RMC09739–Calafate rust = Roya (Aecidium magellanicum) growing on the Beriberis shrub Torres del Paine National Park Patagonia Chile
RMH36CEM–Aecidium magellanicum, known as the calafate rust, is a fungi that can cause a growth defect in calafate (Berberis buxifolia)
RF2E94379–Various examples of Aecidium [rust fungi] and Agaricus [edible and poisonous mushrooms] Copperplate engraving From the Encyclopaedia Londinensis or, Universal dictionary of arts, sciences, and literature; Volume I; Edited by Wilkes, John. Published in London in 1810
RMDAK8KP–fate rust (Aecidium magellanicum), orange rust on leves , Chile, Patagonia, Torres del Paine National Park
RMC07R4J–Calafate rust = Roya (Aecidium magellanicum) growing on the Beriberis shrub Torres del Paine National Park Patagonia Chile
RM2ARK52D–damage, higher plants, fungi, aecidium elatinum, silver fir Date: undated Keywords: higher plants, damage, fungi Personal name: aecidium elatinum, silver fir
RMA1W3TG–Aecidia of rust Puccinia argentata on moschatel leaf Adoxa moscatellina
RMP5BJBK–Rust Fungus Puccinia poarum on the leaves of Colt’s-foot Tussilago farfara
RMA1W2XX–Aecidia of rust Puccinia argentata on moschatel leaf Adoxa moscatellina
RMP57J1G–Rust Fungus Puccinia poarum on the leaves of Colt’s-foot Tussilago farfara
RF2HCKT9H–Gymnosporangium cornutum, known as rowan crown, wild fungus from Finland
RF2TGNCJ5–Puccinia is a plant parasitic fungus. Photomicrograph.
RMC4A3XN–Red Fungal Galls on Dock Caused by Rust Fungus, Puccinia phragmitis, Pucciniaceae, Uredinales, Fungi.
RM2AN2YWT–Fungi, Ascomycetes, Ustilaginales, Uredinales . Fig- 77- PucciniaFalcariae; branchedfertile cell of aecidium or primaryuredosorus, x 1200: after Dittschlag. Fig. 1 ;*. Phragmidium Potcntillae-CanadensisDiet.; a. conjugation; /. branched fertilecell; after Christman. 204 PROTOBASIDIOMYCETES [CH. But the fact that these sori are developed on the same mycelium as thespermogonia, the fact that in their fertile cells nuclear association takesplace and the fact that in the formation of the fertile cell a sterile cell is cutoff, all suggest that the true homology is with the aecidium. The mycelium fo
RFCEGGCP–Diseases of plants. Publication of the book 'Meyers Konversations-Lexikon', Volume 7, Leipzig, Germany, 1910
RMPG4ARX–. Diseases of plants induced by cryptogamic parasites : introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae . Plant diseases; Parasitic plants; Fungi. AECIDIUM-FORMS. 407. iu the growth of the wood disturbs the elements, so that they are irregularly developed and more or less twisted.^ A mycelium inhabits the tissues of abnormal twigs and cankered swellings. It grows in the . intercellular spaces of the rind, between the bast cells and outer parts of the wood, and derives nutriment by means of haustoria; these either bore through the cell-walls, or only press clos
RMMED1E5–. Die Gartenwelt . Zwei Spermagonien (unten) und eine Aecidium- frucht (oben) von Puccinia graminis, in den Querschnitt eines Berberitzenblattes eingesenkt.
RFMHPJ4R–PLANTS. Parasitic Fungi on Grain Crops; Wheat rust Uredongus 1912 old print
RF2HB4M3D–Gymnosporangium cornutum, known as rowan crown, wild fungus from Finland
RMC4A3X0–Red Fungal Galls on Dock Caused by Rust Fungus, Puccinia phragmitis, Pucciniaceae, Uredinales, Fungi.
RM2AN31P9–Fungi, Ascomycetes, Ustilaginales, Uredinales . fertile layer isdifferentiated. In PucciniaPoarittn nuclear migrationssometimes take place be-tween the vegetative cellsat the base of the veryyoung aecidium. Thesecells may grow up, eitherat once or after division, toform fertile cells. The aecidiospores, then,are the products of asexualprocess by means of whichtwo nuclei become associated within thelimits of a single protoplasmic mass, form-ing the dikaryon or synkaryon of Maire.The nuclei thus brought together do notfuse, but undergo simultaneous division(fig. 174), so that a daughter nucleus,
RMPG3NP8–. Fungous diseases of plants : with chapters on physiology, culture methods and technique . Fungi in agriculture. PROTOBASIDIOMYCETES 397 advances. These spores are 20-35 * T5â22/*> an<i a spore ger- minates by the production of the characteristic promycelium, di- vided ordinarily into four cells, each producing its sporidium. The germination of the teleutospore would seem to take place ordinarily several weeks prior to the appearance of the spermogonium and aecidium, both of which arise only from teleutosporic infection. Sydow accepts the separation of the rust of clovers into two spe-
RMMCK6FA–. .2 * 5 5« tr O <^2 c 2 a I. e I « ?5 each aecidium. Ou cultivating infected plants of Crataegus indoors, I found the peridia to develop quite abnormally; they
RMK12KN3–Aecidium berberidis spores
RMW24G4K–Archive image from page 239 of Das Mikroskop; ein Mittel der. Das Mikroskop; ein Mittel der Belehrung und Unterhaltung für Jedermann sowie des Gewinns für Biese dasmikroskopeinm00vogeuoft Year: 1867 226 Aecidium bcr Berberis. bem 3Kitojloe crfcetnen fie ((ig. 74) alö ftugferniige :pöf)Ien, tt>elde in ba« arencf)l)m beö Stattet ;p p) eingefenft finb unb nekn einer »om 9}it)ce(ium gesitteten üüe (m m) aueigefüUt vx ten J)on ftabförmigen jugefpiten 'ör>evn (etevignten st) , n)e(d>e an ifren ßnben fteine vunblide tütn (pennatien) entundeln, fcie firf) aü mäürf) im 3nnerii cer pö(e a
RF2HB4M60–Gymnosporangium cornutum, known as rowan crown, wild fungus from Finland
RM2AG6T5K–. Report of the State Entomologist on injurious and other insects of the state of New York. Gall Midge Genitalia INDEX abdominalis, Loboptcromyia, 85, giabietis, Aphidolctes, 1331Acantholyda ferruginea, 67acarivora, Mycodiplosis, 183, 201acerifolia, Feltiella, 171, 173 Mycodiplosis, 174acerina, Lobodiplosis, 161, 162, 163 Mycodiplosis, 161Additions to collections, 69-75adenostoma, Asphondylia, 66Adiplosis, 80 Aecidium impatientis, 187aestiva, Mycodiplosis, 182, 194agrimoniac, Contarinia, 94, lOiAgromyza tiliae, 65alternata, Mycodiplosis, 182, 197americana, Endaphis, 92, 93 Feltiella, 171 Toxom
RMPG4ATC–. Diseases of plants induced by cryptogamic parasites : introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae . Plant diseases; Parasitic plants; Fungi. AECIDIUM-FORMS. 405 prey to wood-destroying fungi. ^ The presence of such rotting spots renders the tree liable to break over in their neighbour- hood, while they, as well as the swellings on the trunks, cause a considerable depreciation in the value of the timber. The malformations of the branch-system known as witches' brooms are frequently induced by this fungus. They occur as a rule on the horizontal branches an
RMME6KTA–. Die Natürlichen Pflanzenfamilien nebst ihren Gattungen und wichtigeren Arten, insbesondere den Nutzpflanzen, unter Mitwirkung zahlreicher hervorragender Fachgelehrten begründet . Fig. 10. Ein Spermogonium von Aecidium Eupliorbiae Pers. im Durchschnitte 2U0/1 (Nach De Bary.) 7 wi-
RMW027PT–Archive image from page 125 of Die gallen der pflanzen, ein. Die gallen der pflanzen, ein lehrbuch für botaniker und entomologen diegallenderpfla00ks Year: 1911 112 Drittes Kapitel. [vgl. Fig. 48J) und namentlich nach Infektion durch Pilze. Aus der Reihe der Uredinecn sind vor allem Melampsorella caryopliyllacearum (Aecidium elatinum) an Ahies pectinata und Puccinia Arrhenateri (Aecidiimi 10, 84). Reuter, E., Hexenbesen und Erioijhyiden (Meddel. Soc. fauna et flora fenn. 1904. 30, 34). Sadebeck, vgl. oben p. 55, Anm. 1. v. Schlechtendal,.
RM2AN31WT–Fungi, Ascomycetes, Ustilaginales, Uredinales . Fig Uromyces Poae Raben.; young aecidium,? 370; after Blackmail and Fraser. Puccinia Poarum (Blackmail and Fraser 06), Puccinia Falcariae (Ditt-schlag 10)), or directly below the epidermis (Phragmiditim violacaim (Black-man 04), Uromyces Poae (Blackman and Fraser 06) (fig. 171), PucciniaClaytoniata (Fromrne 14)); these hyphae give rise to a more or less regularseries of uninucleate cells. These are the fertile cells, but, before developingfurther, each, at any rate in the relatively primitive forms (caeomata), maycut off one or occasionally more
RMPG45DA–. Minnesota plant diseases. Plant diseases. Minnesota Plant Diseases. 53 ual, it is living parasitically on the remainder of the host plant. That the broom itself is not injured, but rather stimulated, in its growth is seen, by the production of such numerous and large-sized branches. But the ultimate effect upon the whole. Fig. 23.—Witches'-broom on balsam fir, caused by a rust fungus (Aecidium elatinuin). The branches of the broom are vertical instead of horizontal, as are the normal, un- diseased branches in the right of the picture. Original. plant is injurious because the normal balance o
RMME6KTF–. Die Natürlichen Pflanzenfamilien nebst ihren Gattungen und wichtigeren Arten, insbesondere den Nutzpflanzen, unter Mitwirkung zahlreicher hervorragender Fachgelehrten begründet . Fig. 14. A Ein durch Aecidium ornamentale Kalchbr. deformierter Zweig von Acacia horrida. B einige Aecidien vergrößert. C Ein durch Aecidium Jacobsthalii Henrici Magn. deformiertes Blatt von Berberis buxifolia. D Ein normales Blatt derselben Pflanze. (Original.)
RMW018C8–Archive image from page 68 of Die gallen der pflanzen, ein. Die gallen der pflanzen, ein lehrbuch für botaniker und entomologen diegallenderpfla00ks Year: 1911 Die a-allenerzeii2-enden Tiere und Pflanzen. 55 Ascomyceten. Das Interesse des Cecidologeu an den Ascomyceten beschränkt sich fast ganz anf die Exoascaceen, welche an Kryptogamen und Figur 13. Uredineengalle: Puccinia caricis (Schum.) 'Rehent. aut Urtica dioica (Äecidium Urticae) (Seh um.). Phanerogamen sehr verschiedenartige Grallen hervorrufen können ); Exoascus cerasi, E. carpini, E. hetiilinus (Fig. 47) u. a. erzeugen Hexen- pa
RM2AN2RY2–Fungi, Ascomycetes, Ustilaginales, Uredinales . ation. Thecytology of the aecidium wasfirst described in detail in 1904In Blackman, for Phragmidiumvio/aceum, a species occurring onthe bramble. The aecidium here is of the caeoma type, consisting of a groupof fertile cells of indefinite extent and usually bounded at the periphery bya number of thin-walled paraphyses. Its formation begins by the massing of hyphae below the epidermis of the leaf where they form a series of uninucleate cells two or three layers thick. The cells next the epidermis increase in size and each divides by a transverse wa
RMPG4B5N–. Diseases of plants induced by cryptogamic parasites : introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae . Plant diseases; Parasitic plants; Fungi. PUCCINIA. 343 hyphae forming the bottom of the aecidium-cup. These hyphae give rise to numerous short sporophores, from each of which a single long chain of spores is abjointed in basipetal succession, the spores being at first separated by temporary intermediate cells. The sporophores round the margin of each aecidium do not, however, give off spores; they also produce chains of cells basipetally, but these grow la
RMMCK64G–. Fio. IttO.—Ananone-RMt. 2 and 3, Normal plants of Anemone ranv.nculoides. 4, Aicidium pv.nclo.luiu on Anemone ranv.nculoides ; aecidia on the lower surface of the leaf; the plants are abnormally elongated, and the leaf-segments are smaller. 6 and 7, Puccinia fusca on Anemone nemorosa; the plants remiin small, 6 is completely deformed, 7 partially. 1 and 5, Aecidium leucospermum on Ammone ncmorom ; the plants are abnormally elongated and the leaf-segments smaller, (v. Tubeuf del.)
RMW01WRA–Archive image from page 105 of Die gallen der pflanzen, ein. Die gallen der pflanzen, ein lehrbuch für botaniker und entomologen diegallenderpfla00ks Year: 1911 92 Drittes Kapitel. Auch Pilze können ans einfachen Blättern unA'ollkommen ge- gliederte machen: die Blätter von Berheris buxifolia, Avelche normaler- weise verkehrt eiförmig und sitzend sind, erfahren nach Infektion durch Aecidium Jacohsthalü Henkici die verschiedensten Umformungen, deren auffälligste in Figur 31 zum Vergleich neben dem normalen Blatt dargestellt ist: das infizierte Blatt ist sehr viel größer als das normale, hat ei
RM2AWJ616–Ontario Sessional Papers, 1901, No.12-16 . p the following season. In our garden the firstappearance of spores in the spring occurred on the young shoots of asparagus aboutthe middle of May, constituting the aecidium or cluster-cup stage. These cluster cupsare of a yellowish color, and are succeeded by brown pustules of the uredospore, orsummer spore stage. In August, the summer spores are replaced by the spores of thetelentospore stage, which continues, as already mentioned, through the lato fall andwinter. (Fig. 5.) Orops badly rusted this season showed evident symptoms of lack ofvitality at
RMPG3NPH–. Fungous diseases of plants : with chapters on physiology, culture methods and technique . Fungi in agriculture. 394 FUNGOUS DISEASES OF PLANTS larger branch cutting off an apical cell. The smaller gamete in time loses its nucleus by migration through a pore into the larger gamete, and the cells thus provided with two nuclei become each properly the basal cell of one of the chains of spores which arise in this type, corresponding to the aecidium, each spore of which. Fig. 194. Phracmidium speciosum: Development of ^Ecidiospores (After Christman) u, progametes ; b, gamete and sterile cell; t',
RMMCK6JP–. Fig. 183.âPuccinia (/raminis {Aecidium herheridis) on Berberis convmunis. The lowest leaf and two others are seen on the upper surface, and show red spots with light margins, in which the pycnidia are embedded. The other leaves show the under surface with patches of aecidia. (v. Tubeuf del.) to their neighbours to form the peridium. Diseased portions of leaves become considerably thickened. The cells of the single layer of palisade parenchyma are abnormally elongated, and the intercellular spaces of the spongy parenchyma, instead of being large, are small and filled with mycelium. The aecidi
RMW15TRC–Archive image from page 181 of Die Krankheiten der Pflanzen; ein. Die Krankheiten der Pflanzen; ein Handbuch für Land- und Forstwirte, Gärtner, Gartenfreunde und Botaniker . diekrankheitend02fran Year: 1895 lf6 T. 5lbfdhnitt: qjtnrafitifdbc piljf ÄciMiim in bcm Aecidium Rhanjni fs. iefunben. Saöfelbc iuäcl)ft auf Rhamnus cathartica unb Frang:ula nnb ineUcici)t iiocf) auf aubcru SIvtcn biefor Oiathuui, iovo) au cnuartifoucu '4>fltiii3cu iine au mci: 3äuiliuicu. (So tritt iouuil)l auf bcu iMättcru iu Licfou '4>ol[tcvu, bcfoubciy an bcu JRippcn, alö aud) auf iMattftiolcu, uicicjcu
RM2AN32KN–Fungi, Ascomycetes, Ustilaginales, Uredinales . Fig. 164. Germinating teleutospores ; a. Phragmidium bulbosum Schm.; b. Triphragmidium UlmariaeLk.; c. Colcosporitim Sonchi Lev.; d. Uromy es appendiculatus (Fabae) Lev.; after Tulasne. (II. VIII] IRKIMXALKS ?97 of the spore forms other than tlie teleutospore, such as Aecidium, Caeomaand Uredo, still survive in our nomenclature. The teleutospores (figs. 164, 165, 166) may be unicellular or they maybe made up of two or more cells forming a compound structure, each cell of. Fig 165. Cronartiumepiadeum Fr. ; te-leutospore mass withbasiclia and spore
RMPG4AYR–. Diseases of plants induced by cryptogamic parasites : introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae . Plant diseases; Parasitic plants; Fungi. 386 UREDINEAE. The aeeidia are developed about the beginning of June, and on Crataegus their peridia in dehiscing split up into very- narrow lobes so as to form a bristly tuft over the mouth of. each aecidium. On cultivating infected plants of Crataegus indoors, I found the peridia to develop quite abnormally; they. Please note that these images are extracted from scanned page images that may have been digitally enh
RMMA737W–. Elementary botany . Fig. 156. Section of an aecidium (cluster cup) from barberry leaf. (After Marshall-Ward.) out on the surface of the leaf. These flask-shaped pustules are called spermagonia, and the minute bodies within them spermatid, since they were once supposed to be the male element of the fungus. Their function is not known. They appear in the spots at an earlier time than the cluster cups. 293a. How the cluster-cup stage was found to be a part of the wheat rust. —The cluster-cup stage of the wheat rust was once supposed also to be a dif- ferent plant, and the genus was called cecid
RMW028BJ–Archive image from page 126 of Die gallen der pflanzen, ein. Die gallen der pflanzen, ein lehrbuch für botaniker und entomologen diegallenderpfla00ks Year: 1911 Morphologie der Gallen. 13 suaveolensj auf Berheris vulgaris als Hexenbesenerzeuger zu nennen; Puccinia Rühsaameni ruft ähnliche Gebilde an Origanum, P. Schneiden an Thymus, Aecidium Acaciae an Acacia ethaica hervor usw. Von den Usti- 1 ag- i n e e n erzeugt Ustilago Vriesiana nach Vuillemin Hexenbesen auf verschiede- nen Myrtaceen. Die Hexen- besenbildner par excellence sind unter den Pilzen die Exoascaceen (Exoascus Cerasi an Prunu
RM2ANDJD1–Moulds, mildews, and mushrooms; a guide to the systematic study of the Fungi and Mycetozoa and their literature . of Hepatica acuta. FiG. 17, leaf from the sameplant distorted hy Aecidium hepaticatum (Uredinales). Both one-halfnatural size. Fig. 18, a portion of the under surface of the leaf in Fig.17 showing the crater-like cluster-cups with spermogonia scattered amongthem. X 5. (233) EXPLANATION OF PLATE VIIBasidiomycetes Fig. I. Section of an agaric showing solid fleshy stem and adnatalamellae. Fig. 2. Section of an agaric showing hollow stem and sinuate lamellae. Fig. 3. Section of an agar
RMPG430J–. Diseases of plants induced by cryptogamic parasites : introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae . Plant diseases; Parasitic plants; Fungi. EFFECT OF PARASITIC FUNGI ON THE FORM OF HOST-PLANT. 23 ranunculoides under the influence of Aecidium punctahim. In the simpler cases the floral leaves were narrow, elongated, and greenish, stamens were formed but not carpels; in more pro- nounced cases, the petals were only represented as small, simple,. Fig. 5.—Cherry tree in blossom, with three "witches' brooms" in foliage, (v. Tubeuf phot.) stalked, gr
RMMCKC9P–. Fig. 96.—Cronartium ribicohint. i, uredo and teleuto- spore stages on leaf of black currant; 2, uredospores, (Z, and teleutospores, b, cemented together in a column ; 3, uredospore ; 4, teleutospores, two of which are germi- nating ; 5, aecidia on bark of Weymouth pine; 6, aecidiospores. Figs, i and 5 nat. size, remainder highly mag. aggregated into a column which springs from the sorus of uredospores. Weymouth pine rust {Cronartium ribicolum, Deitr. = Peridermium sirobi, Kleb.).—The aecidium stage of this
RMT1JF5Y–Diseases of plants induced by 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 diseasesofplants00tubeuoft Year: 1897 358 UREDINEAE. some confusion between plants infested with this Fuccinia and those with species of Accidvmn. The changes induced on anemone by either Aecidium Icucos'permum D.C. or Aec. pundatum Pers. are quite distinct (Fig. 190). y ..,«:->;-r-..->fJ fi.jSA.': â > SA i '&-'
RM2AJ5YF5–Transactions and proceedings of the Royal Society of South Australia (Incorporated) . hihhertiae, though it differs from it inthe size of the spores, which are consistently shorter in ourspecimens. In other respects it conforms to McAlpinesdescription (McAlp., 1906, p. 185). Aecidium oleariae, McAlp. On stems of Oleariaaxillaris, F. v. M., I., on stems only. Victor Harbour, June16, 1918, T. G. B. O. (McAlp., 1906, p. 197). 173 USTILAGINEAE. UsTiLAGO CYNODONTis, P. Henii. Destroying the inflor-escences of Gynodon dactylon, Pers. Mile End, Jan., 1918,G. Quinn. Although the host plant of this fun
RMPG4B4E–. Diseases of plants induced by cryptogamic parasites : introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae . Plant diseases; Parasitic plants; Fungi. 358 UKEDINEAE. some confusion between plants infested with this Puccinia and those with species of Aecidium. The changes induced on anemone by either Aecidium leucospermum D.C. or Aec. puTictatum Pers. are quite distinct (Fig. 190).. Fig. 191.—Puceinia ribis on Red Currant {Ribes rubrum). Teleutospore-patches on leaves and fruit, (v. Tubeuf phot.) P. singularis Magu. On Anemone ranunculoides in Austria and south-eas
RMMCK6G9–. Fig. 206.—Aecidium in a needle of Silver Fir (much enlarged), b, Series of aecidiospores and intermediate cells. '•, Germinating aecidiospores. (After R. Hartig.) This aecidium is also fouud on Abies cephalonica in Upper Bavaria. Barclayella deformans Diet.^ This has been found in the Himalaya region on needles and young twigs of Picea Morinda (Smithiana). Teleuto- spore-sori are developed, accompanied by distortion of the host. Aecidia and uredospores are unknown. ^Barclay, "Oil a Uredo of the Himalaya Spritce-Jir." Hedwigia, 1891. Calcutta, 1886; and
RMT1HX36–Diseases of plants induced by Diseases of plants induced by cryptogamic parasites; introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae diseasesofplant00tube Year: 1897 AECIDIUM-FORMS. 407 in the growth of the wood disturbs the elements, so that they are irregularly developed and more or less twisted. A mycelium inhabits the tissues of abnormal twigs and cankered swellings. It grows in the intercellular spaces of the rind, between the bast cells and outer parts of the wood, and derives nutriment by means of haustoria : these either bore through the cell-walls, or onl
RM2AJDBKF–Elementary botany . Fig. 214.Barberry leat with twodiseased spots, naturalsize. Fig. 215.Single spotshowing clustercups enlarged. 190 MORPHOLOG Y. is formed of similar rows of cells, which, instead of separatinginto gonidia, remain united to form a wall. These cups areusually borne on the under side of the leaf. 405. Spermagonia.—Upon the upper side of the leaves in the same spotoccur small, orange-colored pustules which are flask-shaped. They bearinside, minute, rod-like bodies on the ends of slender threads, which ooze. Fig. 217.Section of an aecidium (cluster cup) from barberry leaf. (After
RMPG4DM9–. The fungal diseases of the common larch . Larches. ^& (On the ground] %l I On Plant B I -y Fig. 71. of some definite species, the host b. In the case of the black rust of wheat, this plant is the barberry. The germ- tube which grows from a sporidium pierces the cuticle and enters an epidermal cell of the host B, and develops into a mycelium which fills the tissues, and gives rise to another special type of pustule, also usually rust-red in colour, which is called the aecidium. The aecidium pustules contain spores, known as aecidiospores, which are incapable of infecting plant b, but in
RMMCK6HP–. Fig. 190.—Anemov.e-Rv.sl. 2 and 3, Normal pUmts of Anemone ranv.ncv.loid.es. 4, A'cidiuiii punctatuiii on Anemone ranuncuioides ; aecidia on the lower surface of the leaf; the plants are abnormally elongated, and the leaf-segments are smaller. 6 and 7, Pv.ccinia j'usca on Anemone nemorosa ; the plants rem lin small, 6 is completely deformed, 7 partially. 1 and 5, Aecidium lev.cosiwmum on An-mune nemorosa; the plants are abnormally elongated and the leaf-segments smaller, (v. Tubeuf del.)
RMT1HX10–Diseases of plants induced by Diseases of plants induced by cryptogamic parasites; introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae diseasesofplant00tube Year: 1897 AECIDIUM-FOKMS. 40r) prey to wood-destroyiug fungi. The presence of such rotting spots renders the tree liable to break over in their neighbour- hood, while they, as well as the swellings on the trunks, cause a considerable depreciation in the value of the timber. The malformations of the branch-system known as witches' brooms are frequently induced by this fungus. They occur as a rule on the horizont
RM2AN3B15–Handbuch der Pflanzenkrankheiten . rch die keimenden Basidiosporen an denBlättern, Blattstielen und sogar jungen Trieben von Pirus communis(und verwandten Pirus-Arten) hervorgerufen werden. Es bilden sichan den infizierten Stellen im Sommer auf der Blattoberseite gelbeklebrige Flecken aus, in denen die Pykniden (Fig. 50, 7) stehen, späterfolgen dann unterseitig die auffällig gelbroten Aecidienbecher (Fig. 50, 6).Die Aecidien öfihen sich nicht vollständig, sondern die Pseudoperidiereifst nur gitterförmig auf, woher das Aecidium auch seinen NamenRoestelia cancellata erhalten hat (Fig. 50, 8—12).
RMPG4B1X–. Diseases of plants induced by cryptogamic parasites : introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae . Plant diseases; Parasitic plants; Fungi. Fig. 205.—Calypiospora Goeppertiana. Aecidia on the under surface of needles of Silver Fir. (v. Tubeuf del.). Fig. 206.—Aeoidium in a needle of Silver Fir (much enlarged). 6, Series of aecidiospores and intermediate cell^. c, Germinating aecidiospores. (After B. Hartig.) This aecidium is also found on Aiies cephalonica in Upper Bavaria. Barclayella deformans Diet.^ This has been found in the Himalaya region on needl
RMMCK64X–. Fig. 183.—Puccinia r/ramiiiis (Aecidium herberidis) on Berheris communis. The lowest leaf and two others are seen on the upper surface, and show red spots with light margins, in which the pycnidia are embedded. The other leaves show the under surface with patches of aecidiu. (v. Tubeuf del.) to their neighbours to form ilie peridium. Diseased portions of leaves become considerably thickened. The cells of the single layer of palisade parenchyma are abnormally elongated, and the intercellular spaces of the spongy parenchyma, instead of being large, are small and filled with mycelium. The aecid
RMT1HRD9–Diseases of cultivated plants and Diseases of cultivated plants and trees diseasesofcultiv00massuoft Year: [1910?] MELAMPSORA 325 Pine branch twist.—The aecidium phase of Melampsora pinitorqua, ostxn {=Caeoma pinitorqiaan, A. Br.), has been shown by Hartig to be very destructive to young pines, seedlings being sometimes diseased as they appear above ground. About the age of thirteen the disease dies out, and those that have not been too severely attacked, recover. Plants that are attacked when quite young are usually killed, Fig. ()Z.—Melampsora pinito?-qua. i, top of young pine attacked
RM2AN39M4–Handbuch der Pflanzenkrankheiten . chiedene Rassen diesesPilzes, welche die Arten aus den verschiedenen Sektionen der GattungBromus in ungleichem Mafse befallen. Auf diese zum Teil noch weniggeklärten Verhältnisse einzugehen, mufs ich mir versagen. Der Braun-ost des Weizens, P. triticina Eriks., schädigt diese Getreideartbisweilen in aufserordentlich empfindlicher Weise. Klebahn hat aus-gedehnte Infektionsversuche gemacht, um das Aecidium zu finden; bis-her aber olnie Erfolg, so dafs Eriksson die Ansicht ausspricht, dafs einAecidium überhaupt fehlt. Auch beim Braunrost der Gerste,P. Simplex (K
RMPG0RE7–. Fungoid and insect pests of the farm. Agricultural pests. 66 Rusts [OH.. Fig. 24. Pwxinia graminis. (1) Uredospore stage on wheat; (2)uredo- spore stage highly magnified; (3) uredospore stage very highly magnified; (4) uredospore germinating; (5) teleutospore stage on wheat; (6) teleutosporea; (7) a teleutospore germinating; (8) aecidio- spore stage on barherry leaf; (9) aecidium cup showing the chains of aecidiospores; (10) two aeoidium cups. (After Massee.). Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - colorati
RMMCK5A4–. Kiii. 20d.âAecidiuin in a needle of Silver Fir (much enlarjjed). h. Series of aecidiospores and intermediate cells. 'â , (icniiinatin^' aecidiospores. (.ftcr R. HartiK.) This aecidium is also fouml on Alii<s rrfi/K'/onini in I'jiju'r iJavaria. Barclayella deformans Diet.' This lia.s ln'i'ii fouiul in the Hiiiuilava rf;,'ii'ii I'll iiimmIIis mill xmin;; twiLfs of /'inn Murim/n {Sinitliimi'i). 'rcicutci- s|)(.ri'-M)ii aiv (U'Velojted, airi)iii|iaiiii'i| i (listuitiini nf tiif Imst. .ilâ'i,iia, 1S5JI.
RMT1JE9P–Diseases of plants induced by Diseases of plants induced by cryptogamic parasites; introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae diseasesofplants00tube Year: 1897 pucciNiA. 343- hyphae forming the bottom of the uecidium-cup. These hyphae give rise to numerous short sporophores, from each of which a single long chain of spores is abjointed in basipetal succession, the spores being at first separated by temporary intermediate cells. The sporophores round the margin of each aecidium do not, however, give off spores; they also produce chains of cells basipetally,
RM2AN3BNE–Handbuch der Pflanzenkrankheiten . her über-haupt das Fehlen der Aecidiengeneration annahm. Der eigentlicheSchädling ist das Aecidium, über dessen Wirkung wir durch eingehendeUntersuchungen de Barys *), Mers^), Hecks^) und vieler Forstmänner ) Über den Krebs und die Hexenbesen der Weifstanne in Bot. Zeit. 1867 S. 257.2) Le chaudron du sapin in Rev. gen. de Bot. VI, 1894, S. 152.^) Der Weifstannenkrebs. Berlin 1894. 352 III. D. Basidiomycetes. ausreichend unterrichtet sind. Die anatomischen Veränderungen sindaulser durch die genannten Autoren besonders von Hartmann ^) undAnderson^) genauer stud
RMPFC740–. Der Forstschutz. Forests and forestry. 5i(6tcn5apien, mit Accidiam strobi- liiiiun Alh. et Schw. teicftlitft belegt. 9lccibien uon Aecidium strobiliuum Alb.et Schw., Olli iet Onnfnifito c""'' Sictitcii.vipicnüfciipiic. 3Ri)ce( ft^maro^t in ben noc^ grünen Sc^nppen, aber o^ne bicje 5U öeriinbern. Sie jugeliörigcn Seleutufporcn finb nod} nid)t befannt. S;er gic^tenäopfenroit tonimt im gangen 5i3erbreitnng<ägebiete ber gierte uor. Bufa^. 9luf gi^tcnja^jfen lebt unb fc^abet au^erbem: Aecidium conorum piceae Rss. (Peridermiani conophilum WUk.).') 5)ie 9(ecibien biefeS ^pilgeö l'inb b
RMME6KFN–. Die Natürlichen Pflanzenfamilien nebst ihren Gattungen und wichtigeren Arten, insbesondere den Nutzpflanzen, unter Mitwirkung zahlreicher hervorragender Fachgelehrten begründet . Fig. 43. Puccinia graminilla (Speg.) Diet. et Ilolw. Schnitt durch ein schmäleres Aecidium mit seitlich davon an demselben Mycel erzeugten Teleutosporen 270/1. (Original.) C. Sect. Brachypuccinia. Die primäre, von Pykniden Itegleitete Uredogeneration bringt ähnliche Deformationen hervor wie bei anderen Arien die Aecidiumgeneration. Diese bestehen in scliwielenartigen Auflreibunuen bei P. bullala (Pers.) Schrot, auf
RMT1HX35–Diseases of plants induced by Diseases of plants induced by cryptogamic parasites; introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae diseasesofplants00tube Year: 1897 AECIDIUM-FOKMS. 405 prey to wood-destroying fungi.' The presence of such rotting spots renders the tree liable to break over in tlieir neighbour- hood, while they, as well as the swellings on the trunks, cause a considerable depreciation in the value of the timber. The malformations of the branch-system known as witclies' brooms are frequently induced by this fungus. They occur as a rule on tlie lior
RMMCK63D–. Fici. 206.—Aecidium in a needle of Silver Fir (much enUirged). b. Series of aecidiospores and intermediate celLs. c Germinating aecidiospores. (After R. Hartig.) Tliis aecidium is also found on Ahys cvphalonicfi in U])per Bavaria. Barclayella deformans Diet.' This lias been found in the Himalaya reyidii on needles and young twigs of Picea Morinda {Smithiftna). Teleuto- .•^poie-soii are develuped, accompanied by distortion of the host. Aecidia and uredospores are unknown. ' Barclay, " Ow a Urexlo of (he Himalaya Sjiruce-fr Hedwifjia, 1891. Calcutta, 18S6; and
RMT1H2R6–Diseases of cultivated plants and Diseases of cultivated plants and trees diseasesofcultiv00massuoft Year: [1910?] 298 DISEASES OF CULTIVATED PLANTS Mint rust, caused by Puccinia fnenihae (Pers.), often com- pletely destroys entire beds of mint. All stages of the fungus are produced on the same host. The cluster-cup condition of the fungus appears first somewhat early in the season, and is most abundant on the stems, which become much twisted, distorted, and swollen, and more or less covered with the I'iG. 87.—Puccinia asparagi. 1, aecidium stage on a young shoot of asparagus ; 2, teleuto
RM2AJJFK7–Bonniers konversations lexikon . uredoformen.Krön rost (Puccinia Lolii)värdväxlar mellan vägtorn ochhavre m. fl. gräs. Vinbär m. fl.i?i6cs-arter angripas av filtrost(Cron<irtium ribicola), som haraecidier på stamdelar av Wey-mouth- och cembratall. Törska-te på vanlig tall orsakas av ettannat aecidium (kallat Pcrider-mium Pini) ; denna svamp kanvara värdväxlande [Cronartium(se vid. d. o.) asclcpiadeiim] 1.också leva utan sommar- och vin-tersporer. Barrfällning hosgran framkallas av aecidiestadietav skvattramrosten(Chnjsomyxa Ledi) och av denmed endast teleutosporer utru.sta-de granrosten (Ch
RMMCKCB6–. Fig. 89—Pucchiiagraminis. i, wheat leaves with uredo pustules ; 2, a uredo sorus ; 3, uredospores in different stages of development; 4, uredospore germinating ; 5, culm of wheat with teleutospore sori; 6, teleutospores in different stages of development ; 7, teleuto- spore that has germinated and produced a germ-tube bearing three sporidiola or secondary spores ; 8, barberry leaf with clusters of aecidia ; 9, section of an aecidium with chains of aecidiospores ; 10, two aecidia ; 11, spermatia from a spermogonium. Figs, i, 2, and 8 reduced, remainder variously mag.
RMT1HXH5–Diseases of economic plants (1910) Diseases of economic plants diseasesofeconom02stev Year: 1910 TREES AND TIMBER 439 vated perithecia, the cluster surrounded by a border of dead tissue. Premature defoliation results. The disease is very abundant in all parts of the United States. In- fected materials should be burned in the fall. Powdery mildew, uncinulose. See oak. Powdery mildew, phyllactinose. See oak. FILBERT. See hazel. FIR Rust (Aecidium elatinum Alb. & Schw.). — This cluster-cup fungus has been noted in Minnesota.1 It produces bushy distortions, 'witches' brooms,' by causing profuse
RM2AGA5W3–. Arkiv för botanik. I.JUSTR. A. B. LAGRELIUS & WESTPHAL, 5 Vesierg. 4 U. Bauhinias (Berk & Curt.> Vesterg 5. U. foveolatus Juel. 6. U. Perlebije Vesterg.inus Pazschke 11. U. pannosus Vesterg. 12. U. Hemmendorffii Vesterg Arkiv för Botanik. Band 4, N:o 15. Taf. 2.. E, ROSENIUS & T. VESTERGREM UEL. LJUSTR. A. B. LAGREIJUS & WESTPHAL. 13. Uromyces regius Vesterg. 14. U. jamaicensis Vesterg. 15. U. goyazensis P. Henn. 16. U. anthe-mophilus Vesterg. 17. U. floralis Vesterg. AHKIV H)|| IJOTAiMK.isAND 1. No n;. Mykologische Beiträge VII. Das Aecidium auf Ranunculus auricomus undseine Teleutospore
RMMCK6NC–. Fig. G.—Euphorbia Cj/parissias. A healthy flowering normal plant compared with the attenuated non-flowering form inhabited by Aecidium euphorbiae. (V. Tiibeuf phot.) ccrasi (Fig. 5), which bears only leaves when the rest of the tree is in blossom. Another perennial symbiosis behaving thus is shown in Eupliorhia Cyparissias attacked by Accidium euphorbiae; year after year the diseased shoots produce only leaves, which assist in the reproduction of the fungus (Fig. 6). Similarly with many other Uredineae. Arrest of the seed occurs in ovaries of species of Pnnius under the influence of Exoascl
RMT1HXH4–Diseases of economic plants (1910) Diseases of economic plants diseasesofeconom00stev Year: 1910 TREES AND TIMBER 439 vated perithecia, the cluster surrounded by a border of dead tissue. Premature defoliation results. The disease is very abundant in all parts of the United States. In- fected materials should be burned in the fall. Powdery mildew, uncinulose. See oak. Powdery mildew, phyliactinose. See oak, FILBERT. See hazel. FIR Rust (Aecidium elatinum All). & Schw.). — This cluster-cup fungus has been noted in Minnesota.' It produces bushy distortions, 'Svitches' brooms,' by causing profus
RM2CDCB21–. Fungous diseases of plants, with chapters on physiology, culture methods and technique . Fig. 202. PucciNiA graminis. (After Ward)rt, section of barberry leaf showing spermogonia and aecidia; h, aecidium stage, which breaks through the epidermis in somewhat similarmanner. The spermogonium shows a very simple development,resulting by the gradual growth in extent of a small mass of fila-mentous hyphae developing in an intercellular manner just beneath 412 FUNGOUS DISEASES OF PLANTS the upper epidermis. At maturity the flask-shaped body consistsof an indefinite wall, later giving rise to numero
RMMCKCAB–. F"lG. 95.—Gymttoiporangium clavariacforme. I, teleutospore stage on juniper branch; 2, teleutospores; 3, teleutospores ger- minating and producing secondary spores, (7, a ; 4, aecidium stage on pear leaf ; 5, aecidium stage on branch, leaves, and fruit of hawthorn ; 6, aecidiospore germinating. Kigs. i, 4, and 5 reduced, remainder highly mag. Hawthorn cluster-cups (Gymnosporangium clavariaeforme, Jacq.) causes spindle-shaped swellings on the branches of [ttniperus communis, and during the months of April and May numerous flattened, pale-orange, gelatinous masses I
RMT1HPRT–Diseases of cultivated plants and Diseases of cultivated plants and trees diseasesofcultiv00massuoft Year: [1910?] GYMNOSPORANGIUM 315 chains. Closely allied to Phragmidhtm, differing mainly in the relatively greater number of cells forming the teleuto- spore. Both stages grow on the same host-plant. Burnet leaf spot {Xenodochus carbonarius, Schlecht.) is parasitic on this plant. The aecidium stage forms large, orange-red, roundish patches on the leaves, and elongated patches on the stems. This is followed by the black, wart- like pustules of the teleutospore stage on the leaves. Only met wi
RM2CDD8JW–. The rusts of Australia, their structure, nature, and classification . C. JACKSONIAE ON GOMPHOLOBIUM LATIFOLIUM. 3i8 Explanation of Plates. PLATE XXXIX. (All aecidia X 50, and aecidiosfores X 300.) AECIDIUM.Fig. 2S7. A. veronicae on Veronica sp. 288. A. flantaginis-variae on Plan/ago varia. 2S9. A. lobeliae Thuem., on Lobelia fratioides, described in connexion with Pucciniaaucta. The free margin ruptures irregularly, and it is sometimes difficult todetect a peridial wall, so that it partakes of the nature of a Caeoma. 290. A. cymbonoti on Cymbonotus lawsonianus. 291. A. monocystis on Abrotane
RMMCK5BP–. Fio. ISo.—Puccinia cancis on Stliiging A'cttlc. The aecidial cushions have caused swelling and distortion of steins and leaf-stalks, also swollen outgrowths on the leaves, (v. Tubeuf phot.) Klebahn and Magnus believe that there is a Puccinia on Carex acuta and G. Goodcnoughii related to an Acciditcm on Bibes Grossularia, R. riibrum, and R. aurcum ; also a Puccinia on Carex riparia with an Aecidium on Ribcs nigrum. On this account Klebahn ^ distinguishes Puce, caricis i., ii., and iii., agreeing respectively with P. Pringshcimiana Kleb., P. caricis (Schum.), and P. Magnusii Kleb. P. Schoeleri
RMT1HPN1–Diseases of cultivated plants and Diseases of cultivated plants and trees diseasesofcultiv00massuoft Year: [1910?] PHRAGMIDIUM 313 dark brown, 3-8 septate, 75-100X26-30 [i, pedicel long, thickened in the middle. The infection in spring depends entirely on the presence of teleutospores present on fallen leaves, consequently all fallen leaves should be either buried by digging during the winter or by sweeping up and burning. Plants that have Fig. 92.—Plu-agmidium stibcorticatum. i, rose branch and leaves with aecidium stage of fungus ; 2, rose leaf with teleutospores ; 3, teleutospores ; 4,
RM2CDD8N2–. The rusts of Australia, their structure, nature, and classification . G. H. Robinson, Pilot. CRONARTIUM.C. JACKSONIAE ON PLATYLOBIUM AND AOTUS. 3i6 Explanation of Plates. PLATE XXXVIII. CRONARTIUM JACKSONIAE.Fig.2S5. Witches broom, due to C. jacksoniae on Gomfholobium latifolium ... nat. size 286. Normal healthy shoot of Gomfholobium latifolium ... ... nat. size Plate XXXVIII.. G. H. Robinson, Phot. • Nat. size. CRONARTIUM. C. JACKSONIAE ON GOMPHOLOBIUM LATIFOLIUM. 3i8 Explanation of Plates. PLATE XXXIX. (All aecidia X 50, and aecidiosfores X 300.) AECIDIUM.Fig. 2S7. A. veronicae on Veronica
RMMCKC9H–. Fig. ()Z.—Melampsora pinito?-qua. i, top of young pine attacked by the aecidium stage; 2, two chains of aecidiospores ; 3, aspen leaf with sori of teleutospores ; 4, section of cushion of teleutospores, still covered by the epidermis. Figs, i and 3 nat. size ; remainder mag. as the fungus appears year after year if damp weather prevails in May and June; this indicates that the fungus is peren- nial in the tissues of the host. In the seed-bed or young plantation the disease usually spreads from a centre, due to infection by wind-borne spores, showing that the aecidiospore stage is capable of
RMT1HP89–Diseases of cultivated plants and Diseases of cultivated plants and trees diseasesofcultiv00massuoft Year: [1910?] Fig. 89—Pucchiiagraminis. i, wheat leaves with uredo pustules ; 2, a uredo sorus ; 3, uredospores in different stages of development; 4, uredospore germinating ; 5, culm of wheat with teleutospore sori; 6, teleutospores in different stages of development ; 7, teleuto- spore that has germinated and produced a germ-tube bearing three sporidiola or secondary spores ; 8, barberry leaf with clusters of aecidia ; 9, section of an aecidium with chains of aecidiospores ; 10, two aecidia
RM2CDEYN0–. Allgemeine Pflanzenkaryologie . w %v. Fig. 334. Phragmidiunt violaceum. vX Eine Reihe Fig. 335. Tilletia dreikerniger triiiei. Kopulierende Zellen inner- Sporidien; die zwei- halb des Aeci- kernig werdendeZelle diums. entsendet bereits Vergr. 1050. einen Seitenast. (NachBl.ckman.) Vergr. 500.(Nach Rawitscher.). Fig. 336. Tilldia laevisKeimende Spore, die achtKerne in eigentümlichenPaaren, trotzdem es sich umdie Haploidphase hamleltVergr. 500.(Nach Rawitschkk.i er dei Kopulation der 9 Gameten im Aecidium-Grunde entspricht. Odeinoch besser, wir können es mit jenen Saccharomyceten vergleichen,
RMMCKCAR–. Fig. 92.—Plu-agmidium stibcorticatum. i, rose branch and leaves with aecidium stage of fungus ; 2, rose leaf with teleutospores ; 3, teleutospores ; 4, uredospores. Figs, i and 2 nat. size, remainder highly mag. been attacked should be drenched with a solution of sulphate of copper during the winter. Raspberry rust {Phragmidium rubi-idaei, Winter) pro- duces its three stages on the raspberry plant. The aecidium condition appears first on the upper surface of the leaves in the month of June, under the form of greenish-yellow pustules, usually arranged in broken circles. The uredo stage appear
RMT1HTTE–Diseases of plants induced by 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 diseasesofplants00tubeuoft Year: 1897 Fig. 205.âCnh/ptottpo'a Gotppertiano. Aecidia on the under surface of needles of Silver Fir. (v. Tubeuf del.) Kiii. 20d.âAecidiuin in a needle of Silver Fir (much enlarjjed). h. Series of aecidiospores and intermediate cells. 'â , (icniiinatin' aecidiospores. (.ftcr R. HartiK.) This aecidium is also fouml on Alii<s rrfi/K'/onini in I'jiju'r iJavaria. Barc
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