DISEASE 653 oxy-. (see p. 46) of potatoes; it is perhaps identical with F. sporum. F. erubescens A. & v. Ov. produces small black sunken spots on green and ripe toma- toes in Germany *'"' re- sulting finally in mummi- fication. Parasitism by means of enzymes was demonstrated. F. lycopersici Sacc.^"'"^"- Sporodochia as in F. oxy- sporum; conidia falcate, acute, 25-30 x 3.5-4 fi, .^^SS^S^SZSS^KSU H-i hyaline to yellowish. It is the cause of a to- mato wilt or "sleeping disease& Stock Photo")
RMRDE4T9–. The fungi which cause plant disease . Plant diseases; Fungi. THE FUNGI WHICH CAUSE PLANT DISEASE 653 oxy-. (see p. 46) of potatoes; it is perhaps identical with F. sporum. F. erubescens A. & v. Ov. produces small black sunken spots on green and ripe toma- toes in Germany *'"' re- sulting finally in mummi- fication. Parasitism by means of enzymes was demonstrated. F. lycopersici Sacc.^"'"^"- Sporodochia as in F. oxy- sporum; conidia falcate, acute, 25-30 x 3.5-4 fi, .^^SS^S^SZSS^KSU H-i hyaline to yellowish. It is the cause of a to- mato wilt or "sleeping disease&
RMRGJHP6–. Bulletin of the British Museum (Natural History). Botany; Botany. D. L. HAWKSWORTH B. Fig. 7 Epicladonia simplex (H—holotype). A, Infected podetia showing pycnidia arising from galls and directly on the podetia (x 12*5). B, Vertical section of pycnidium (x 500). to elongate ampulliform, only slightly tapered towards the apex, annellate with to 3 annellations, hyaline, smooth-walled, 7-15 x2'5-3*5 jum. Conidia arising singly, not catenate, subcylindrical, always rounded at the apex, truncated at the base with a scar c. 1-5-2 pm wide, always simple, 2 or more guttulate, thin-walled, smooth-wal
![. Bulletin of the U.S. Department of Agriculture. Agriculture; Agriculture. Bui. 1117, U S. Dept. of Agriculture. Plate I.. Entomophthora fumosa. 1, Group of conidiophores, showing conidia in various stages of formation, X 164. 2-8, Co- nidia, X 655. 9, Hyphal bodies, showing appearance when mounted in alcohol, X 655. 10, Hyphal bodies, showing nuclei, X 605. 11, Resting spores, X 655. 12, Germmation of co- nidium,'showing capUlary-Uke germ tubes upon which secondary conidia are formed, X 332. 13, "Germinating" hyphal body, X 332. 1-4, Encysted hyphal bodies sometimes associated with Stock Photo](https://c8.alamy.com/comp/RGBEXA/bulletin-of-the-us-department-of-agriculture-agriculture-agriculture-bui-1117-u-s-dept-of-agriculture-plate-i-entomophthora-fumosa-1-group-of-conidiophores-showing-conidia-in-various-stages-of-formation-x-164-2-8-co-nidia-x-655-9-hyphal-bodies-showing-appearance-when-mounted-in-alcohol-x-655-10-hyphal-bodies-showing-nuclei-x-605-11-resting-spores-x-655-12-germmation-of-co-nidiumshowing-capulary-uke-germ-tubes-upon-which-secondary-conidia-are-formed-x-332-13-quotgerminatingquot-hyphal-body-x-332-1-4-encysted-hyphal-bodies-sometimes-associated-with-RGBEXA.jpg ". Bulletin of the U.S. Department of Agriculture. Agriculture; Agriculture. Bui. 1117, U S. Dept. of Agriculture. Plate I.. Entomophthora fumosa. 1, Group of conidiophores, showing conidia in various stages of formation, X 164. 2-8, Co- nidia, X 655. 9, Hyphal bodies, showing appearance when mounted in alcohol, X 655. 10, Hyphal bodies, showing nuclei, X 605. 11, Resting spores, X 655. 12, Germmation of co- nidium,'showing capUlary-Uke germ tubes upon which secondary conidia are formed, X 332. 13, "Germinating" hyphal body, X 332. 1-4, Encysted hyphal bodies sometimes associated with Stock Photo")
RMRGBEXA–. Bulletin of the U.S. Department of Agriculture. Agriculture; Agriculture. Bui. 1117, U S. Dept. of Agriculture. Plate I.. Entomophthora fumosa. 1, Group of conidiophores, showing conidia in various stages of formation, X 164. 2-8, Co- nidia, X 655. 9, Hyphal bodies, showing appearance when mounted in alcohol, X 655. 10, Hyphal bodies, showing nuclei, X 605. 11, Resting spores, X 655. 12, Germmation of co- nidium,'showing capUlary-Uke germ tubes upon which secondary conidia are formed, X 332. 13, "Germinating" hyphal body, X 332. 1-4, Encysted hyphal bodies sometimes associated with
RMRGKCBW–. Bulletin of the British Museum (Natural History) Botany. 208 D. L. HAWKSWORTH pallide brunnea, levia, 15-35 x2-5-4 fj.m. Cellulae conidiogenae monoblasticae, integratae, subcylin- dricae. Conidia catenata, sicca, acrogena, ellipsoidea vel doliiformia, 1-septata, levia, pallidissime brunnea, 5-8(-9) x4-6(-7) ^.m. Typus: Dania, Sjaelland, Vridsl0selille, in Candelariella vitellina (HofTm.) Mull. Arg. (apothecia) ad lignum, 20.vii.1944, M. Skytte Christiansen 11.704 (hb. Christiansen 552—holotypus!). Exsiccatae: Rasanen, Lich. Fenn. no. 347 p.p. (BM!, IMI 228050!, hb. Christiansen; sub Didymocy
RMRE3953–. Danish fungi as represented in the herbarium of E. Rostrup;. Fungi. 75 124. Entomophtora aphrophorae Rostrup 96 m ^'^^ c. fig. Hyphae &. conidia hyalinae v. dilute fuscidulae; hyphae 8â10 M cr., guttulatae; rhizoid. ambitulonge exstant., ramos.; hyphae conidiophorae sursum incrassatae; conidia fusoideo-oblonga, 16â18 1^ X 7â8 K 1- guttulata. Sporae perdurantes ignotae. «55^. Fig. *â Entomophtora aphrophorae Rostrup. 1. Aphrophora spumarea (slightly enlarged). 2. Rhizoides (X 100). 3. Hyphe (X 600). 4. Conidiophores (X 800). 5. Conidies (X 800). Aphrophora spumaria. J. Saeby, Gudenaa (F.
RMRDE52F–. The fungi which cause plant disease . Plant diseases; Fungi. THE FUNGI WHICH CAUSE PLANT DISEASE 591 Ri geranii (West.) Fcl. on cultivated geraniums R. primulae Thiim. Spots rounded-angular, subochraceous, emarginate; conidio- phores amphigenous, 50-60 x 5 jti, continuous, somewhat denticu- late, rarely branched; conidia fusoid-cylindric, 20-30 x 3-6 n, con- tinuous or 1-septate. On Primula.^* R. lactea (Desm.) Sacc. is on violets; R. heraclei (Oud.) Sacc. on cultivated Heracleums; R. onobrychidis P. & D. on leaves of sainfoin. R. cynarae Sacc. causes loss of artichokes in France and Afr
![. British fungi (Hymenomycetes). Fungi -- Great Britain. <&$*â " C. Guepinia helvelloides. half natural size. One- Genus LXIII.âDacrymyces (5a/cpu, a tear; /xvkvs, a fungus). Dacrymyces. Nees Syst. p. 89. Gelatinous, homogeneous, pervaded internally with septate fibres; conidia linked together like a necklace; sporophores clavate at ^ the end of the filaments, bifurcate n when mature ; spores septate. Tul. A?z?i. Sc. Nat 1853, /. 11. f. 19. /. 12. Fr. Hym. Eur. p. 697. * Red. ** Yellowish. *** Pallid or fuscous. * Red. 1. D. macrosporus B. & Br. â Rose-colour, gelatinous, tubcr Stock Photo](https://c8.alamy.com/comp/RH33P1/british-fungi-hymenomycetes-fungi-great-britain-ltamp-quot-c-guepinia-helvelloides-half-natural-size-one-genus-lxiiidacrymyces-5acpu-a-tear-xvkvs-a-fungus-dacrymyces-nees-syst-p-89-gelatinous-homogeneous-pervaded-internally-with-septate-fibres-conidia-linked-together-like-a-necklace-sporophores-clavate-at-the-end-of-the-filaments-bifurcate-n-when-mature-spores-septate-tul-azi-sc-nat-1853-11-f-19-12-fr-hym-eur-p-697-red-yellowish-pallid-or-fuscous-red-1-d-macrosporus-b-amp-br-rose-colour-gelatinous-tubcr-RH33P1.jpg ". British fungi (Hymenomycetes). Fungi -- Great Britain. <&$*â " C. Guepinia helvelloides. half natural size. One- Genus LXIII.âDacrymyces (5a/cpu, a tear; /xvkvs, a fungus). Dacrymyces. Nees Syst. p. 89. Gelatinous, homogeneous, pervaded internally with septate fibres; conidia linked together like a necklace; sporophores clavate at ^ the end of the filaments, bifurcate n when mature ; spores septate. Tul. A?z?i. Sc. Nat 1853, /. 11. f. 19. /. 12. Fr. Hym. Eur. p. 697. * Red. ** Yellowish. *** Pallid or fuscous. * Red. 1. D. macrosporus B. & Br. â Rose-colour, gelatinous, tubcr Stock Photo")
RMRH33P1–. British fungi (Hymenomycetes). Fungi -- Great Britain. <&$*â " C. Guepinia helvelloides. half natural size. One- Genus LXIII.âDacrymyces (5a/cpu, a tear; /xvkvs, a fungus). Dacrymyces. Nees Syst. p. 89. Gelatinous, homogeneous, pervaded internally with septate fibres; conidia linked together like a necklace; sporophores clavate at ^ the end of the filaments, bifurcate n when mature ; spores septate. Tul. A?z?i. Sc. Nat 1853, /. 11. f. 19. /. 12. Fr. Hym. Eur. p. 697. * Red. ** Yellowish. *** Pallid or fuscous. * Red. 1. D. macrosporus B. & Br. â Rose-colour, gelatinous, tubcr
RMRGK022–. Bulletin of the British Museum (Natural History). Botany; Botany. 12 D. L. HAWKSWORTH B. lOum Fiu. 3 Bachmanniomyces uncialicola (W 1929/2—holotype of Sirococcus lichenicola). A, Gall on geniculately deformed branch. B, Vertical section of pycnidium. C, Vertical section of pycnidial wall. D, Conidiogenous cells. E, Conidia. Exsiccatae*: Arnold, Lick. Exs. no. 1021a (BM!; sub Cladonia uncialis f. biuncialis).—Sandstede, Clad. Exs. no. 161 (BM!; sub C. uncialis), no. 162 (BM!, UPS!; sub C. uncialis).—Schaerer, Lich. If civ. no. 514 (not found on this number in BM but cited by Sandstede, 1931 :
RMRH33RY–. British fungi (Hymenomycetes). Fungi -- Great Britain. EXIDIA. 3*3 15. T. foliicola Fckl.—White above, brown below, scattered, Tremeiia. crowded, somewhat sessile, granular, globose, gelatinous above, hard and dry below, when dry cup-shaped. Conidia on the apices of branched sterigmata, fusiform curved, simple, hyaline, 6x2 mk. On the lower surface of leaves of Ritbus friiticosus with Phrag- midinm. Castle Rising, 1882. March. Name—folium, a leaf; colo, to inhabit. Fckl. Symb. Myc. p. 402. Grevil- lea, vol. xiii. p. 50. Sacc. Fung. Ital. n. 1024. 16. T. torta Berk.— Yellow or orange, minute,
RMRGJGJG–. Bulletin of the British Museum (Natural History). Botany; Botany. Fig. 1 Conidia in genus Parmelia s. lat. a: conidiophore with filiform conidia, P. euneta Stirton, 3K 16/122. b: bifusiform conidium, P. ducalis Jatta, E 30/12. c: sublageniform conidium, P. maclayana Miill. Arg., Ryvarden 9032. d: unciform conidium, P. subpraesignis Nyl., T 16/137. e: rod-shaped conidium, P. eciliata (Nyl.) Nyl., 4 May 1978, Dahls.n. Sublageniform conidia with one or two darker 'dots' (see below under rod-shaped conidia) have been seen in the subgenus Everniiformes. (c) Unciform conidia. We have chosen this t
RMRDDAYR–. The fungi which cause plant disease . Plant diseases; Fungi. THE FUNGI WHICH CAUSE PLANT DISEASE 261 possesses an Alternaria conidial form. Following Diedicke, the forms given below would be recognized. P. bromi Died. Perithecia brown, hairy; asci 189-288 x 34-59 n, saccate, thin- walled; spores 2-seriate, golden-brown, 4-celled, 48-83 x 19-33 n. Conidia (=Helminthosporium bromi) on brownish spots, 108- 150 X 13-20 li, 5 to 7-celled, dark colored. On Bromus. P. gramineum Died. Conidia (=Helminthosporium gramineum); conidiophores short, subflexuose, light-brown; conidia solitary, elongate-cyl
![. Danish fungi as represented in the herbarium of E. Rostrup;. Fungi. 491. Fig. 36. Pestalozzia Guepini. 1. A leaf of Camellia infected. 2. Cirrhi of the same leaf ''/i. 3. Part of the same cirrhi -r- 4. 2 conidia -jââ rrom K 02 a. 2803. Pestalozzia gongrogena Temme, Syll. X â¢'"^ All. VII '°^ R 02 a ^"l 5a/i.v cinerea. L. Hardenberg. 5a/ix iminalis. L. Saxkohing. 2804. Pestalozzia maculicola Rostrup 95 a -", 02 a '^'^ see tab. VIII fig. 102. Maculae orbiculares, diam. 3â4 mm albidae, amphigenae, lineo fusco cinctae; acervuli minutissimi, iiigri; conidia oblongo-fusoidea, 3-se Stock Photo](https://c8.alamy.com/comp/RE38W0/danish-fungi-as-represented-in-the-herbarium-of-e-rostrup-fungi-491-fig-36-pestalozzia-guepini-1-a-leaf-of-camellia-infected-2-cirrhi-of-the-same-leaf-i-3-part-of-the-same-cirrhi-r-4-2-conidia-j-rrom-k-02-a-2803-pestalozzia-gongrogena-temme-syll-x-quot-all-vii-r-02-a-quotl-5aiv-cinerea-l-hardenberg-5aix-iminalis-l-saxkohing-2804-pestalozzia-maculicola-rostrup-95-a-quot-02-a-see-tab-viii-fig-102-maculae-orbiculares-diam-34-mm-albidae-amphigenae-lineo-fusco-cinctae-acervuli-minutissimi-iiigri-conidia-oblongo-fusoidea-3-se-RE38W0.jpg ". Danish fungi as represented in the herbarium of E. Rostrup;. Fungi. 491. Fig. 36. Pestalozzia Guepini. 1. A leaf of Camellia infected. 2. Cirrhi of the same leaf ''/i. 3. Part of the same cirrhi -r- 4. 2 conidia -jââ rrom K 02 a. 2803. Pestalozzia gongrogena Temme, Syll. X â¢'"^ All. VII '°^ R 02 a ^"l 5a/i.v cinerea. L. Hardenberg. 5a/ix iminalis. L. Saxkohing. 2804. Pestalozzia maculicola Rostrup 95 a -", 02 a '^'^ see tab. VIII fig. 102. Maculae orbiculares, diam. 3â4 mm albidae, amphigenae, lineo fusco cinctae; acervuli minutissimi, iiigri; conidia oblongo-fusoidea, 3-se Stock Photo")
RMRE38W0–. Danish fungi as represented in the herbarium of E. Rostrup;. Fungi. 491. Fig. 36. Pestalozzia Guepini. 1. A leaf of Camellia infected. 2. Cirrhi of the same leaf ''/i. 3. Part of the same cirrhi -r- 4. 2 conidia -jââ rrom K 02 a. 2803. Pestalozzia gongrogena Temme, Syll. X â¢'"^ All. VII '°^ R 02 a ^"l 5a/i.v cinerea. L. Hardenberg. 5a/ix iminalis. L. Saxkohing. 2804. Pestalozzia maculicola Rostrup 95 a -", 02 a '^'^ see tab. VIII fig. 102. Maculae orbiculares, diam. 3â4 mm albidae, amphigenae, lineo fusco cinctae; acervuli minutissimi, iiigri; conidia oblongo-fusoidea, 3-se
RMRGKAK9–. Bulletin of the British Museum (Natural History). Botany; Botany. 90 H. KROG & T. D. V. SWINSCOW 29. Parmelia jacarandicola Krog & Swinscow sp. nov. Fig. 14 Thallus corticola, griseus. Lobi 1-2 cm lati, crenati, ciliis 0*5-2 (3) mm longis, superne leviter maculati. Soralia isidiaque nulla. Apothecia submarginalia, stipitata, disco perforate Spori 15-16 x 8-10/zm. Conidia filiformia, 10-15 /im longa. Acidum gyrophoricum, acidum psoromicum, et atranorinum continens. Thallus corticolous, loosely attached, pale grey. Lobes 1-2 cm broad, crenate, ciliate, cilia 05-2 (3) mm long. Upper sid
RMRDDB0W–. The fungi which cause plant disease . Plant diseases; Fungi. Fig. 186.—Didymella. A, ascus; B, hymenium of a pycnidium. After Brefeld. Fig. 187. — Didyipo- sphxria. C, an as- cus; D, con idio- phore and conidia. After Brefeld. Fig. 188. —Dflo- p h 1 a gramiiiis. J, ascus; K, spore. After Winter. D. sphaeroides (Pers.) Fr. is on Populus leaves in Europe. D. catalpse.'^^ Perithecia very small, scattered, embedded in the tissue of the leaf, pyriform to nearly spherical, varying in width from 48-104 n and in depth from 64^140 ii; ostiole broadly conical, erumpent; asci 8-spored, cylindrical, usu
RMRDJGWJ–. The essentials of botany. Botany. 170 BOTANY. parasite, and at length burst through the epidermis (Fig. 94, A and I). The oonidia quickly drop out and are car-. FiG. 94.—Wheat-nist (Puccinia graminis). I, a cross-section of a Barberry- leaf through a mass of Cluster-cups; a, a, a, cups opened and slieddingr their conidia; p, and A, above, cu^s not yet opened; sp, sp, spermogones which pro- duce spermatia, whose function is not Icnown. ii, three Red-rust spores, ttr, on stalks: t, a Black-rust spore. 7/J, a mass of Black-rust spores bursting through the epidermis, e, of a leaf. All highly mag
RMRDE4Y6–. The fungi which cause plant disease . Plant diseases; Fungi. 620 THE FUNGI WHICH CAUSE PLANT DISEASE. Fia. 418.—Macro- sporium cucumer- iuum on cante- loupe. After Chester. mm. in diameter; conidiophores fasciculate or solitary, subgeniculate, 1 to 3-septate, 35-50 x 5-6 m; conidia clavate, slender-stipitate, 3 to 8-septate, somewhat constricted, submuriform, 30-75 X 15-25 n; pedicel 25-35 /i long. On leaves, stems and fruits of cantaloupes. M. cladosporioides Desm. is on beet, lettuce, onion and many other hosts. M. verrucosum I.utz. occurs on cacao; M. gramineum Cke.'^* on sugar cane. M. u
RMRGKAEG–. Bulletin of the British Museum (Natural History). Botany; Botany. PARMELIA (AMPHIGYMNIA) IN EAST AFRICA 207 Rubanda County, 1 km W of Hamurwa, 3U 46/3. Ankole District, Igara County, 1 km E of Lubare Ride Pass, Lye L 398 (herb. Lye). 49. Parmelia rava Krog & Swinscow sp. nov. Fig. 23 Thallus corticola, ravus. Lobi 0*5—1 (1*5) cm lati, integri vel leniter crenati, eciliati, superne emaculati. Soralia marginalia, vulgo ad laminam extensa, sorediis granulosis. Apothecia ad laminam, disco imperforato. Spori 18-20 (22) x 8-10 jum. Conidia filiformia, 10—12 //m longa. Acidum protocetraricum, a
![. Cultural studies of species of Penicillium. Penicillium -- Cultures and culture media; Fungi -- Cultures and culture media. l'KMt m.i.h.m i;n;ri.(isr.M. 61 10-1.") ] .%⢠2.5/i, bearing erticils of conidiiferoue cells, of branchlets, or of conidiiferoue cells and branchlets together; conidiiferous cells 9 L2 by 2/x, acuminate, bearing I divergenl chains of conidia; conidia 3.4 3.8 by 2.5 :'>,», elliptical, green, mostly with swelling at one end, verruculose when ripe, sw tiling to â¢">,"- and germinating by one or two i ii 1 »⢠â: colonies do not or only partially l Stock Photo](https://c8.alamy.com/comp/RD6T49/cultural-studies-of-species-of-penicillium-penicillium-cultures-and-culture-media-fungi-cultures-and-culture-media-lkmt-mihm-inriisrm-61-10-1quot-25i-bearing-erticils-of-conidiiferoue-cells-of-branchlets-or-of-conidiiferoue-cells-and-branchlets-together-conidiiferous-cells-9-l2-by-2x-acuminate-bearing-i-divergenl-chains-of-conidia-conidia-34-38-by-25-gt-elliptical-green-mostly-with-swelling-at-one-end-verruculose-when-ripe-sw-tiling-to-quotgtquot-and-germinating-by-one-or-two-i-ii-1-colonies-do-not-or-only-partially-l-RD6T49.jpg ". Cultural studies of species of Penicillium. Penicillium -- Cultures and culture media; Fungi -- Cultures and culture media. l'KMt m.i.h.m i;n;ri.(isr.M. 61 10-1.") ] .%⢠2.5/i, bearing erticils of conidiiferoue cells, of branchlets, or of conidiiferoue cells and branchlets together; conidiiferous cells 9 L2 by 2/x, acuminate, bearing I divergenl chains of conidia; conidia 3.4 3.8 by 2.5 :'>,», elliptical, green, mostly with swelling at one end, verruculose when ripe, sw tiling to â¢">,"- and germinating by one or two i ii 1 »⢠â: colonies do not or only partially l Stock Photo")
RMRD6T49–. Cultural studies of species of Penicillium. Penicillium -- Cultures and culture media; Fungi -- Cultures and culture media. l'KMt m.i.h.m i;n;ri.(isr.M. 61 10-1.") ] .%⢠2.5/i, bearing erticils of conidiiferoue cells, of branchlets, or of conidiiferoue cells and branchlets together; conidiiferous cells 9 L2 by 2/x, acuminate, bearing I divergenl chains of conidia; conidia 3.4 3.8 by 2.5 :'>,», elliptical, green, mostly with swelling at one end, verruculose when ripe, sw tiling to â¢">,"- and germinating by one or two i ii 1 »⢠â: colonies do not or only partially l
RMRGKC3T–. Bulletin of the British Museum (Natural History) Botany. 234 D. L. HAWKSWORTH. Fig. 24 Illosporium carneum (Jaap, Fungi set. Exs. 450, K). A, Section through sporodochium on a Peltigera thallus (a, limit of sporodochium) ( x250). B, Conidia showing verrucae ( xlOOO). C, Conidia (x3000). D, Conidia showing verrucae (x 12 000). A, C and D Scanning electron micrographs, B Differential interference contrast. Icones: Corda, Icon. Fung. 3 : PI. 1 fig. 1 (1839).—Killian & Werner, Bull, trimest. Soc. mycol. Fr. 41 : PI. 8 fig. 1-4 (1925).—Keissler, Rabenh. Krypt.-Fl. 8 : 630 fig. 131-132 (1930).
![. Danish fungi as represented in the herbarium of E. Rostrup;. Fungi. Fig. 37. Titaea maxilliformis. 3 conidia!^. From R 94 f. Dematiaceae—Phaeosporae. Coniosporium. 3005. Coniosporium physciae (Kalchbr.) Sacc, Syll. IV'''^ Ldau VIII ==^ Xanthoria pariefina. S. Roskilde. May. 3006. Coniosporium filicinum Rostrup 98 f, 02 a«", Ldau VIII ^^ Conidiis ellipsoideis 8—10 ^^ X 5—6 ^^ vel sphaeroideis 5—6 ^' diam. On leaves of Pteris cretica. F. Svenborg (Quist); S. Kbh. C°h- 98 Ludv. Andersen). 3007. Coniosporium nigrum Fries S. M. Ill ^^ Syll. IV"", Ldau VIII"". On wood o Stock Photo](https://c8.alamy.com/comp/RE38TJ/danish-fungi-as-represented-in-the-herbarium-of-e-rostrup-fungi-fig-37-titaea-maxilliformis-3-conidia!-from-r-94-f-dematiaceaephaeosporae-coniosporium-3005-coniosporium-physciae-kalchbr-sacc-syll-iv-ldau-viii-==-xanthoria-pariefina-s-roskilde-may-3006-coniosporium-filicinum-rostrup-98-f-02-aquot-ldau-viii-conidiis-ellipsoideis-810-x-56-vel-sphaeroideis-56-diam-on-leaves-of-pteris-cretica-f-svenborg-quist-s-kbh-ch-98-ludv-andersen-3007-coniosporium-nigrum-fries-s-m-ill-syll-ivquotquot-ldau-viiiquotquot-on-wood-o-RE38TJ.jpg ". Danish fungi as represented in the herbarium of E. Rostrup;. Fungi. Fig. 37. Titaea maxilliformis. 3 conidia!^. From R 94 f. Dematiaceae—Phaeosporae. Coniosporium. 3005. Coniosporium physciae (Kalchbr.) Sacc, Syll. IV'''^ Ldau VIII ==^ Xanthoria pariefina. S. Roskilde. May. 3006. Coniosporium filicinum Rostrup 98 f, 02 a«", Ldau VIII ^^ Conidiis ellipsoideis 8—10 ^^ X 5—6 ^^ vel sphaeroideis 5—6 ^' diam. On leaves of Pteris cretica. F. Svenborg (Quist); S. Kbh. C°h- 98 Ludv. Andersen). 3007. Coniosporium nigrum Fries S. M. Ill ^^ Syll. IV"", Ldau VIII"". On wood o Stock Photo")
RMRE38TJ–. Danish fungi as represented in the herbarium of E. Rostrup;. Fungi. Fig. 37. Titaea maxilliformis. 3 conidia!^. From R 94 f. Dematiaceae—Phaeosporae. Coniosporium. 3005. Coniosporium physciae (Kalchbr.) Sacc, Syll. IV'''^ Ldau VIII ==^ Xanthoria pariefina. S. Roskilde. May. 3006. Coniosporium filicinum Rostrup 98 f, 02 a«", Ldau VIII ^^ Conidiis ellipsoideis 8—10 ^^ X 5—6 ^^ vel sphaeroideis 5—6 ^' diam. On leaves of Pteris cretica. F. Svenborg (Quist); S. Kbh. C°h- 98 Ludv. Andersen). 3007. Coniosporium nigrum Fries S. M. Ill ^^ Syll. IV"", Ldau VIII"". On wood o
![. Danish fungi as represented in the herbarium of E. Rostrup;. Fungi. 513 Titaea. 3003. Titaea maxilliformis Rostrup 94 f "^ c. icon., Syll. XI «"', Ldau VIII '"=- Effusa, tota hyalina; conidia composita ex 5 articulis erectis inter se varie connex- is; articulus inferior teres, continuus vel l-septatus,ba- silaris, 8—10 M-long.; supe- rior cylindra- ceus 18-20 M X 2-3 K utrinque ro- tundatus, 3- septatus, cui lateraliter additur articulus alter similis, sed angustior; e lateribus trium articulorum assurgit utrinque seta sigmoideo-inflexa, apice acutissima, 20—24 H longa. On ste Stock Photo](https://c8.alamy.com/comp/RE38TP/danish-fungi-as-represented-in-the-herbarium-of-e-rostrup-fungi-513-titaea-3003-titaea-maxilliformis-rostrup-94-f-quot-c-icon-syll-xi-quot-ldau-viii-quot=-effusa-tota-hyalina-conidia-composita-ex-5-articulis-erectis-inter-se-varie-connex-is-articulus-inferior-teres-continuus-vel-l-septatusba-silaris-810-m-long-supe-rior-cylindra-ceus-18-20-m-x-2-3-k-utrinque-ro-tundatus-3-septatus-cui-lateraliter-additur-articulus-alter-similis-sed-angustior-e-lateribus-trium-articulorum-assurgit-utrinque-seta-sigmoideo-inflexa-apice-acutissima-2024-h-longa-on-ste-RE38TP.jpg ". Danish fungi as represented in the herbarium of E. Rostrup;. Fungi. 513 Titaea. 3003. Titaea maxilliformis Rostrup 94 f "^ c. icon., Syll. XI «"', Ldau VIII '"=- Effusa, tota hyalina; conidia composita ex 5 articulis erectis inter se varie connex- is; articulus inferior teres, continuus vel l-septatus,ba- silaris, 8—10 M-long.; supe- rior cylindra- ceus 18-20 M X 2-3 K utrinque ro- tundatus, 3- septatus, cui lateraliter additur articulus alter similis, sed angustior; e lateribus trium articulorum assurgit utrinque seta sigmoideo-inflexa, apice acutissima, 20—24 H longa. On ste Stock Photo"){kind=icon}
RMRE38TP–. Danish fungi as represented in the herbarium of E. Rostrup;. Fungi. 513 Titaea. 3003. Titaea maxilliformis Rostrup 94 f "^ c. icon., Syll. XI «"', Ldau VIII '"=- Effusa, tota hyalina; conidia composita ex 5 articulis erectis inter se varie connex- is; articulus inferior teres, continuus vel l-septatus,ba- silaris, 8—10 M-long.; supe- rior cylindra- ceus 18-20 M X 2-3 K utrinque ro- tundatus, 3- septatus, cui lateraliter additur articulus alter similis, sed angustior; e lateribus trium articulorum assurgit utrinque seta sigmoideo-inflexa, apice acutissima, 20—24 H longa. On ste
![. The fungi which cause plant disease . Plant diseases; Fungi. 630 THE FUNGI WHICH CAUSE PLANT DISEASE On cowpea and bean in America. Usually causing but slight damage. C. vignae Rac. (not E. & E.) is described as injurious to the cowpea in Java.'"* C. medicaginis E. & E. Spots amphigenous, smoky to black, 0.5-5 mm. in diameter, orbicular, indefinite; conidiophores subhyaline, becoming brown- ish, continuous, geniculate, 35-45 x 4-5 n; conidia cylindric- fusoid, 3 to 6-septate, 40-60 x 3 /x. On alfalfa and crimson clover.'^* C. aximinensis Br. & Cav. is foimd on sulla leaves; Stock Photo](https://c8.alamy.com/comp/RDE4X4/the-fungi-which-cause-plant-disease-plant-diseases-fungi-630-the-fungi-which-cause-plant-disease-on-cowpea-and-bean-in-america-usually-causing-but-slight-damage-c-vignae-rac-not-e-amp-e-is-described-as-injurious-to-the-cowpea-in-javaquot-c-medicaginis-e-amp-e-spots-amphigenous-smoky-to-black-05-5-mm-in-diameter-orbicular-indefinite-conidiophores-subhyaline-becoming-brown-ish-continuous-geniculate-35-45-x-4-5-n-conidia-cylindric-fusoid-3-to-6-septate-40-60-x-3-x-on-alfalfa-and-crimson-clover-c-aximinensis-br-amp-cav-is-foimd-on-sulla-leaves-RDE4X4.jpg ". The fungi which cause plant disease . Plant diseases; Fungi. 630 THE FUNGI WHICH CAUSE PLANT DISEASE On cowpea and bean in America. Usually causing but slight damage. C. vignae Rac. (not E. & E.) is described as injurious to the cowpea in Java.'"* C. medicaginis E. & E. Spots amphigenous, smoky to black, 0.5-5 mm. in diameter, orbicular, indefinite; conidiophores subhyaline, becoming brown- ish, continuous, geniculate, 35-45 x 4-5 n; conidia cylindric- fusoid, 3 to 6-septate, 40-60 x 3 /x. On alfalfa and crimson clover.'^* C. aximinensis Br. & Cav. is foimd on sulla leaves; Stock Photo")
RMRDE4X4–. The fungi which cause plant disease . Plant diseases; Fungi. 630 THE FUNGI WHICH CAUSE PLANT DISEASE On cowpea and bean in America. Usually causing but slight damage. C. vignae Rac. (not E. & E.) is described as injurious to the cowpea in Java.'"* C. medicaginis E. & E. Spots amphigenous, smoky to black, 0.5-5 mm. in diameter, orbicular, indefinite; conidiophores subhyaline, becoming brown- ish, continuous, geniculate, 35-45 x 4-5 n; conidia cylindric- fusoid, 3 to 6-septate, 40-60 x 3 /x. On alfalfa and crimson clover.'^* C. aximinensis Br. & Cav. is foimd on sulla leaves;
RMRE38NR–. Danish fungi as represented in the herbarium of E. Rostrup;. Fungi. Tab. V.. Fig. 63, Entyloma Fig. 57-58: Entyloma Henningsianum Sydow, hab loma ossifragi Rostrup, sp. —, hab.-p. — Fig. 61: Entyloma catenulatum Rostrup, sp. Fig. 62: Entyloma crastophilum Sacc. from Avena pubescens, sp. picridis Rostrup, sp. i^. — Fig. 64-66: Entyloma matricariae Rostrup, conidia of diffe- rent size SI. — Fig. 67: Resting spores of the same, -22. Fig. b8-69: Urocystis coral- loides Rostrup, hab.-J-, sp. -p. — Fig. 70: Uromyces scleranthi Rostrup, uredosp. ™ Fig. 71: Uredo glyceriae mihi -!^. q ^osfriip del
RMRDDAT4–. The fungi which cause plant disease . Plant diseases; Fungi. THE FUNGI WHICH CAUSE PLANT DISEASE 279. Fig. 208.- in section lasne. Diaporthe. C, asci. o B, stroma. After Tu- hyaline, appendaged or not; pa- raphyses none. Conidia=Phoma, Cytospora, etc. D. taleola (Fr.) Sacc. Stroma cortical, definite, de- pressed, pulvinate, 2-4 mm., cov- ered; perithecia few, 4-10, buried, their ostioles converging, erumpent in a small light-colored disk; asci cylindric, 120-140 x 10-12 ix, spores elliptic, uniseptate, constricted, with setaceous appendajges, 15-22 x 8-9/1. It causes canker on oak, killing t
![. The fungi which cause plant disease . Plant diseases; Fungi. THE FUNGI WHICH CAUSE PLANT DISEASE 549 C. carica S. & H/-"' «» Acervuli brown, becoming black, hemispherical, numerous, small, 85-250 m, bearing 1-12 (or often 0) long, slender, irregular setae which are dark throughout, acute, rigid, septate, 2-6 x 22- 106 IX, conidia regular, oblong, obtuse, 3.5-6.6 . 8.7-20; conidio- phores slender, 1-2 x 45 ;u, hyaline. It is the cause of a decay of figs in the United States. C. ampelinum Cav. is on grape leaves. C. glceosporioides Penz. Acervuli sparse or scarcely gregarious, subepi Stock Photo](https://c8.alamy.com/comp/RDE570/the-fungi-which-cause-plant-disease-plant-diseases-fungi-the-fungi-which-cause-plant-disease-549-c-carica-s-amp-h-quot-acervuli-brown-becoming-black-hemispherical-numerous-small-85-250-m-bearing-1-12-or-often-0-long-slender-irregular-setae-which-are-dark-throughout-acute-rigid-septate-2-6-x-22-106-ix-conidia-regular-oblong-obtuse-35-66-87-20-conidio-phores-slender-1-2-x-45-u-hyaline-it-is-the-cause-of-a-decay-of-figs-in-the-united-states-c-ampelinum-cav-is-on-grape-leaves-c-glceosporioides-penz-acervuli-sparse-or-scarcely-gregarious-subepi-RDE570.jpg ". The fungi which cause plant disease . Plant diseases; Fungi. THE FUNGI WHICH CAUSE PLANT DISEASE 549 C. carica S. & H/-"' «» Acervuli brown, becoming black, hemispherical, numerous, small, 85-250 m, bearing 1-12 (or often 0) long, slender, irregular setae which are dark throughout, acute, rigid, septate, 2-6 x 22- 106 IX, conidia regular, oblong, obtuse, 3.5-6.6 . 8.7-20; conidio- phores slender, 1-2 x 45 ;u, hyaline. It is the cause of a decay of figs in the United States. C. ampelinum Cav. is on grape leaves. C. glceosporioides Penz. Acervuli sparse or scarcely gregarious, subepi Stock Photo")
RMRDE570–. The fungi which cause plant disease . Plant diseases; Fungi. THE FUNGI WHICH CAUSE PLANT DISEASE 549 C. carica S. & H/-"' «» Acervuli brown, becoming black, hemispherical, numerous, small, 85-250 m, bearing 1-12 (or often 0) long, slender, irregular setae which are dark throughout, acute, rigid, septate, 2-6 x 22- 106 IX, conidia regular, oblong, obtuse, 3.5-6.6 . 8.7-20; conidio- phores slender, 1-2 x 45 ;u, hyaline. It is the cause of a decay of figs in the United States. C. ampelinum Cav. is on grape leaves. C. glceosporioides Penz. Acervuli sparse or scarcely gregarious, subepi
RMRDDAX1–. The fungi which cause plant disease . Plant diseases; Fungi. THE FUNGI WHICH CAUSE PLANT DISEASE 271 cylindric to broadly clavate, blunt, 45-55 x 9-10 n; spores curved, continuous, granular, 13-15 x 5-6 /i. Conidia (=Glceosporium psidii), acervuli subepidermal on defi- nite spots, 90-120 ju; conidiophores hyaline, cylindric, 15-18 x 4-5 ju; conidia elliptic, oval, hyaline, 10-13 x 4-6 /t. Artificial culture studies by Sheldon ^*'' ^* demonstrated the ascigerous stage. Extensive study was made of the growth on. FiQ. 200.—G. piperata, 99, perithecium external and in sec- tion. 100, asci in det
RMRGJGEG–. Bulletin of the British Museum (Natural History). Botany; Botany. Fig. 8 Parmelia durumae Krog & Swinscow, holotype (O). Rule = 1 cm. strongly maculate, thalline margin weakly dentate, ciliate, disc usually imperforate, becoming radially split with age, spores 22-26 x 12-15 jum. Pycnidia numerous, sub- marginal, conidia weakly sublageniform, 5-7 //m long. TLC: alectoronic acid, #-collatolic acid, atranorin. Type: Kenya. Coast Province, Kwale District, 2 km N of Gazi, 4° 22' S, 39° 30' E, at the edge of a mangrove, February 1974, Coll. H. Krog & T. D. V. Swinscow no. 3K 30/132, (O—hol
RMRH1MTA–. British fungus-flora. A classified text-book of mycology. Fungi -- Great Britain. 284 FUNG US-FLORA. Sclerotinia bulborum. Behm, Krypt.-Flora, Disc, p. 819; Sacc, Syll., viii. n. 802; Mass., in Gard. Chron., Aug. 11th, 1894, p. 1894, with fig. Ascophores 1-3 in number, springing from an irregular sclerotium which is at first white, then blackish externally,. Fig. 1, Sclerotinia bulborum, Relim, x 10 ;—Fig. 2, ascus and paraphysis of same, X 400;—Fig. 3, section of portion of a sclerotium, x 400;— Fig. 4, Botrytis form of the fungus, x 250;—Fig. 5, conidia of Botrytis stage, x 400. 8-12 mm. d
RMRDDB89–. The fungi which cause plant disease . Plant diseases; Fungi. 246 THE FUNGI WHICH CAUSE PLANT DISEASE. FiQ. 180.—M. sentina, Septona stage. Portion of a section through a pear leaf spot, showing e, e, epidermis; p, pali- sade cells sp, spongy parenchyma; o, S. piricola pycnidium, giving out spores, b. After Longyear. M. sentina (Fr.) Schr. Perithecia, 80-110 /i; on dead spots of leaves, the long ostiole erumpent; asci clavate, 60-75 x 11-13 fi, colorless; spores fusiform, curved or straight, 26-33 x Conidia (=Septoria piricola) borne in pycnidia which are similar in size and form to the perit
RMRGJH78–. Bulletin of the British Museum (Natural History). Botany; Botany. 56 D. L. HAWKSWORTH. 10/im Fig. 28 Phoma physciicola (W 1910/609—holotype). A, Vertical section of pycnidium. B, Conidiogenous cells and pycnidial wall. C, Surface view of pycnidial wall. D, Conidi- genous cells. E, Conidia. 5. Phoma physciicola Keissler, Hedwigia 50 : 294 (1911). (Fig. 28A-E) Type: Austria, Steiermark, Gams bei Hieflau, on Phvscia aipolia, June 1910, K. von Keissler (W 1910/609—holotype!). Icones: Keissler, Hedwigia 50:295 fig. la-c (1911).—Keissler, Rabenh. Krvpt.-Fl. 8:539 figs. 102-103(1930). Conidiomata p
RMRDHN1T–. British fungus-flora. A classified text-book of mycology. Fungi. 284 FUNG us-FLORA. Sclerotinia bulborum. Eehm, Krypt.-Flora, Disc, p. 819; Sacc, Syll., viii. n. 802; Mass., in Gard. Chron., Aug. 11th, 1894, p, 1894, with fig. Asoophores 1-3 in number, springing from an irregular eclerotium wliich is at first white, then blackish externally.. Fig. 1, Sclerotinia hulhormn, Eehm, x 10 ;âFig. 2, ascua and paraphysis â of same, x 400;âFig. 3, section of portion of a solerotium, x 400;â Fig. 4, Botrytis form of the fungus, x 250;âFig. 5, conidia of Botrytis stage, X 400. 8-12 mm. diameter; ascoph
RMRGJHR7–. Bulletin of the British Museum (Natural History). Botany; Botany. lOjim Fig. 6 Epicladonia sandstedei. A-C (IMI 240228); A, vertical section of pycnidial wall; B, conidiogenous cells; C, conidia. D (Krypt. Exs. Vindob. no. 1330/?, K), conidia. E-F (1 893. Harmand, Angers); E, conidiogenous cell; F, conidia. C. comma (L.) Hoffm., C. cyanipes (Sommerf.) Vainio, C. deformis (L.) Hoffm., C.fimbriata (L.) Fr. (incl. C. major (Hagen) Sandst.), C. grayi G. K. Merrill ex Sandst., C. ochrochlora Florke. C. plcurota (Florke) Schaerer, C. pyxidata (L.) Hoflrn., C. subulata (L.) Wigg., and C. turgida Eh
RMRDE6CT–. The fungi which cause plant disease . Plant diseases; Fungi. 162 THE FUNGI WHICH CAUSE PLANT DISEASE Ascocarps scattered on the leaf, shining black, up to 1 mm. long; asci clavate, 8-spored; spores nearly as long as the ascus, 90-120 X 1.5 M- Conidia cylindric, hyaline, continuous, 6-8 x 1 /t. L. brachysporum Rost. Perithecia epiphyllous; asci cylindric, short- stalked, apex rounded, 120 x 20-25 p., 8- spored; paraphyses bacillar, apex curved; spores oblong, l-rowed, hyaline, 28-30 x 9-10 /x. It is common on pine leaves.^ Several other species are parasitic upon various conifers, among them:
![. The fungi which cause plant disease . Plant diseases; Fungi. THE FUNGI WHICH CAUSE PLANT DISEASE 559 '' / / / Fig. 376.—P. funerea. A. Spores. B. A j'oung mycelium. C. Hypha of an older mycelium. After Reed. P. funerea Desm. Acervuli scattered, punctiform, blackish, subepidermal, erum- pent; stroma depressed, white; conidia oblong, fusoid, 5-celled, constricted at the septa, the three central cells fuscous, the others t j ^ a, hyaline, 22-32 x 6-8 m, with 2-5 "2 W/T recurved hyaline spines, 10-15 x 0.7-1 n; conidiophores short, 5-9 x 1-1.5 M- It is found on various conifers causing d Stock Photo](https://c8.alamy.com/comp/RDE55R/the-fungi-which-cause-plant-disease-plant-diseases-fungi-the-fungi-which-cause-plant-disease-559-fig-376p-funerea-a-spores-b-a-joung-mycelium-c-hypha-of-an-older-mycelium-after-reed-p-funerea-desm-acervuli-scattered-punctiform-blackish-subepidermal-erum-pent-stroma-depressed-white-conidia-oblong-fusoid-5-celled-constricted-at-the-septa-the-three-central-cells-fuscous-the-others-t-j-a-hyaline-22-32-x-6-8-m-with-2-5-quot2-wt-recurved-hyaline-spines-10-15-x-07-1-n-conidiophores-short-5-9-x-1-15-m-it-is-found-on-various-conifers-causing-d-RDE55R.jpg ". The fungi which cause plant disease . Plant diseases; Fungi. THE FUNGI WHICH CAUSE PLANT DISEASE 559 '' / / / Fig. 376.—P. funerea. A. Spores. B. A j'oung mycelium. C. Hypha of an older mycelium. After Reed. P. funerea Desm. Acervuli scattered, punctiform, blackish, subepidermal, erum- pent; stroma depressed, white; conidia oblong, fusoid, 5-celled, constricted at the septa, the three central cells fuscous, the others t j ^ a, hyaline, 22-32 x 6-8 m, with 2-5 "2 W/T recurved hyaline spines, 10-15 x 0.7-1 n; conidiophores short, 5-9 x 1-1.5 M- It is found on various conifers causing d Stock Photo")
RMRDE55R–. The fungi which cause plant disease . Plant diseases; Fungi. THE FUNGI WHICH CAUSE PLANT DISEASE 559 '' / / / Fig. 376.—P. funerea. A. Spores. B. A j'oung mycelium. C. Hypha of an older mycelium. After Reed. P. funerea Desm. Acervuli scattered, punctiform, blackish, subepidermal, erum- pent; stroma depressed, white; conidia oblong, fusoid, 5-celled, constricted at the septa, the three central cells fuscous, the others t j ^ a, hyaline, 22-32 x 6-8 m, with 2-5 "2 W/T recurved hyaline spines, 10-15 x 0.7-1 n; conidiophores short, 5-9 x 1-1.5 M- It is found on various conifers causing d
RMRPY13D–. Hawaiian Fungi. Fungi. Stevens—Hawaiian Fungi 155 No. 365. Cercospora megalopotamica Speg. Fung. Arg. Pug. 3, no. 342, 1881 On Bidens leucantha. Hawaii: Kukuihaele, August 2, no. 1100. No. 366. Cercospora nicotianae Ell. and Ev. Proc. Acad. Sc. Phil, p 170, 1893 On Nicotiana tabacum (cult.). Hawaii: Kealakekua, July 22, no. 925. No. 367. Cercospora pipturi Stevens and Glick n. sp. Spots hypophyllous, diffuse, indefinite, fuscous, 2-5 /* in diameter. Conidiophores long, lax, fasciculate from the stomata, branched, septate, straw-colored; conidia obclavate, 4-7 septate, 40-100 by 5-8/*, slight
RMRGW25G–. Bulletin. Natural history; Natural history. 240 Illinois Natural HisTom- Survey Bulletin Vol. 31, Art. 6 length. Wiien single conidia were tran.s- ferred from the.se plates to PDA slants after 10 days, more than 90 percent gae rise to established colonies. Greenhouse Studies Soil Drenches.—When benomyl, TBZ, Vitavax, and Bravo-6F were ap-. Fig. 17.—Filter paper disc bioassay of four fungicides for the control of V. albo-atrum illustrating zones of inhibition outward from filter discs. A) Benomyl. B) Thiabendazole. C) Bravo-6F. D) Vitavax (l=10Mg/mI; 2=100 Mg/ml; 3 = 500 /i^g/ml; 4=1,000 Mg/
RMRH9RW3–. Botanische Untersuchungen ber einige in Java vorkommende Pilze, besonders ber Bltter bewohnende, parasitisch auftretende Arten. Fungi -- Indonesia Java; Phytopathogenic fungi -- Indonesia Java. IV. T u be r c u 1 ar iace ae — dema- t i e a e — P h r a g m o s p o r a e. I'picoc'ciiiu javuiiicuiu Koord. Sporodo- chium convexum, plectenchymaticum, hypophyllum, 50—(U) ^ diam., fuligi- ncum. Conidia in conidiopliororum simpli- cium (fuscescentium) dense fasciculatorum apice acrogcna, oblonga v. globosa-oblonga, continua vel 1-septata vel murali-divisa LI — lüX^—13 l^^^ fuscis, exosporio minute
RMRGKAFA–. Bulletin of the British Museum (Natural History). Botany; Botany. 204 H. KROG & T. D. V. SWINSCOW. Fig. 22 Parmelia poolii Dodge, 2K6/115 (O). Rule = 1 cm. marginal soralia on involute lobes, abundant laminal soralia, a pale, mottled marginal zone on the underside, and abundant cilia which produce a purple pigment never seen in East African material. No conidia were found in the type specimens, but a specimen from Sri Lanka, Pidurutalagala, 12 January 1972, Dahl (O), corresponding to the type in every respect, produced rod-shaped conidia c. 6 fim long. We doubt whether P. rampoddensis oc
RMREEPG7–. Comparative morphology of Fungi. Fungi. d$*s* Fig. 344.—Exidia repanda. 1. a, tip of mature sterigma with reniform basidiospore; b, germination of basidiospore with falcate conidia. 2. Exidia saccharina, var. foliacea. (Ulocolla foliacea). b, germinating basidiospore; c, germinating conidia. Tremella lutes- cens. 3. Mature basidium. 4. Germinating basidiospores, one surrounded by sprout cells. 5. Sprout mycelium. 6. Sprout cells developing hyphae. 7. Conidiophores. Ditangium Cerasi (Orbilia rubella). 8. Conidiophore. (la, 3 X 450; 16, 5, 6 X 500; 1 c, 7 X 420; 2 X 320; 4 X 400; 8 X 300; afte
![. The fungi which cause plant disease . Plant diseases; Fungi. 628 THE FUNGI WHICH CAUSE PLANT DISEASE C. apii Fr. Spots amphigenous, subcircular, pale-brown, 4-6 mm. in diame- ter, with a more or less definite elevated margin; conidiophores hy- pophylous, light-brown, fasciculate, con- tinuous or 1 or 2-septate, subundulate, 40-60 X 4-5 n; conidia hyaline obclavate, or almost cylindric, 3 to 10-septate, slen- der, 50-80 xi II. A serious leaf spot is produced on celery, parsnips, etc.'^""'^^ C. beticola Sacc."' ^sa Spots amphigenous, brownish, purple- bordered, becoming ashy cen Stock Photo](https://c8.alamy.com/comp/RDE4XA/the-fungi-which-cause-plant-disease-plant-diseases-fungi-628-the-fungi-which-cause-plant-disease-c-apii-fr-spots-amphigenous-subcircular-pale-brown-4-6-mm-in-diame-ter-with-a-more-or-less-definite-elevated-margin-conidiophores-hy-pophylous-light-brown-fasciculate-con-tinuous-or-1-or-2-septate-subundulate-40-60-x-4-5-n-conidia-hyaline-obclavate-or-almost-cylindric-3-to-10-septate-slen-der-50-80-xi-ii-a-serious-leaf-spot-is-produced-on-celery-parsnips-etcquotquot-c-beticola-saccquot-sa-spots-amphigenous-brownish-purple-bordered-becoming-ashy-cen-RDE4XA.jpg ". The fungi which cause plant disease . Plant diseases; Fungi. 628 THE FUNGI WHICH CAUSE PLANT DISEASE C. apii Fr. Spots amphigenous, subcircular, pale-brown, 4-6 mm. in diame- ter, with a more or less definite elevated margin; conidiophores hy- pophylous, light-brown, fasciculate, con- tinuous or 1 or 2-septate, subundulate, 40-60 X 4-5 n; conidia hyaline obclavate, or almost cylindric, 3 to 10-septate, slen- der, 50-80 xi II. A serious leaf spot is produced on celery, parsnips, etc.'^""'^^ C. beticola Sacc."' ^sa Spots amphigenous, brownish, purple- bordered, becoming ashy cen Stock Photo")
RMRDE4XA–. The fungi which cause plant disease . Plant diseases; Fungi. 628 THE FUNGI WHICH CAUSE PLANT DISEASE C. apii Fr. Spots amphigenous, subcircular, pale-brown, 4-6 mm. in diame- ter, with a more or less definite elevated margin; conidiophores hy- pophylous, light-brown, fasciculate, con- tinuous or 1 or 2-septate, subundulate, 40-60 X 4-5 n; conidia hyaline obclavate, or almost cylindric, 3 to 10-septate, slen- der, 50-80 xi II. A serious leaf spot is produced on celery, parsnips, etc.'^""'^^ C. beticola Sacc."' ^sa Spots amphigenous, brownish, purple- bordered, becoming ashy cen
![. Diseases of truck crops and their control . Vegetables. PIG 2 STRUCTURE OF FUNGI. â. Fâitin. branch °^â^«,t""rvtS conidiopboies a/"i^â^X dual <=P^^^°}'^^Zl o£ Pemcillium, 5: .^f '"f penicaiium, d. two and chain o£ conidia oi r attachment cSSidia of P«?«^lSSiâr° firtUization of o£ spores jn the cnain, anthendium, /â female oo6°'""°^â'S^Sng stSks of Rh.zo- mature oospore, g. iâ¢;?!"; v.ad of Rhizo- putr individual frmtmghef^^jj.^^.^^ |Ss showing sP°5:i;Jiopus showing spores. Indfc. i»ye9SP°«^°^^âE a?ci and ascospor». ;. perithecwm, showin^ Stock Photo](https://c8.alamy.com/comp/RDERFX/diseases-of-truck-crops-and-their-control-vegetables-pig-2-structure-of-fungi-fitin-branch-tquotquotrvts-conidiopboies-aquotix-dual-lt=pzl-o-pemcillium-5-f-quotf-penicaiium-d-two-and-chain-o-conidia-oi-r-attachment-cssidia-of-plssir-firtuization-of-o-spores-jn-the-cnain-anthendium-female-oo6quotquotssng-stsks-of-rhzo-mature-oospore-g-i!quot-vad-of-rhizo-putr-individual-frmtmghefjj-ss-showing-sp5ijiopus-showing-spores-indfc-iye9spe-aci-and-ascospor-perithecwm-showin-RDERFX.jpg ". Diseases of truck crops and their control . Vegetables. PIG 2 STRUCTURE OF FUNGI. â. Fâitin. branch °^â^«,t""rvtS conidiopboies a/"i^â^X dual <=P^^^°}'^^Zl o£ Pemcillium, 5: .^f '"f penicaiium, d. two and chain o£ conidia oi r attachment cSSidia of P«?«^lSSiâr° firtUization of o£ spores jn the cnain, anthendium, /â female oo6°'""°^â'S^Sng stSks of Rh.zo- mature oospore, g. iâ¢;?!"; v.ad of Rhizo- putr individual frmtmghef^^jj.^^.^^ |Ss showing sP°5:i;Jiopus showing spores. Indfc. i»ye9SP°«^°^^âE a?ci and ascospor». ;. perithecwm, showin^ Stock Photo")
RMRDERFX–. Diseases of truck crops and their control . Vegetables. PIG 2 STRUCTURE OF FUNGI. â. Fâitin. branch °^â^«,t""rvtS conidiopboies a/"i^â^X dual <=P^^^°}'^^Zl o£ Pemcillium, 5: .^f '"f penicaiium, d. two and chain o£ conidia oi r attachment cSSidia of P«?«^lSSiâr° firtUization of o£ spores jn the cnain, anthendium, /â female oo6°'""°^â'S^Sng stSks of Rh.zo- mature oospore, g. iâ¢;?!"; v.ad of Rhizo- putr individual frmtmghef^^jj.^^.^^ |Ss showing sP°5:i;Jiopus showing spores. Indfc. i»ye9SP°«^°^^âE a?ci and ascospor». ;. perithecwm, showin^
RMRGKC51–. Bulletin of the British Museum (Natural History) Botany. 230 D. L. HAWKSWORTH. Fig. 22 Hansfordiellopsis variegata (IMI 4778c—holotype). A, Conidia. B, Conidiogenous cells and mycelium with hyphopodia-like cells. C, Conidium in a very early stage of formation. scar, 18-20x3-5-5 urn. Conidia solitary, dry, acrogenous, obclavate, smooth-walled, 3^4(—5) septate, portion excluding the terminal cell 12-15x3-5-5 urn, brown, basal cell truncated with a scar 1-1 -5 urn wide, apical cell markedly elongated, subhyaline, mainly 10-12 urn long but variable in length, tapering to 1-2 urn wide near the ap
![. Comparative morphology of Fungi. Fungi. CI f^ ktfuj 'â¢'â â '/â â "" »;,*;..- f'* *.. â â "â Mi &$j i&-:^ â m .*»â¢â¢â -V ivS- :£>;;: v& *w*. ⢠/ fi ift i! ?4; â M | ft :.;-^ J" â .'****.: 'â i':**',' :â " i t -â : *" r*-*' â¢' Y â -l r<^-... W-. Fig. 123.âSphacrotheca Humuli. Development of conidiophore. (X830; after Foex, 1913.) conidia are cut off singly, in the ectoparasitic forms they arise in chains (Foex, 1912, 1913; Bezsonov, 1913). In the first type, Leveillula taurica (Fig. 122), the hyphae collect in the substomatal cavity to Stock Photo](https://c8.alamy.com/comp/REF8EM/comparative-morphology-of-fungi-fungi-ci-f-ktfuj-quotquot-f-quot-mi-ampj-iamp-m-v-ivs-gt-vamp-w-fi-ift-i!-4-m-ft-jquot-i-quot-i-t-quot-r-y-l-rlt-w-fig-123sphacrotheca-humuli-development-of-conidiophore-x830-after-foex-1913-conidia-are-cut-off-singly-in-the-ectoparasitic-forms-they-arise-in-chains-foex-1912-1913-bezsonov-1913-in-the-first-type-leveillula-taurica-fig-122-the-hyphae-collect-in-the-substomatal-cavity-to-REF8EM.jpg ". Comparative morphology of Fungi. Fungi. CI f^ ktfuj 'â¢'â â '/â â "" »;,*;..- f'* *.. â â "â Mi &$j i&-:^ â m .*»â¢â¢â -V ivS- :£>;;: v& *w*. ⢠/ fi ift i! ?4; â M | ft :.;-^ J" â .'****.: 'â i':**',' :â " i t -â : *" r*-*' â¢' Y â -l r<^-... W-. Fig. 123.âSphacrotheca Humuli. Development of conidiophore. (X830; after Foex, 1913.) conidia are cut off singly, in the ectoparasitic forms they arise in chains (Foex, 1912, 1913; Bezsonov, 1913). In the first type, Leveillula taurica (Fig. 122), the hyphae collect in the substomatal cavity to Stock Photo")
RMREF8EM–. Comparative morphology of Fungi. Fungi. CI f^ ktfuj 'â¢'â â '/â â "" »;,*;..- f'* *.. â â "â Mi &$j i&-:^ â m .*»â¢â¢â -V ivS- :£>;;: v& *w*. ⢠/ fi ift i! ?4; â M | ft :.;-^ J" â .'****.: 'â i':**',' :â " i t -â : *" r*-*' â¢' Y â -l r<^-... W-. Fig. 123.âSphacrotheca Humuli. Development of conidiophore. (X830; after Foex, 1913.) conidia are cut off singly, in the ectoparasitic forms they arise in chains (Foex, 1912, 1913; Bezsonov, 1913). In the first type, Leveillula taurica (Fig. 122), the hyphae collect in the substomatal cavity to
RMRH9T5A–. Botanische Untersuchungen ber einige in Java vorkommende Pilze, besonders ber Bltter bewohnende, parasitisch auftretende Arten. Fungi -- Indonesia Java; Phytopathogenic fungi -- Indonesia Java. :233 BOTANISCHE ÜNTEESUCHUNGEN, U.S.W. auch zu Veniuria gestellt werden könnte). Reinculturen und Infec- tionsversuclie liefen für diese auf Ficus elastica vorkommenden Pilze noch nicht vor (Abbild. 42).. in. L) e m a t i a c e a e - P li r a g ni o s p 0 r e a e. Clasteros[)orium Elasticae Koord. n. sp. — Hjphae repentes sapro- genae, hinc inde conidia oblonga, fusca, -4—5-septata, 40—45 X G—9 /x ger
RMRFCBN3–. Recent research on foliage diseases : conference proceedings : Carlisle, Pennsylvania, May 29-June 2, 1989. Leaves Diseases and pests United States Congresses. Table 1.âSeasonal conidia production of Dothistroma septospora Period of the highest conidial production Period of Conidial production / -.200 Date of Stromata producing Degree of collection conidia conidial production3' % Dec. 14, 1982 0 25 0 Jan. 13, 1983 0 27 0 Feb. 19 0 Mar. 5 0 21 0 Apr. 2 45 + ++ 23 60 + ++ May 2 25 + 20 100 ++ June 4 100 ++ 21 100 H -+ July 4 100 + ++ 18 50 H h+ Aug. 1 25 + 16 0 Sept. 3 0 19 0 Dec. 14, 1
RMRF3T5G–. Recent research on foliage diseases : conference proceedings : Carlisle, Pennsylvania, May 29-June 2, 1989. Leaves Diseases and pests United States Congresses. Table 1.âSeasonal conidia production of Dothistroma septospora Period of the highest conidial production Period of Conidial production / -.200 Date of Stromata producing Degree of collection conidia conidial production3' % Dec. 14, 1982 0 25 0 Jan. 13, 1983 0 27 0 Feb. 19 0 Mar. 5 0 21 0 Apr. 2 45 + ++ 23 60 + ++ May 2 25 + 20 100 ++ June 4 100 ++ 21 100 H -+ July 4 100 + ++ 18 50 H h+ Aug. 1 25 + 16 0 Sept. 3 0 19 0 Dec. 14, 1
RMRPY176–. Hawaiian Fungi. Fungi. Stevens—Hawaiian Fungi 141 spots gray or white, 0.5-2 mm. in diameter; margin raised, pycnidia epi- phyllous, 35-80[x in diameter; conidia few-septate. 124. RHABDOSPORA Mont, in Fl. Alg. Bot. p. 592. Emend. Sacc. Mich. vol. 2, p. 26, 1880 No. 301. Rhabdospora pittospori Stevens & Young n. sp. Pycnidia numerous, black, 400-800 /* in diameter, ostiole large. Conidia abundant, filiform, hyaline, straight or curved, obtuse, 1 to few-septate, 12-22 by 21*, conidio- phores 15-18 M long. On dead capsules of Pittosporum sp. collected by C. N. Forbes, no. 21. Hawaii: Kona,
RMRH9T4N–. Botanische Untersuchungen ber einige in Java vorkommende Pilze, besonders ber Bltter bewohnende, parasitisch auftretende Arten. Fungi -- Indonesia Java; Phytopathogenic fungi -- Indonesia Java. in. L) e m a t i a c e a e - P li r a g ni o s p 0 r e a e. Clasteros[)orium Elasticae Koord. n. sp. — Hjphae repentes sapro- genae, hinc inde conidia oblonga, fusca, -4—5-septata, 40—45 X G—9 /x gereutes. Auf der Rinde eines absiiestorbe- nen Zweiges von Ficus elastica bei Purworedjo (-Kedu) im J. 1905 von mir gesammelt (N°. 174 Serie 12). Das Mvcel ist o-elbbraun. Die XJ O Abbild. 43. — ciasteron^or
RMRGW16H–. Bulletin. Natural history; Natural history. June, 1955 Curl: Oak Wilt Inocula 313 Table 17.—Average number per mat sample* and per cent germination of conidia taken from mycelial mats of Endoconidiopkora jagacearum in five condition classesf in five study areas in the 10-month period October, 1952, through July, 1953. Class I Class II Class III Class IV Class V Study Area Si2 U iJ ^ o c a. h (U .- -Q re Z 0 JO O h Z o u 1) ^ O Z^ Z o ^ o Z^ h z^ ^ o P CI. z^ Chicago. . Sinnissippi. Rockford. Peoria Havana... 11 12 14 20 15 144,782 335,842 500,011 289,698 481,860 51 49 51 51 53 16 14 17 11 5
RMRCCK99–. Diseases of truck crops and their control. Plants -- Diseases. Fig. 70. Celery Diseases. a. Cercospora leaf spot, h. conidiophores and conidia of Cercospo (afterDuggar and Baily), c. Rhizoctonia root rot.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Taubenhaus, Jacob Joseph. New York, Dutton
RMRCCKAY–. Diseases of truck crops and their control. Vegetables. Fig. 70. Celery Diseases. a. Cercospora leaf spot, b. conidiophores and conidia of Cercospora apii (afterDuggar and Baily), c. Rhizoctonia root rot.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Taubenhaus, J. J. (Jacob Joseph), 1885-. New York, E. P. Dutton & company
RMRCCKCY–. Diseases of truck crops and their control. Plants -- Diseases. Fig. 37. Turnip Disease. a. Macrosporium leaf spot, h. Macrosporium hercuUum, showing conidiophores and conidia, c. individual conidium of M. herculeum {a. to c. after F. C. Stewart).. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Taubenhaus, Jacob Joseph. New York, Dutton
RMRCD98J–. Diseases of cultivated plants and trees. Plant diseases; Plants -- Wounds and injuries; Plants, Protection of; Trees -- Diseases and pests. i8o DISEASES OF CULTIVATED PLANTS Distinguished by the soft—not carbonaceous, highly- coloured perithecia. Winter rot of potatoes.—Probably the most destructive disease attacking stored potatoes, where it is practically always present to some extent. The most usual symptom of the presence of the fungus is the gradual sinking and wrinkling of the surface of the tuber. These sunken places soon become sprinkled over with small, snow-white tufts of a conidia
RMRCC3XG–. Diseases of plants induced by cryptogamic parasites; introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae. Plant diseases; Parasitic plants; Fungi. CYSTOPUS. 127 observed on Cfqjsella may be summarized here: the fungus attacks all parts above ground, and causes enlargement of parenchymatous cells ; it forms only conidia; formation of chlorophyll is increased; the formation of interfasci- cular cambium is diminished or altogether suppressed ; the intrafascicular cambium retains its activity longer; accessory vascular bundles make their appearance ; c.stopu. pomaac
RMRCD99X–. Diseases of cultivated plants and trees. Plant diseases; Plants -- Wounds and injuries; Plants, Protection of; Trees -- Diseases and pests. 158 DISEASES OF CULTIVATED PLANTS is somewhat erratic in its appearance, and during certain seasons it covers both surfaces of the leaves of gooseberries with a delicate greyish-white mildew. Less frequently the fruit is also attacked. When the mycelium is well established on the leaf, it becomes covered with a mass of conidia, giving to it a mealy appearance. The ascigerous condition is usually produced in abundance later in the. KiG. ^o.—Microsphaera ^
RMRCC332–. Diseases of plants induced by cryptogamuc parasites; introduction to the study of pathogenic fungi, slime-fungi, bacteria, and algae. English ed. by William G. Smith. Plant diseases; Parasitic plants. CL'CLItBlTAKlA. 209 unicellular conidia, at first white, later grey. It is these pycnidia which cause the fine perforations of the periderm of twigs. Yet another form of pycnidia, previously known as Dipludia cytisi (Awd.), (Xo. 4). This, like the last, breaks through the corky layers of the bark. It has a peridiuni composed of loose pseudoparenchyma and, without the intervention of conidio- ph
![. Diseases of plants induced by cryptogamic parasites; introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae. Plant diseases; Parasitic plants; Fungi. CLAVICEPS. 193 conidiophores. A very sweet tluid, the so-called "honey-dew," is separated from the sphacelia; this attracts insects, which carry the conidia to other flowers. Since the conidia are capable of immediate germination, and give rise to a mycelium which penetrates through the outer coat of the ovary, the disease can be quickly disseminated during the flowering season of the grasses. After the form Stock Photo](https://c8.alamy.com/comp/RCC3PG/diseases-of-plants-induced-by-cryptogamic-parasites-introduction-to-the-study-of-pathogenic-fungi-slime-fungi-bacteria-amp-algae-plant-diseases-parasitic-plants-fungi-claviceps-193-conidiophores-a-very-sweet-tluid-the-so-called-quothoney-dewquot-is-separated-from-the-sphacelia-this-attracts-insects-which-carry-the-conidia-to-other-flowers-since-the-conidia-are-capable-of-immediate-germination-and-give-rise-to-a-mycelium-which-penetrates-through-the-outer-coat-of-the-ovary-the-disease-can-be-quickly-disseminated-during-the-flowering-season-of-the-grasses-after-the-form-RCC3PG.jpg ". Diseases of plants induced by cryptogamic parasites; introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae. Plant diseases; Parasitic plants; Fungi. CLAVICEPS. 193 conidiophores. A very sweet tluid, the so-called "honey-dew," is separated from the sphacelia; this attracts insects, which carry the conidia to other flowers. Since the conidia are capable of immediate germination, and give rise to a mycelium which penetrates through the outer coat of the ovary, the disease can be quickly disseminated during the flowering season of the grasses. After the form Stock Photo")
RMRCC3PG–. Diseases of plants induced by cryptogamic parasites; introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae. Plant diseases; Parasitic plants; Fungi. CLAVICEPS. 193 conidiophores. A very sweet tluid, the so-called "honey-dew," is separated from the sphacelia; this attracts insects, which carry the conidia to other flowers. Since the conidia are capable of immediate germination, and give rise to a mycelium which penetrates through the outer coat of the ovary, the disease can be quickly disseminated during the flowering season of the grasses. After the form
RMRCD6F7–. Diseases of plants induced by cryptogamic parasites; introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae. Plant diseases; Parasitic plants; Fungi. CYSTOPUS. 127 observed on Crqisella may be summarized here: the fungus attacks all parts above ground, and causes enlargement of parenchymatous cells ; it forms only conidia; formation of chlorophyll is increased; the formation of interfasci- cular cambium is diminished or altogether suppressed ; the intrafascicular cambium retains its activity longer; accessory vascular bundles make their appearance ; cX^v^^^i^^^^'^^
RMRCD6A7–. Diseases of plants induced by cryptogamic parasites; introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae. Plant diseases; Parasitic plants; Fungi. RHYTISMA. 245 eight needle-shaped unicellular spores; pycnidia (spermogonia) with little unicellular conidia are also formed. The fungus attacks leaves of sycamore {Acer Fseudoplatanus), the black spots making their appearance in September. The apothecia ripen on the ground during the following summer.^. Please note that these images are extracted from scanned page images that may have been digitally enhanced for read
RMRCC3CH–. Diseases of plants induced by cryptogamic parasites; introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae. Plant diseases; Parasitic plants; Fungi. Fig. •IbT.—Exohasidium vaccinii. The basidial ayer Is shown developing from the intercellular nycelium of the shoots. (After Woronin.) ^f^. Fio. 258.—Exobasidium vaccinii. Germinating basidiospores. The septate spores have given off germ-tubes which penetrate into the cowberry leaves, either by stomata or through the epidermis. The lowest spore is forming conidia. (After Woronin.) This Exobasiclium is very common on t
![. Diseases of plants induced by cryptogamuc parasites; introduction to the study of pathogenic fungi, slime-fungi, bacteria, and algae. English ed. by William G. Smith. Plant diseases; Parasitic plants. CLAVICEPS. 193 conidiophores. A very sweet fluid, the so-called " houey-dew," is separated from the sphacelia; this attracts insects, which carry the conidia to other flowers. Since the conidia are capable of immediate germination, and give rise to a mycelium which penetrates through the outer coat of the ovary, the disease can be quickly disseminated during the flowering season of th Stock Photo](https://c8.alamy.com/comp/RCC33R/diseases-of-plants-induced-by-cryptogamuc-parasites-introduction-to-the-study-of-pathogenic-fungi-slime-fungi-bacteria-and-algae-english-ed-by-william-g-smith-plant-diseases-parasitic-plants-claviceps-193-conidiophores-a-very-sweet-fluid-the-so-called-quot-houey-dewquot-is-separated-from-the-sphacelia-this-attracts-insects-which-carry-the-conidia-to-other-flowers-since-the-conidia-are-capable-of-immediate-germination-and-give-rise-to-a-mycelium-which-penetrates-through-the-outer-coat-of-the-ovary-the-disease-can-be-quickly-disseminated-during-the-flowering-season-of-th-RCC33R.jpg ". Diseases of plants induced by cryptogamuc parasites; introduction to the study of pathogenic fungi, slime-fungi, bacteria, and algae. English ed. by William G. Smith. Plant diseases; Parasitic plants. CLAVICEPS. 193 conidiophores. A very sweet fluid, the so-called " houey-dew," is separated from the sphacelia; this attracts insects, which carry the conidia to other flowers. Since the conidia are capable of immediate germination, and give rise to a mycelium which penetrates through the outer coat of the ovary, the disease can be quickly disseminated during the flowering season of th Stock Photo")
RMRCC33R–. Diseases of plants induced by cryptogamuc parasites; introduction to the study of pathogenic fungi, slime-fungi, bacteria, and algae. English ed. by William G. Smith. Plant diseases; Parasitic plants. CLAVICEPS. 193 conidiophores. A very sweet fluid, the so-called " houey-dew," is separated from the sphacelia; this attracts insects, which carry the conidia to other flowers. Since the conidia are capable of immediate germination, and give rise to a mycelium which penetrates through the outer coat of the ovary, the disease can be quickly disseminated during the flowering season of th
RMRCD92D–. Diseases of crop-plants in the Lesser Antilles. Tropical plants; Plant diseases. 304 DISEASES OF CROP-PLANTS death. Johnston and Stevenson attribute some importance to the infestation of cuttings. Description. The first external sign of the occurrence of the fungus is a. Fig. 122 Thielaviopsis paradoxa, Sporophores of Micro- and Macro-conidia From Wakker & Went browning of the surface, which is accompanied by souring and reddening of the interior tissues. Numerous small pustules appear just beneath the rind. The pustules open and from each is extruded a black thread which under some cond
RMRCC3XY–. Diseases of plants induced by cryptogamic parasites; introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae. Plant diseases; Parasitic plants; Fungi. CYSTOPUS. 123 Cystopus (Albugo). The mycelium is branched and grows between the cells of living plants, obtaining its nourishment by means of haustoria. The conidial cushions rupture the epidermis of the host. The conidia or sporangia are smooth-coated, and are produced acropetally in chains on short stalks from which they fall off separately when ripe. The sporangia germinate and discharge. Fig. 33.—CyUopaa lilaiits
RMRCD9F5–. Diseases of cultivated plants and trees. Plant diseases; Plants -- Wounds and injuries; Plants, Protection of; Trees -- Diseases and pests. Fig. 16.—Lentiniis cyathus, an agaric springing from a sclerotium ; the latter shown in section. One-sixth nat. size. conidial phases of the groups previously enumerated. Large numbers of these are amongst the most destructive of parasites. Although spores, in the wider sense of the term, are the most general forms of reproduction, conidia or summer-. Please note that these images are extracted from scanned page images that may have been digitally enhanc
RMRCC3K2–. Diseases of plants induced by cryptogamic parasites; introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae. Plant diseases; Parasitic plants; Fungi. RHYTISMA. 245 eight needle-shaped uniceUular spores; pycnidia (spermogonia) with little unicellular conidia are also formed. The fungus attacks leaves of sycamore (Acer Pseudoplatanus), the black spots making their appearance in September. The apothecia ripen on the ground during the following summer.^. Please note that these images are extracted from scanned page images that may have been digitally enhanced for reada
RMRCC3BN–. Diseases of plants induced by cryptogamic parasites; introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae. Plant diseases; Parasitic plants; Fungi. POLYPOIIUS. *445 surface, and a smooth yellowish hymenial surface. They are large and fiat, the thickest part being at their insertion (Fig. 277). Several frequently occur on the same stem, especially if wounds or frost injuries are present. The spores are brown and roundish. Conidia are said, by Schroeter, to be formed on the upper surface of the sporophores. This species is a deadly enemy of fruit-trees, especially
RMRCD6FC–. Diseases of plants induced by cryptogamic parasites; introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae. Plant diseases; Parasitic plants; Fungi. CYSTOPUS. 123 Cystopus (Albugo). The mycelium is branched and grows between the cells of living plants, obtaining its nourishment by means of haustoria. The conidial cushions rupture the epidermis of the host. The conidia or sporangia are smooth-coated, and are produced acropetally in chains on short stalks from which they fall off separately when ripe. The sporangia germinate and discharge. Fig. 33.—Costopi'.s candid
RMRCD6F9–. Diseases of plants induced by cryptogamic parasites; introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae. Plant diseases; Parasitic plants; Fungi. CYSTOPUS. 125 Besides conidia, spherical oospores may also be present ; these are generally produced on the stems of the host-plant, but also on Hower-stalks and ovary-walls. The spherical conidia arise in simple chains on short coni- diophores, and are loosely connected by tiny intermediate cells. The conidial cushions rupture the epidermis and the ripe conidia fall oft' to produce biciliate swarming cells (Fig. 34).
RMRCC2GT–. Diseases of plants induced by cryptogamuc parasites; introduction to the study of pathogenic fungi, slime-fungi, bacteria, and algae. English ed. by William G. Smith. Plant diseases; Parasitic plants. Fig. 301.—PestalozzUi Hariigii. Young Spruce Fig. 308.—Peslalozzia Hartlgii. Conidia and coni- showing constriction just over the surface of the diophores on part of stroma. (After v. Tubeuf.) soil. (After v. Tubeuf.). Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may
RMRCC308–. Diseases of plants induced by cryptogamuc parasites; introduction to the study of pathogenic fungi, slime-fungi, bacteria, and algae. English ed. by William G. Smith. Plant diseases; Parasitic plants. 280 USTILAGINEAK. in a yeast-like manner, but on exhaustion of the nutritive materials, the primary conidia, and even the constituent cells of the promycelium, give off germ-tubes. Conidia are never found on the maize-plant itself, but Brefeld's investigations have demonstrated their production on dung-cultures, so that conidia may possibly be produced on manure-heaps or manured soil, and young
RMRCC2YX–. Diseases of plants induced by cryptogamuc parasites; introduction to the study of pathogenic fungi, slime-fungi, bacteria, and algae. English ed. by William G. Smith. Plant diseases; Parasitic plants. USTILAGO. 295 sisting of three or four cells with conidia, and sometimes secondary conidia. Coalescence of conidia may take place, and thereafter production of little mycelial threads. In nutritive solutions everything proceeds more luxuriantly, and conidia are produced in lan^^e numbers; they are easily detached and sprout. Please note that these images are extracted from scanned page images t
RMRCC3GP–. Diseases of plants induced by cryptogamic parasites; introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae. Plant diseases; Parasitic plants; Fungi. U.STILAC40. 295 sisting of three or four cells with coiiidia, and sometimes secondary conidia. Coalescence of conidia may take place, and thereafter production of little mycelial threads. In nutritive solutions everything proceeds more luxuriantly, and conidia are produced in large numbers; they are easily detached and sprout. Fio. 161.—Ustilago tragopogoiiis. Plants of I'mgopogon in flower and fruit— 1, normal fruit;
RMRCC3HM–. Diseases of plants induced by cryptogamic parasites; introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae. Plant diseases; Parasitic plants; Fungi. 476 FUNGI IMI'ERFECTI. of the shoots, and eitlier rupture tlie epidermis or grow out from the leaf-scar cushions (Fig. 297). The conidia are abjointed from filamentous conidiophores inside the pyenidia, and emerge as tendril-like structures. They are two-celled, small, cylindrical, and pointed at both ends. Germination takes place easily in water, and the disease spreads rapidly over the young developing shoots during
RMRCC2HR–. Diseases of plants induced by cryptogamuc parasites; introduction to the study of pathogenic fungi, slime-fungi, bacteria, and algae. English ed. by William G. Smith. Plant diseases; Parasitic plants. POLYPORUS. 445 surface, and a smooth yellowisli liyinenial siiiface. Tliey are large and Jiat, the thickest part being at their insertion (Fig. 277). Several frequently occur on the same stem, especially if wounds or frost injuries are present. The spores are brown and roundish. Conidia are said, by Schroeter, to be formed on the upper surface of the sporophores. This species is a deadly enemy
RMRCC3B2–. Diseases of plants induced by cryptogamic parasites; introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae. Plant diseases; Parasitic plants; Fungi. 476 FUNGI IMl'KRFECTI. of the shoots, and either rupture the ei)i(lerinis or grow out from the leaf-scar cushions (Fig. 297). The conidia are abjointed from filamentous conidiophores inside the pycnidia, and emerge as tendril-like structures. They are two-celled, small, cylindrical, and pointed at both ends. Germination takes place easily in water, and the disease spreads rapidly over the young developing shoots durin
![. Diseases of plants induced by cryptogamic parasites; introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae. Plant diseases; Parasitic plants; Fungi. SCLEROTINIA. 259 cowberry shoots, the stomata being always avoided. In less than three weeks conidia are produced. The mode in which the germ-tubes attack the host-plant is very remarkable. Woronin says: " The germ-tubes developed from the ascospores grow inwards tow^ards the vascular bundles of the host-plant and enter them; then they continue to develop, but now in the opposite direction from the interior of th Stock Photo](https://c8.alamy.com/comp/RCD6A0/diseases-of-plants-induced-by-cryptogamic-parasites-introduction-to-the-study-of-pathogenic-fungi-slime-fungi-bacteria-amp-algae-plant-diseases-parasitic-plants-fungi-sclerotinia-259-cowberry-shoots-the-stomata-being-always-avoided-in-less-than-three-weeks-conidia-are-produced-the-mode-in-which-the-germ-tubes-attack-the-host-plant-is-very-remarkable-woronin-says-quot-the-germ-tubes-developed-from-the-ascospores-grow-inwards-towards-the-vascular-bundles-of-the-host-plant-and-enter-them-then-they-continue-to-develop-but-now-in-the-opposite-direction-from-the-interior-of-th-RCD6A0.jpg ". Diseases of plants induced by cryptogamic parasites; introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae. Plant diseases; Parasitic plants; Fungi. SCLEROTINIA. 259 cowberry shoots, the stomata being always avoided. In less than three weeks conidia are produced. The mode in which the germ-tubes attack the host-plant is very remarkable. Woronin says: " The germ-tubes developed from the ascospores grow inwards tow^ards the vascular bundles of the host-plant and enter them; then they continue to develop, but now in the opposite direction from the interior of th Stock Photo")
RMRCD6A0–. Diseases of plants induced by cryptogamic parasites; introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae. Plant diseases; Parasitic plants; Fungi. SCLEROTINIA. 259 cowberry shoots, the stomata being always avoided. In less than three weeks conidia are produced. The mode in which the germ-tubes attack the host-plant is very remarkable. Woronin says: " The germ-tubes developed from the ascospores grow inwards tow^ards the vascular bundles of the host-plant and enter them; then they continue to develop, but now in the opposite direction from the interior of th
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