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Teleutospores Stock Photos and Images
![Diseases of cultivated plants and Diseases of cultivated plants and trees diseasesofcultiv00massuoft Year: [1910?] PUCCINIA 311 I as in other instances, one attack implies immunity in the j future. i ! Pink rust {Puccinia arenariae, Wint.) often causes injury j to cultivated pinks and carnations. It forms small blackish spots arranged in irregular circles on the leaves and stem. H', ; . .••.♦. ... ..V -- Fig. 91.—Puccinia malvacearum. Hollyhock leaf showing pustules of fungus ; 2, teleutospores, one germinating. Highly mag. Teleutospores only are present. These are fusoid or clavate, apex Stock Photo](https://c8.alamy.com/comp/T1HPK3/diseases-of-cultivated-plants-and-diseases-of-cultivated-plants-and-trees-diseasesofcultiv00massuoft-year-1910-puccinia-311-i-as-in-other-instances-one-attack-implies-immunity-in-the-j-future-i-!-pink-rust-puccinia-arenariae-wint-often-causes-injury-j-to-cultivated-pinks-and-carnations-it-forms-small-blackish-spots-arranged-in-irregular-circles-on-the-leaves-and-stem-h-v-fig-91puccinia-malvacearum-hollyhock-leaf-showing-pustules-of-fungus-2-teleutospores-one-germinating-highly-mag-teleutospores-only-are-present-these-are-fusoid-or-clavate-apex-T1HPK3.jpg "Diseases of cultivated plants and Diseases of cultivated plants and trees diseasesofcultiv00massuoft Year: [1910?] PUCCINIA 311 I as in other instances, one attack implies immunity in the j future. i ! Pink rust {Puccinia arenariae, Wint.) often causes injury j to cultivated pinks and carnations. It forms small blackish spots arranged in irregular circles on the leaves and stem. H', ; . .••.♦. ... ..V -- Fig. 91.—Puccinia malvacearum. Hollyhock leaf showing pustules of fungus ; 2, teleutospores, one germinating. Highly mag. Teleutospores only are present. These are fusoid or clavate, apex Stock Photo")
RMT1HPK3–Diseases of cultivated plants and Diseases of cultivated plants and trees diseasesofcultiv00massuoft Year: [1910?] PUCCINIA 311 I as in other instances, one attack implies immunity in the j future. i ! Pink rust {Puccinia arenariae, Wint.) often causes injury j to cultivated pinks and carnations. It forms small blackish spots arranged in irregular circles on the leaves and stem. H', ; . .••.♦. ... ..V -- Fig. 91.—Puccinia malvacearum. Hollyhock leaf showing pustules of fungus ; 2, teleutospores, one germinating. Highly mag. Teleutospores only are present. These are fusoid or clavate, apex
RM2AJ5060–Fungous diseases of plants . h a Fig. 213. CoLEospoRiu:i Senecionis {b after Tulasne) attaining a maximum thickness of 30-40/x. XXVIII. RUST OF POPLAR Melampsom tre/iii/he Tul. Tulasne applied the above name to a rust of the poplar {Popuhist re HI N la) occurring throughout a considerable range in Europe.It would seemthat this namewould now in-clude at leastthree forms, orspecies, as dis-tinguished byKlebahn, viz.,Melampsora PinitorquaRostr,, MelampsoraLariei-trem nice Kleb.,and Melampsora Mag-misiana Wagn, These. Fig. 214. Melampsora tremul^ : Uredospores AND TeLEUTOSPORES 438 FUNGOUS DISEAS
RMPG4B3T–. Diseases of plants induced by cryptogamic parasites : introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae . Plant diseases; Parasitic plants; Fungi. FiG. 194.—PhrftgniidiiiTn sttbcwticium on a Rose leaf. The black spots are teleutospore-patches on the uuder- surface of the leaf. (v. Tubeuf deL) Fig. 193.— Tfipkragmium ulmai-iac on Spiraea Ulmai-ia. Germinating teleuto- spore, with promycelia and ^poridia. (After Tulasne.) teleutospores are produced in loose patches. The aecidial patches have no covering, but are surrounded by club-shaped paraphyses. The genus fr
RMMCK595–. Fig. 230.—Gymnosporanciium xabinae on twigs of Juaifii ras Suhinn, at the time of liberation of spores, (v. Tubeuf phot.) twigs and scale-leaves. These bodies absorb water, swell, and run together, forming transparent gelatinous masses (Figs. 230 and 231). The teleutospores resemble those of G. juniperinum, but have only four germ-pores; they germinate on the gelatinous masses, and produce promycelia and sporidia. The latter germinate at once, chiefly on leaves of Pyrus com- munis. The pycnidia are produced on the upper epidermis as sticky yellow spots bearing darker dot-like pycnidia. The a
![Diseases of cultivated plants and Diseases of cultivated plants and trees diseasesofcultiv00massuoft Year: [1910?] CRONARTIUM 319 CRONARTIUM (Fries.) Aecidia produced on conifer leaves (so far as known), peridia elongated, aecidiospores in chains. Uredospores pro- duced in a pseudoperidium, brown. Teleutospores i-celled, 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 Stock Photo](https://c8.alamy.com/comp/T1HR2D/diseases-of-cultivated-plants-and-diseases-of-cultivated-plants-and-trees-diseasesofcultiv00massuoft-year-1910-cronartium-319-cronartium-fries-aecidia-produced-on-conifer-leaves-so-far-as-known-peridia-elongated-aecidiospores-in-chains-uredospores-pro-duced-in-a-pseudoperidium-brown-teleutospores-i-celled-fig-96cronartium-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-T1HR2D.jpg "Diseases of cultivated plants and Diseases of cultivated plants and trees diseasesofcultiv00massuoft Year: [1910?] CRONARTIUM 319 CRONARTIUM (Fries.) Aecidia produced on conifer leaves (so far as known), peridia elongated, aecidiospores in chains. Uredospores pro- duced in a pseudoperidium, brown. Teleutospores i-celled, 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 Stock Photo")
RMT1HR2D–Diseases of cultivated plants and Diseases of cultivated plants and trees diseasesofcultiv00massuoft Year: [1910?] CRONARTIUM 319 CRONARTIUM (Fries.) Aecidia produced on conifer leaves (so far as known), peridia elongated, aecidiospores in chains. Uredospores pro- duced in a pseudoperidium, brown. Teleutospores i-celled, 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
RM2AJDC85–Elementary botany . Fig. 206.Wheat leaf with redrust, natural size. Fig. 207. Fig. 208. Fig. 209. Fig. 2to. Portion of eaf Natural size. Enlarged. Single darged to show sorus. Figs. 206, 207.—Puccinia graminis, red-rust stage (uredo stage).Figs. 208-210.—Black rust of wheat, showing sori of teleutospores. reddish-brown or reddish pustules, and is known as the redrust (figs. 206, 207). Another form occurs in elongated blackpustules, and this form is the one known as the black rust 187 188 MOKPHOLOG Y. (figs. 208-211). These two forms occur on the stems, blades,etc., of the wheat, also on oats,
RMPG3NKB–. Fungous diseases of plants : with chapters on physiology, culture methods and technique . Fungi in agriculture. PROTOBASIDIOMYCETES 431 produced in short chains and measure 24-28 x 18-21 fj, (Fig. 210,b). The uredesori occur on the under surface of the leaf. They are somewhat lighter colored than the casoma and are constantly inclosed by paraphyses. Individual spores are about the same in size and form, however, as the previous type (Fig. 210, c). In the same sori with the latter may be produced also the teleutospores,. Please note that these images are extracted from scanned page images tha
RMMCK5BM–. Fig. S6. — l'iicrii>ia suaccokns on Cirsiuni arvense. The plants are abnormally elongated ; the leaves have remained smaller and simpler, and are thickly beset on the lower side with patches of chocolate-brown uredospores. (v. Tubeuf phot.) P. eriophori Tliiini. Uredo- and teleutospores on Eriophonnn latifolium in Siberia and Denmark ; Eostrup gives as the aecidial form Aec. cinerariae Hostr. P. obscura Scluoet. Uredo- and teleutospores on Luzida; aecidia on Bellis perennis (Plowriglit). (Britain and U.S. America.) P. septentrionalis Juel. Uredo- and teleutospores on Folygornnn vivi- par
RMT1HWE1–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 390 UREDINEAE. In May or June the cushions swell up and become large brownish-yellow gelatinous clumps, dotted over with dark points, the teleutospores. Proniycelia arise from one or more germ- pores in each spore, and give off basidia with sporidia (basidio- Fio. 224.—Aecidia and Pycnidia of various species of Gt/mnoxporangium: G. tremelloides—1 and 3, aecidia on leaf of Pyrun Aria; 0 and fi, aeci
![. The rusts of Australia, their structure, nature, and classification . v Uredospores of P. juncophila from sorus containing both uredo and teleutosporeson ]uncus maritimus. 36. Teleutospores of the same. Pj.ati: I. OV s, zi f> C fc O ? .-• • o - -r -urn j (HI G. II. Robinson, Phot. Stock Photo](https://c8.alamy.com/comp/2CDDAHM/the-rusts-of-australia-their-structure-nature-and-classification-v-uredospores-of-p-juncophila-from-sorus-containing-both-uredo-and-teleutosporeson-uncus-maritimus-36-teleutospores-of-the-same-pjati-i-ov-s-zi-fgt-c-fc-o-o-r-urn-j-hi-g-ii-robinson-phot-2CDDAHM.jpg ". The rusts of Australia, their structure, nature, and classification . v Uredospores of P. juncophila from sorus containing both uredo and teleutosporeson ]uncus maritimus. 36. Teleutospores of the same. Pj.ati: I. OV s, zi f> C fc O ? .-• • o - -r -urn j (HI G. II. Robinson, Phot. Stock Photo")
RM2CDDAHM–. The rusts of Australia, their structure, nature, and classification . v Uredospores of P. juncophila from sorus containing both uredo and teleutosporeson ]uncus maritimus. 36. Teleutospores of the same. Pj.ati: I. OV s, zi f> C fc O ? .-• • o - -r -urn j (HI G. II. Robinson, Phot.
RMPG0NGH–. Beginners' botany. Botany. 194 BEGINNERS' BOTANY and serve to disseminate the fungus during the summer on other wheat plants or grasses. Late in the season, teleutospores are again produced, completing the life cycle of the plant. Many rusts besides Fucdnia graminis produce different spore forms on different plants. The phenomenon is called heterxcistii, and was first shovvn to exist in the wheat rust. Curiously enough, the peasants of Europe had observed and asserted that barberry bushes cause wheat to blight long before science explained the relation between the cluster-cups on barberry an
RMMCK59Y–. 'â 'â 'M 'â ''m ^liitlilfC Fig. 218. â Longitudinal section of a spore-cushion of GymnosporoMoium clo- viii-iiifformc. Somewhat diagrammatic. (After Woernle.) and during rain swell up into long club-shaped sporophores, containing long-stalked, spindle-shaped teleutospores, some thick- coated, some thin. The sporophores swell and ultimately form a common mass in which the teleutospores germinate. The spores have four germ-pores, each capable of giving off a promycelium with pointed sterigmata producing sporidia, which are cast loose and distributed by wind. Germination of sporidia takes place
RM2CDBWFR–. Introduction to the study of fungi, their organography, classification, and distribution for the use of collectors . o multiply themselves manytimes by budding, after the manner of yeast-spores, which isthe term applied to them by Brefeld, but liable to misinter-pretation. In order the better to comprehend the process, itmay be detailed as observed in Tilletia (Fig. 120). This parasiteproduces its teleutospores within the grains of wheat, and isknown to farmers as bunt.The appearance of the grainsexternally is very littlechanged, but slightly darkenedin colour, and when crushedare seen to be
RMPG4B26–. Diseases of plants induced by cryptogamic parasites : introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae . Plant diseases; Parasitic plants; Fungi. CALYPTOSPOEA. 373 host-epidermis, to germinate on the epidermis of another cowberry- shoot. The germ-tube either enters by a stoma, or forms an adhesion-disc and sends out a process from this through the epidermis.. Fig. 204.—Diseased stem of Vaccinium in a later stage than Fig. 203. In each epidermal cell (a, a) six mother-cells have been formed, each subdivided into four teleutospores. Promycelia (6) have develope
RMMCK648–. Fio. 196.—Caeoma 'pinitorquum. Section showing four pycnidia, from one of which (xj>) numerous conidia are being discharged. Caioma-pMches are developing beneath the cortical layer, as yet unbroken. (After R. Hartig.) occur in large numbers, an early fall of the leaf may result. The teleutospores hibernate in dead leaves on the ground. In spring the sporidia germinate and infect young shoots of Pinus sylvcstris, producing the disease known as Caeoma jnnitorquMm} This disease attacks pine-seedlings, appearing generally on the needles. It is most frequent in plantations from one to ten year
RM2CDD8MF–. The rusts of Australia, their structure, nature, and classification . omewhatspherical, and be divided longitudinally and obliquely, so as to resemblea Sfhaerofhragmium. The variation even in the same sorus is sometimesgreater than it is between some different species. PUCCINIA LUDWIGII. 300. Teleutospores may be divided generally as in the above, although the four- celled forms are not quite so frequent. PUCCINIA GRAMINIS. 301. Teleutospores are also one to four celled, but the septa are generally transverse, while the upper cell may occasionally be longitudinally divided. PUCCINIA TRITICIN
RMPG3NJA–. Fungous diseases of plants : with chapters on physiology, culture methods and technique . Fungi in agriculture. Fig. XXVIII. RUST OF POPLAR Melampsora tremula? Tul. Tulasne applied the above name to a rust of the poplar (Popidus tremula) occurring throughout a considerable range in Europe. It would seem that this name would now in- clude at least three forms, or species, as dis- tinguished by Klebahn, viz., Melampsora Pinitorqua Rostr., Melampsora Larici-tremula Kleb., and Melampsora Mag- nusiana Wagn. These. Fig. 214. Melampsora tremula*. : Uredospores and teleutospores. Please note that th
![. Fio. 21".—Section through a swelling on a sixteen-year twig of Juniper attacked by Gvmnosporancfium iu its eighth year; three conical spore-cushions are indicated, also a cushion-scar with the scar-tissue. (After Woerale.) Fig. 21 S.—Longitudinal section of a spore-cushion of Gymnosporonniinn cUi- viirinrfornu. Somewhat diagrammatic. (After Woernle.) and during rain swell up into long club-.shaped sporophores, containing long-stalked, spindle-shaped teleutospores, some thick- coated, some thin. The sporophores swell and ultimately form a common mass in which the teleutospores germinate. Stock Photo](https://c8.alamy.com/comp/MCK6F1/fio-21quotsection-through-a-swelling-on-a-sixteen-year-twig-of-juniper-attacked-by-gvmnosporancfium-iu-its-eighth-year-three-conical-spore-cushions-are-indicated-also-a-cushion-scar-with-the-scar-tissue-after-woerale-fig-21-slongitudinal-section-of-a-spore-cushion-of-gymnosporonniinn-cui-viirinrfornu-somewhat-diagrammatic-after-woernle-and-during-rain-swell-up-into-long-club-shaped-sporophores-containing-long-stalked-spindle-shaped-teleutospores-some-thick-coated-some-thin-the-sporophores-swell-and-ultimately-form-a-common-mass-in-which-the-teleutospores-germinate-MCK6F1.jpg ". Fio. 21".—Section through a swelling on a sixteen-year twig of Juniper attacked by Gvmnosporancfium iu its eighth year; three conical spore-cushions are indicated, also a cushion-scar with the scar-tissue. (After Woerale.) Fig. 21 S.—Longitudinal section of a spore-cushion of Gymnosporonniinn cUi- viirinrfornu. Somewhat diagrammatic. (After Woernle.) and during rain swell up into long club-.shaped sporophores, containing long-stalked, spindle-shaped teleutospores, some thick- coated, some thin. The sporophores swell and ultimately form a common mass in which the teleutospores germinate. Stock Photo")
RMMCK6F1–. Fio. 21".—Section through a swelling on a sixteen-year twig of Juniper attacked by Gvmnosporancfium iu its eighth year; three conical spore-cushions are indicated, also a cushion-scar with the scar-tissue. (After Woerale.) Fig. 21 S.—Longitudinal section of a spore-cushion of Gymnosporonniinn cUi- viirinrfornu. Somewhat diagrammatic. (After Woernle.) and during rain swell up into long club-.shaped sporophores, containing long-stalked, spindle-shaped teleutospores, some thick- coated, some thin. The sporophores swell and ultimately form a common mass in which the teleutospores germinate.
RM2CDC2XT–. Introduction to the study of fungi, their organography, classification, and distribution for the use of collectors . sne. ^nd couvcrscly the promycehal spores of Puccinia graminis (Fig 118) may be usedto inoculate the leaves of the berberry, and produce thereonAecidium herheridis. This is the theory and its application,which we will here leave as itstands. In another group, theBraclnj - pueciniae, spermogonia,uredospores, and teleutospores arefound on the same species of plant,but the aecidia are unknown. Tothis succeeds the Hcmi-fuecinia,in which uredospores and teleuto-spores occur on the
RMPG4B5W–. Diseases of plants induced by cryptogamic parasites : introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae . Plant diseases; Parasitic plants; Fungi. UROMYCES. 339 of pycnidia precedes that of teleutospores. The latter have a flattened concave base and rounded apex; their episporium is marked with delicate ribs running from apex to base.. FlQ. 181.—Vromvcts Teppenanus on twigs of ALbizzia montana brought by Prof. Stahl from Java. (v. Tubeuf phot.) Fuccinia. Teleutospores two-celled, and each abjointed from its own sporophore from large distinct sori. Each cell ha
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.
RM2CDC07E–. Introduction to the study of fungi, their organography, classification, and distribution for the use of collectors . , with long, sometimes verylong, pedicels. In Phragmosporae the teleutospores are three, or more,septate, in one direction. In most generathey are destitute of a pseudoperidium,whilst in Phragmidium^ (Fig. 119) andXenodochus the uredospores are solitary.The differences between these two generaare slight: in the former the teleutosporesare cylindrical, the cells not readily break-ing up into joints; in the latter the cellsare more numerous and moniliform, soonbreaking up into t
![. Diseases of plants induced by cryptogamic parasites : introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae . Plant diseases; Parasitic plants; Fungi. 368 UREDINEAE. M. salicis-capreae (Pers.) (Britain and U.S. America). Uredo- and teleutospores on leaves of Salix Caprea and several other species. According to Eostrup, OasorrM euonymi (Gmel.) is a stage of this.^ M. Hartigii Thiim."^ {M. epitea Thtim.) (Britain and U.S. America). Uredo- and teleutospores on leaves of Scdix pruinosa. S. daphnoides, S. mminalis, etc. Eostrup regards C rihesii Lk. of Ribes as a Stock Photo](https://c8.alamy.com/comp/PG4B2R/diseases-of-plants-induced-by-cryptogamic-parasites-introduction-to-the-study-of-pathogenic-fungi-slime-fungi-bacteria-amp-algae-plant-diseases-parasitic-plants-fungi-368-uredineae-m-salicis-capreae-pers-britain-and-us-america-uredo-and-teleutospores-on-leaves-of-salix-caprea-and-several-other-species-according-to-eostrup-oasorrm-euonymi-gmel-is-a-stage-of-this-m-hartigii-thiimquot-m-epitea-thtim-britain-and-us-america-uredo-and-teleutospores-on-leaves-of-scdix-pruinosa-s-daphnoides-s-mminalis-etc-eostrup-regards-c-rihesii-lk-of-ribes-as-a-PG4B2R.jpg ". Diseases of plants induced by cryptogamic parasites : introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae . Plant diseases; Parasitic plants; Fungi. 368 UREDINEAE. M. salicis-capreae (Pers.) (Britain and U.S. America). Uredo- and teleutospores on leaves of Salix Caprea and several other species. According to Eostrup, OasorrM euonymi (Gmel.) is a stage of this.^ M. Hartigii Thiim."^ {M. epitea Thtim.) (Britain and U.S. America). Uredo- and teleutospores on leaves of Scdix pruinosa. S. daphnoides, S. mminalis, etc. Eostrup regards C rihesii Lk. of Ribes as a Stock Photo")
RMPG4B2R–. Diseases of plants induced by cryptogamic parasites : introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae . Plant diseases; Parasitic plants; Fungi. 368 UREDINEAE. M. salicis-capreae (Pers.) (Britain and U.S. America). Uredo- and teleutospores on leaves of Salix Caprea and several other species. According to Eostrup, OasorrM euonymi (Gmel.) is a stage of this.^ M. Hartigii Thiim."^ {M. epitea Thtim.) (Britain and U.S. America). Uredo- and teleutospores on leaves of Scdix pruinosa. S. daphnoides, S. mminalis, etc. Eostrup regards C rihesii Lk. of Ribes as a
RMMCK63P–. f^' Fig. 217.—Section through a swelling on a sixteen-year twig of Juniper attacked by Gymnosporangium in its eighth year; three conical spore-cushions are indicated, also a cushion-scar with the scar-tissue. (After Woemle.) Fig. -ils. —Lmigitudiual section of a spore-cushion of Gymnosporanqhnn eld- vnriitcforme. Somewhat diagrammatic. (After Woernle.) and during rain swell up into long club-shaped sporophores, containing long-stalked, spindle-shaped teleutospores, some thick- coated, some thin. The sporophores swell and ultimately form a common mass in which the teleutospores germinate. The
RM2CDC6PJ–. Introduction to the study of fungi, their organography, classification, and distribution for the use of collectors . ctly known species. The two genera inwhich the uredospores are included in a pseudoperidium areMelampsora and Melampsorella, very closely related—the soriof the teleutospores being crust-like, blackish, and determinatein the former; flattened, indeterminate, and pallid in the RUST FUNGI—UREDINEAE 245 latter. In the one remaining genus of the section, that ofCronartium, the teleutospores surround a vertical columella,but in external appearance the species resemble Ureclinesas l
RMPG40JJ–. The elements of botany embracing organography, histology, vegetable physiology, systematic botany and economic botany ... together with a complete glossary of botanical terms. Botany. iiredo-spores germinate quickly, and from their mycelium other uredo-spores are produced, and this process may con- tinue a great length of time. Finally, from the same mycelium, are produced (Fig. 259) thick-walled, brown or black spores, called teleutospores (Gr. teleuta, end), which may be one-celled (as in Uromyces and Melamp- Bord), two-celled (as in Pucdnia, Fig. 259; and Podisoma,. Fig. 258. Rust on Whea
RMMCK5AT–. Fig. 194.—Pkrarjiuidhmi subcorliduni on a Rose leaf. The black spots are teleutospore-patches on the under- surface of the leaf. (v. Tubeuf del.) Fig. 103.—Triphragmitim ulmariae on Spiraea Ubnaria. Germinating teleuto- spore, with proniycelia and sporidia. (After Tulasue.) teleutospores are produced in loose patches. The aecidial patches have no covering, but are surrounded by club-shaped paraphyses. The genus frequents only Rosaceae. On species of Hosa: ^ Phragmidium subcorticium (Schrank.). Teleutospores, uredospores, and aecidia on leaves of wild and cultivated roses. (Britain and U.S. A
RM2CHEDPA–. Cyclopedia of American horticulture, comprising suggestions for cultivation of horticultural plants, descriptions of the species of fruits, vegetables, flowers and ornamental plants sold in the United States and Canada, together with geographical and biographical sketches, and a synopsis of the vegetable kingdom . 2221.Colonies of Ruston the stem ofwheat. 2222.The cluster - cupstage of thewheat Rust fun-gus growing ona barberry leaf. forms, delimited by differences in the marked capacityof the uredo- or teleutospores to inoculate on differenthosts. Several rusts are common on cultivated plan
RMPG4AXX–. Diseases of plants induced by cryptogamic parasites : introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae . Plant diseases; Parasitic plants; Fungi. 390 UREDINEAE. In May or June the cushions swell up and become large brownish-yellow gelatinous clumps, dotted over with dark points, the teleutospores. Promycelia arise from one or more germ- pores in each spore, and give off basidia with sporidia (basidio-. FiG. 224.—Aecidia and Pycnidia of various species of Gyninosporangium : G. tremetloides—1 and S, aecidia on leaf of Pyrvs Ai-ia ; 5 and 6, aecidia on leaf of P
RMMCK642–. Fig. 194.—Phrdf/riiidhim sitbcortichim on a Rose leaf. The black spots are teleutospore-patches on the under- surface of the leaf. (v. Tubeuf del.) Fl(j. 103.— TriphragnuuM ulmnriae on Spiraea Uhiutna. Germinating teleuto- spore, with proniycclia and sporidia. (After Tulasne.) teleutospores are produced in loose patches. The aecidial patches have no covering, but are surrounded by club-shaped paraphyses. The genus frequents only Eosaceae. On species of Bosa:'^ Phragmidium subcorticium (Schr'ank.). Teleutospores, uredospores, and aecidia on leaves of wild and cultivated roses. (Britain and U.
RM2CDCAKT–. Fungous diseases of plants, with chapters on physiology, culture methods and technique . Fig. 214. Melampsora trea/c/^.-e : Uredospores AND TeLEUTOSPORES 438 FUNGOUS DISEASES OF PLANTS three forms, together with one discussed by Klebahn as Melamp-sora Rostriipii Wagn., all agree in having more or less sphericaluredospores, and in no case are there marked morphological dif-ferences in the uredospores or teleutospores within this group. Thecaeoma stages have, however, been determined, for these forms, tooccur respectively upon Pinus, Larix, Chelidonium and Corydalis,and Mercurialis. For our pu
RMPG4B1T–. Diseases of plants induced by cryptogamic parasites : introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae . Plant diseases; Parasitic plants; Fungi. Fig. 204.—Diseased stem of Vaccinium in a later stage than Fig. 203. In each epidermal cell (a, a) six mother-cells have been formed, each subdivided into four teleutospores. Promycelia (6) have developed from many of tbe latter, and are in process of abjointing ofE the sporidia from lateral sterigmata. X 420. (After R. Hartig.). Fig. 205.—Calypiospora Goeppertiana. Aecidia on the under surface of needles of Silver
RMMCK5B3–. Jr^o' Fig. 196.—Cneoma pinitorquum. Section showing four pycnidia, from one of which {!<p) numerous conidia are being discharged. Cai/ouirt-patches are developing beneath tlie cortical layer, as yet unbroken. (After R. Hartig.) occur in large numbers, an early fall of the leaf may result. The teleutospores hibernate in dead leaves on the ground. In spring the sporidia germinate and infect young shoots of Finns sylvestris, producing the disease known as Cacowa i^initorquum} This disease attacks pine-seedlings, appearing generally on the needles. It is most frequent in plantations from one
RM2CDCAYE–. Fungous diseases of plants, with chapters on physiology, culture methods and technique . measure20-36 X 14-20/x. Paraphyses are abundant. Tranzschel deter-mined that uredospores kept over winter at St. Petersburg werecapable of germination the following spring. The teleutospores generally appear in small groups among theuredospores and later supplant these entirely. The pustules aregenerally pulverulent and chestnut-brown. The teleutospores arefrom very light to reddish brown upon the different hosts. Ingeneral form they are elliptical, deeply constricted, and the twocells are more or less e
RMPG3NK9–. Fungous diseases of plants : with chapters on physiology, culture methods and technique . Fungi in agriculture. Fig. 210. Phragmidium subcorticium a and d, caeoma and teleuto stages on rose ; b: c, and e, spore forms usually in small black groups. A teleutospore is more or less spindle-shaped, usually six to eight cells in extent (Fig. 210, e), and each cell is provided with several germ pores. The outer wall of the spore is generally uneven or warty toward the apex, and there is a distinct terminal papilla. The teleutospores measure 65-100 x 30-45 x without the pedicel. The pedicel is pers
RMMCK6JC–. Fio. 186.—Puccinia suavcolens on Cirsium arvense. The plants are abnormally elongated ; the leaves have remained smaller and simpler, and are thickly beset on the lower side with patches of chocolate-brown uredospores. (v. Tubeuf phot.) P. eriophori Thiim. Uredo- and teleutospores on Eriophorum latifolium in Siberia and Denmark ; Rostrup gives as the aeeidial form Aec. ciuerariae Rostr. P. obscura Schroet. Uredo- and teleuto.spores on Luzula; aecidia on Dellis perennis (Plowriglit). (Britain and U.S. America.) P. septentrionalis Juel. Uredo- and teleuto.spores on Polygonum vivi- parum; aecid
RM2CDCAY1–. Fungous diseases of plants, with chapters on physiology, culture methods and technique . he genus Gymnosporangium, Aside from a direct agreement inthe sequence of spore forms, and in the general relations of theseforms one to another in the different species, all have the samespore forms, namely, spermogonia, aecidia, and teleutospores ; andin the different species the same spore forms appear in almostthe identical season. PROTOBASIDIOMYCETES 423 There are about fifteen species of these fungi, all but one ofwhich have the aecidial or rust stage (Roestelia) on some memberof the tribe Pomeae,
![. Elementary botany . I Fig- i45« Fig. 146. Fig. 147. Fig. 148. Fig. 149. Wheat leaf with red Portion of leaf Natural size. Enlarged. Single rust, natural size. enlarged to show sorus. Figs. 145, 146.—Puccinia graminis, red-rust stage (uredo stage). Figs. 147-149.—Black rust of wheat, showing sori of teleutospores. reddish-brown or reddish pustules, and is known as the " red rust" (figs. 145, 146). Another form occurs in elongated black pustules, and this form is the one known as the, "black rust" 129 Stock Photo](https://c8.alamy.com/comp/MA7392/elementary-botany-i-fig-i45-fig-146-fig-147-fig-148-fig-149-wheat-leaf-with-red-portion-of-leaf-natural-size-enlarged-single-rust-natural-size-enlarged-to-show-sorus-figs-145-146puccinia-graminis-red-rust-stage-uredo-stage-figs-147-149black-rust-of-wheat-showing-sori-of-teleutospores-reddish-brown-or-reddish-pustules-and-is-known-as-the-quot-red-rustquot-figs-145-146-another-form-occurs-in-elongated-black-pustules-and-this-form-is-the-one-known-as-the-quotblack-rustquot-129-MA7392.jpg ". Elementary botany . I Fig- i45« Fig. 146. Fig. 147. Fig. 148. Fig. 149. Wheat leaf with red Portion of leaf Natural size. Enlarged. Single rust, natural size. enlarged to show sorus. Figs. 145, 146.—Puccinia graminis, red-rust stage (uredo stage). Figs. 147-149.—Black rust of wheat, showing sori of teleutospores. reddish-brown or reddish pustules, and is known as the " red rust" (figs. 145, 146). Another form occurs in elongated black pustules, and this form is the one known as the, "black rust" 129 Stock Photo")
RMMA7392–. Elementary botany . I Fig- i45« Fig. 146. Fig. 147. Fig. 148. Fig. 149. Wheat leaf with red Portion of leaf Natural size. Enlarged. Single rust, natural size. enlarged to show sorus. Figs. 145, 146.—Puccinia graminis, red-rust stage (uredo stage). Figs. 147-149.—Black rust of wheat, showing sori of teleutospores. reddish-brown or reddish pustules, and is known as the " red rust" (figs. 145, 146). Another form occurs in elongated black pustules, and this form is the one known as the, "black rust" 129
RM2CEGGH4–. The Gardeners' Chronicle : a weekly illustrated journal of horticulture and allied subjects. eterce:ioas Uredinese belong to thegeiius Puccinia, and in this group it is a noteworthyfact that the uredospores and teleutospores in allthe species described are only to be found on mono-cotyledons—generally grasses, sedges, or rnshes. A somewhat remarkable exception, however, hasfallen under my notice. The species referred to isPuccinia Bistortse, Ser. = Puccinia Bistortaa, DC,which is classed in Plowrights Monograph of theBritish Urcdinem and Uitilaginem under Hemi-pucciaia, a group that is suppo
RMMCK6H9–. Fig. 194.—Phrut/midium subcorticium on a Rose leaf. The black spots are teleutospore-patches on the uuder- sm-face of the leaf. (v. Tubeuf del.) Fig. 103.—Triphragnuv.m v.lmarine on S/>iiv«rt Ulmaria. Germinating teleuto- spore, with promycelia and sporidia. (After Tulasne.) teleutospores are produced in loose patches. The aecidial patches have no covering, but are surrounded by club-shaped paraphyses. The genus frequents only Eosaceae. On species of Rosa: ^ Phragmidium subcorticium (Schrank.). Teleutospores, uredospores, and aecidia mi leaves of wild and cultivated roses. (Bi'itaiu and U
RM2CDCAP3–. Fungous diseases of plants, with chapters on physiology, culture methods and technique . Exp. Sta. Rept. (1907): 369-396. pis. 23-32. Occurrence. Of the several species of Coleosporium havinguredospores and teleutospores on species of Compositae, there isnone of such common occurrence throughout North America asthe species here discussed. To this species are referred the orangerusts of many species of Aster and Solidago (golden-rod). It in-cludes also as hosts representatives of several other genera, amongwhich is the cultivated aster {CallistepJuis hortensis). This fungusis by many regarded
RMMCKCB5–. Fig. 90.—Piicciniapruni. i, portion of diseased plum leaf; 2, teleutospore ; 3, paraphysis ; 4, lower cell and portion of pedicel of a teleutospore, from which the upper cell has broken away ; 5, uredospore. Fig. i reduced, remainder highly mag. nature of the various kinds of reproductive bodies produced by this species has existed until recently, when the matter has been thoroughly worked out and put right by Professor M'Alpine. Uredospores varying from almost globose to piriform, smooth, apex conspicuously thickened, 18-36 X 14-18^1; para- physes numerous. Teleutospores formed of two almos
RM2CDD9K9–. The rusts of Australia, their structure, nature, and classification . OPHYLLACEAE, AND ZYGOPHYLLACEAE. 278 Explanation of Plates. PLATE XIX. {All Figures X 250 unless otherwise stated.) UROMYCES.Fig. 158. Teleutospores, seen from above, of Uromyces fusisporus on Acacia ncnifclia. 159. Side view of same. 160. Uredospores of same, with pronounced apiculus and equatorial band of germ pores. UROMYCLADIUM. 161. Teleutospores of Uromycladium simplex on Acacia pyenantha, part of the pedicel being still attached with the remains of the vesicle. (Stained). 162. Young teleutospores of the same showing
![. 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 Stock Photo](https://c8.alamy.com/comp/MCKCAB/fquotlg-95gymttoiporangium-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-MCKCAB.jpg ". 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 Stock Photo")
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
RM2CDD930–. The rusts of Australia, their structure, nature, and classification . G. II. Robinson, Phot. UREDO. Explanation of Plates. PLATE XXIX. (All Figures X 250.) ADDENDA TO PUCCINI A.Fig. 250. Uredospores and lelcutospores of Puccinia menthae on Metitha fulegium. 251. Uredospores of P. ehrysanihemi on Chrysanthemum indicum, from New South Wales. 252. Isolated teleutospore found associated with the same. 253. Uredospores and teleutospores of P. chrysanthemi on Chrysanthemum cult., Japan. (Herbarium A. Ideta.) 254. Abnormal teleutospore associated with uredospores and teleutospores of same. 255. Mes
RMMCKCAK–. -^r^^- Fig. g-i.—Phra^midium riibi-idafi. i, pustules and teleuto- spores on under surface of raspberry leaf; 2, tcleutospore; .. 1 :.i:—. - chains of warted spores ; 3, section through an accidiuni b, paraphyses ; 4, uredospores. highly mag. Fig. I nat. size, remainder Spraying with potassium sulphide arrests the spread of the disease, li Bordeaux mixture is used it must be diluted, or the foliage will be scorched. Diseased leaves that have fallen should be swept up and burned. XENODOCHUS (Schlecht.) Teleutospores pedicellate, many-celled, cylindrical, brown, forming large blackish spore-cl
RM2CDD9YE–. The rusts of Australia, their structure, nature, and classification . (J. H. Itoliin-oii, lhot PUCCINIA. CARYOPHYLLACEAE, MALVACEAE, and GERANIACEAE. 266 Explanation of Plates. Fig. 106. 108. PLATE XIII. {All Figures X 250 unless otherwise stated.)PUCCINIA. Teleutospores of Pitccinia eriostemonis on Eriostcmon myoporoidrs. Teleutospores of P. correae on Correa lawrenciana. Teleutospores and mesospores of P. boroniae on Boronia s-pinescens. Teleutospores and mesospores of P. ?pritzeliana on Tremandra sielligcra, someteleutospores having germinated. lorj. Teleutospores of P. hedcraceae on Viol
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
RM2CDD9FF–. The rusts of Australia, their structure, nature, and classification . ONGIFOLIA. 284 Explanation of Plates. PLATE XXII. {All Figures X 250 unless otherwise stated.) UROMYCLADIUM.Fig. 185, 186. Uredospores of U. robinsoni on Acacia melanoxylon. The solitary largesmooth-walled spore (?) in Fig. 186 is difficult of interpretation. 187. Young and mature leleutospores of same, with and without attached vesicles. - med.) 188. Mature teleutospores of same, with vesicles. 189. Mature teleutospore of same germinating, the sporidiola just about to be formed. (Stained.) 190. 191, rr)2. Successive stage
RMMCK5B5–. Fio. 102.—Puccinia malvacearum. Mallow leaf, with teleutospore-sori. Three teleutospores, one germinating, (v. Tubeuf del.) May or June on the leaves, stems, and petioles of the host; all are more or less deformed, and the leaves may in severe cases wither up long before the flowers appear. Sponging with a solution of permanganate of potash (two tablespoonfuls in one nuart of water), has been found an eflective remedy. P. Sherardiana Korn. On mallow in America. P. heterogenea Lager. On hollyhock in South America. P. anemones-virginianae Schwein. On Anemone. (U.S. America.)
RM2CDD99C–. The rusts of Australia, their structure, nature, and classification . fsora -phyllcdiorum B. and Br.,from Herbarium of F. M. Bailey, Government Botanist, Queensland.) 219. One of the very sparse digitate teleutospores present in the same material. 220. Uredospore from the same material ... ... ... ... x 500 (All the above from old and much faded material.) --.I, 222. Uredospores of V. fhyllodiorum, on Acacia sp. from Queensland. (Typematerial of Uromyces fhyllodiae Ccoke rnd Mass., these uredospores beingdescribed as teleutospores. From Herbarium of F. M. Bailey.) 223, 224. Two of the few di
RMMCKC97–. Fig. ioo.—Gcrniin.iiing spores of species of Ustilaginaceae. I, Ustilago ariindinellae; 2, Tillctia decipiens, the secondary spores producing tertiary spores ; 3, Tilletia sonata. All highly mag. (.After Brefeld.) known as 'smuts' and 'bunts.' Teleutospores only are known in this group. In some instances infection takes place in the earliest seed- ling stage of the host-plant, the spores being present in the soil, or adhering to the seed when sown, as in oats. In other instances infet tion occurs in the flower, spores being deposited on the stigma, and a myceliimi is found in the ovary, as i
RM2CDDA76–. The rusts of Australia, their structure, nature, and classification . emcni on Afium fros- tratum, showing thickened apex of uredospore and slight warting of teleuto-spore. Beaumaris, Victoria. 69. Uredospores and teleutospores from same, but in greater variety. 70. One uredospore and two teleutospores from the same, but more highly magnified, and showing more clearly the roughened epispore of both uredo and teleuto-spores ... ... ... ... ... ... ... ... x 500 71. Teleutospores of P. thuemeni on Afium graveolens, from Brighton, Victoria. 72. Uredospore and teleutospore from the same as 71, s
RMMCK6HC–. Fig. 102.—Pvccinia inalvoxearum. Malluw lc:vf, with teleutosijore-sori. Three teleutospores, one germinating, (v. Tubeuf del.) May or June on the leaves, stems, and petioles of the host; all are more or less deformed, and the leaves may in severe cases wither up long before the flowers appear. Sponging with a solution of permanganate of potash (two tablespoonfuls in one quart of water), has been found an effective remedy. P. Sherardiana Korn. On mallow in America. P. heterogenea Lager. On hollyhock in South America. P. anemones-virginianae Schwein. On Anemone. (U.S. America.)
RM2CDDA40–. The rusts of Australia, their structure, nature, and classification . gures X 250.)PUCCINI A. Fig.77. Teleutospore of Puccinia oliganthae on As ferula ohganlha. -8. Teleutospores, some having germinated, of P. cofrosmae, en Coprosma hirtella. 79. Uredospore> and teleutospores of P. efilobii-tctragoni on Efilobium glabelluni, Murramurrangbong Ranges, Victoria. 80. Uredospores and teleutospores of P. efilobii-tetragoni on Efilobium montanum. (Sydow, Uredineen, 1369.) Si. Teleutospores of P. efilobii DC. on Efilobium roseicm, the teleutospores havingmuch thinner walls, and being more variabl
RMMCK63N–. Fig. 200.âMilamijsorii salicis-mpr((i<. Section through leaf of Salix Caprca, with a uredospore-sorus on the lower epidermis ; on the upper side a teleutospore- sorus is in process of development, but is as yet completely closed over. (After Tulasne.) M. repentis Plowr.^ Uredo- and teleutospores on Salir repens. Caeoma oil OrcIiiH marulata. (The Caeoma orchidis of other orcliids is probably identical with this one.) M. arctica Rostr. on Salix Iterhacea, S. glauat, and S. groenlaiidiva in Greenland. M. mixta (Schlecht). (Britain). The related Caeoma is unknown. Thiinien also gives M. Casta
RM2CDD9AJ–. The rusts of Australia, their structure, nature, and classification . G. H. Robinson, Phot. X 250 & 500. UROMYCES PHYLLODIORUM. LEGUMINOSAE-ACACIA. 292 Explanation of Plates. PLATE XXVI. (All Figures X 250 mil ess otherivise stated.) PHRAGMIDIUM, MELAMPSOR V Fig. 229. Aecidiospores of Phr. subcorticiitm on Rosa rubignosa. 230. Uredospores of same. 231. 232. Teleutospores of same. 233. Twig of Rosa rubiginosa, the uppermost shoot of which is swollen and dis- torted bv the aecidia of Phr. subcorticium. ... ... ... nat. size 234, 23s. Teleutospores and uredospore of P. barnardi on Rubus parvifa
![. Pig. 200.—Mifampsora salicis-capreae. Section through leaf of Salix Caprea] with a uredospore-sorus on the lower epidermis ; on the upper side a teleutospore- sorus is in process of development, but is as yet completely closed over. (After Tulasne.) M. repentis Plowr.-' Uredo- and teleutospores on Salix repens. Caeoma on Orchis maeulaki. (The Caeoma orchidis of other orchids is probably identical with this one.) M. arctica Rostr. i>n Salix herhacea, S. glauca, and S. groenlandica in Greenland. M. mixta (Schlecht). (Britain). The related Caeoma is unknown. Thunien also gives M. Castagnei T Stock Photo](https://c8.alamy.com/comp/MCK5AJ/pig-200mifampsora-salicis-capreae-section-through-leaf-of-salix-caprea-with-a-uredospore-sorus-on-the-lower-epidermis-on-the-upper-side-a-teleutospore-sorus-is-in-process-of-development-but-is-as-yet-completely-closed-over-after-tulasne-m-repentis-plowr-uredo-and-teleutospores-on-salix-repens-caeoma-on-orchis-maeulaki-the-caeoma-orchidis-of-other-orchids-is-probably-identical-with-this-one-m-arctica-rostr-igtn-salix-herhacea-s-glauca-and-s-groenlandica-in-greenland-m-mixta-schlecht-britain-the-related-caeoma-is-unknown-thunien-also-gives-m-castagnei-t-MCK5AJ.jpg ". Pig. 200.—Mifampsora salicis-capreae. Section through leaf of Salix Caprea] with a uredospore-sorus on the lower epidermis ; on the upper side a teleutospore- sorus is in process of development, but is as yet completely closed over. (After Tulasne.) M. repentis Plowr.-' Uredo- and teleutospores on Salix repens. Caeoma on Orchis maeulaki. (The Caeoma orchidis of other orchids is probably identical with this one.) M. arctica Rostr. i>n Salix herhacea, S. glauca, and S. groenlandica in Greenland. M. mixta (Schlecht). (Britain). The related Caeoma is unknown. Thunien also gives M. Castagnei T Stock Photo")
RMMCK5AJ–. Pig. 200.—Mifampsora salicis-capreae. Section through leaf of Salix Caprea] with a uredospore-sorus on the lower epidermis ; on the upper side a teleutospore- sorus is in process of development, but is as yet completely closed over. (After Tulasne.) M. repentis Plowr.-' Uredo- and teleutospores on Salix repens. Caeoma on Orchis maeulaki. (The Caeoma orchidis of other orchids is probably identical with this one.) M. arctica Rostr. i>n Salix herhacea, S. glauca, and S. groenlandica in Greenland. M. mixta (Schlecht). (Britain). The related Caeoma is unknown. Thunien also gives M. Castagnei T
RM2CDD9YW–. The rusts of Australia, their structure, nature, and classification . <;. II. Robinson, Phot. x -50- PUCCINiA.FICOIDEAE, POLYGONACEAE, and CHENOPODIACEAE. 264 /Explanation of Plates. PLATE XII. [All Figures X £50.) PUCCINIA.Fig. 97. Teleutospores of Puccinia arenariae on Stellaria media. 98. Teleutospores of P. flagianthi on Plagianthus sidoides, the epispore being slightly channelled. 99. Teleutospores (stained; of P. malvacearum on Malva rotundifi 100. Teleutospores and mesospore of P. malvacearum on Lavatcra flfbcia. 101. Teleutospores, mostly one-celled, of P. liettrospora on Abutilon
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
RM2CDDACE–. The rusts of Australia, their structure, nature, and classification . I I from a On ? G. II Robinson, Ihot x 250 PUCCINIA. APOCYNACEAE, GOODENIACEAE, and CAMPANULACEAE. 254 Explanation of Plates. PLATE VII. (All Figures X J50.)PUCCINIA. rig. 52. Teleutospores and mesospores of Puccinia tasmanica on Senccio vulgaris, one teleutospore being three-celled. 53. Teleutospores and mesospores of P. angustijoliae on Scorzonera angustijolia. 54. 55. Sections of teleutosori of P. lagcnefhorac on Lagenofhora billardieri, show- ing mesospores and teleutospores. 56. Teleutospores and mesospoies of P. heli
RMMCK64B–. Fig. 102.—Puccinia malvacearum. Mallow leaf, with teleutospore-sori. Tliree teleutospores, one germinating, (v. Tubeuf del.) May or June on the leaves, stems, and petioles of the host; all are more or less deformed, and the leaves may in severe cases wither up long before the flowers appear. Sponging with a solution of permanganate of potash (two tablespoonfuls in one quart of water), has been found an effective remedy. P. Sherardiana Koni. On mallow in America. P. heterogenea T.ancr. On linllylioek in South America. P. anemones-virginianae .Scliwein. On Anemone. (U.S. America.)
RM2CDDAPY–. The rusts of Australia, their structure, nature, and classification . G. H. Robinson, Phot, PUCCINIA. GRAMINEAE. 246 Explanation of Plates. PLATE III. (All Figures X 250.) PUCCINIA. Fig. 20. Section of teleutosorus of Fuccinia anlhoxanthi on Anthoxanthum odoratum, one- spore with a septate pedicel laterally inserted. 21. Group of teleutospores of the same, one with a much inflated pedicel. 22. Teleutospores of F. foarum on Poa annua. 23. Teleutospores of P. perplexans on Alofecurus geniculates. 24. Teleutospores of P. cynodonlis on Cynodon dactylon. rtion of teleutosorus of P. agropyri on Ag
RMMCK62H–. Fig. 2^il—Gi/iiinos/>orunpium xnbinae on twigs of Junipirux Sidjimi, at the time nf lilicnitiou of spores, (v. Tubeuf i>hot.) twigs and scale-leaves. These bodies absorb water, swell, and run together, forming transparent gelatinous masses (Figs. 230 and 231). The teleutospores resemble those of G. junipcrinum, but liave only four germ-pores; they germinate on the gelatinous masses, and produce promycelia and sporidia. The latter germinate at once, chiefly on leaves of Pyrus com- munis. The pycnidia are produced on the upper epidermis as sticky yellow spots bearing darker dot-like pycn
![. The rusts of Australia, their structure, nature, and classification . PUCCINIA. CYPERACEAE and JUNCACEAE. 1 2 .250 Explanation of Plates. PLATE V. {All Figures X 250.) PUCCINIA.Fig.37. Teleutospores and mesospores of Puccinia wurmbeae on Wurmbea dioica ]S. Uredospores of P. bur chardiae on Burchardia umbellata. 39. Teleutospores, one three-celled, of the same. .40. Teleutospores and mesospores of P. haemodori on Haemodorum sp. 41. Teleutospores and mesospores of P. hyfoxidis on Hyfoxis glabella. 42. Teleutospores, two three-celled, of P. dichondrae on Dichondra re-pens. 43. Teleutospore and Stock Photo](https://c8.alamy.com/comp/2CDDAGP/the-rusts-of-australia-their-structure-nature-and-classification-puccinia-cyperaceae-and-juncaceae-1-2-250-explanation-of-plates-plate-v-all-figures-x-250-pucciniafig37-teleutospores-and-mesospores-of-puccinia-wurmbeae-on-wurmbea-dioica-s-uredospores-of-p-bur-chardiae-on-burchardia-umbellata-39-teleutospores-one-three-celled-of-the-same-40-teleutospores-and-mesospores-of-p-haemodori-on-haemodorum-sp-41-teleutospores-and-mesospores-of-p-hyfoxidis-on-hyfoxis-glabella-42-teleutospores-two-three-celled-of-p-dichondrae-on-dichondra-re-pens-43-teleutospore-and-2CDDAGP.jpg ". The rusts of Australia, their structure, nature, and classification . PUCCINIA. CYPERACEAE and JUNCACEAE. 1 2 .250 Explanation of Plates. PLATE V. {All Figures X 250.) PUCCINIA.Fig.37. Teleutospores and mesospores of Puccinia wurmbeae on Wurmbea dioica ]S. Uredospores of P. bur chardiae on Burchardia umbellata. 39. Teleutospores, one three-celled, of the same. .40. Teleutospores and mesospores of P. haemodori on Haemodorum sp. 41. Teleutospores and mesospores of P. hyfoxidis on Hyfoxis glabella. 42. Teleutospores, two three-celled, of P. dichondrae on Dichondra re-pens. 43. Teleutospore and Stock Photo")
RM2CDDAGP–. The rusts of Australia, their structure, nature, and classification . PUCCINIA. CYPERACEAE and JUNCACEAE. 1 2 .250 Explanation of Plates. PLATE V. {All Figures X 250.) PUCCINIA.Fig.37. Teleutospores and mesospores of Puccinia wurmbeae on Wurmbea dioica ]S. Uredospores of P. bur chardiae on Burchardia umbellata. 39. Teleutospores, one three-celled, of the same. .40. Teleutospores and mesospores of P. haemodori on Haemodorum sp. 41. Teleutospores and mesospores of P. hyfoxidis on Hyfoxis glabella. 42. Teleutospores, two three-celled, of P. dichondrae on Dichondra re-pens. 43. Teleutospore and
RMMCK64P–. l-'iii. h>i. — l'iixfiiiM soMAtolins on Cirsiain urvensc. Tlie plants are abnormally elongated ; the leaves have remained smaller and simpler, and are thickly beset on the lower side with patches of chocolate-brovrn iiredospores. (v. Tubeuf phot.) P. eriophori Tlilini. Uredo- and teleutospores on Eriophorum latifolmm in Siberia and Denmark ; Rostrup gives as the aecidial form Aec. cinerariae Kostr. P. obscura Schroet. Uredo- and teleutospores on Luzula; aecidia on Ikllis perennis (Plowriglit). (Britain and U.S. America.) P. septentrionalis Juel. Uredo- and teleuto.spores on Polygonum vir
RM2CDCANB–. Fungous diseases of plants, with chapters on physiology, culture methods and technique . Fig. 211. Cronartium Ribicola a, sori on currant leaf; b, sorus and teleutosporic column ; c and d,uredospores and teleutospores 1 During June, 1909, the aecidial stage of this fungus was found in a nurseryof three-year-old white pine seedlings imported from Germany. Many seedlingsof this importation have been distributed to several northeastern states and toCanada. A determined effort is being made to inspect all plantings, to destroythe diseased stock, and also to prevent further importation of the inf
RMMCK6HA–. Fie. 196.—Caeoma piniiorquum. Section showing four pycnidia, from one of which (.tp) numerr)us conidia are being disch;irged. Cfnom/i-TpMches are developing beneath tlic cortical layer, as yet unbroken. (After R. Hartig.) occur in large numbers, an early fall of the leaf may result. The teleutospores hibernate in dead leaves on the ground. In spring the sporidia germinate and infect young shoots of Pinus sylvcstris, producing the disease known as Caeoma j^initcn'quvm} This disease attacks pine-seedlings, appearing generally on the needles. It is most frequent in plantations from one to ten y
RM2CDD9RT–. The rusts of Australia, their structure, nature, and classification . G. H. Robinson, Phot. UROMYCES GRAMINEAE, LILIACEAE AND ORCHIDACEAE- 274 Explanation of Plates. PLATE XVII. {All Figures X 250.) UROMYCES.Fig. 140. Group of teleutospores of Uromyces -puccinioides on Selliera radicans. 141. Teleutospores of U. asperulae on Asperula oligantha. 142. Uredospores and teleutospores of U. trifolii on Trifolium refens. 143. Uredospores of U. hardenbergiae on Hardenbergia monofhylla.ii,A. Teleutospore of the same. 145. Two uredospores of same at top and one teleutospore below. 146. Section of tele
RMMCK62J–. Fig. 231.—Lougitudinalscctiou through a conical teleutospore-sorus of Gymno- sporangium Sabinae. (After Woernle.) Fio. 2;i2.—Teleutospores of 0. mbiiwr. The elongated thin-walled ones arc lighter in colour than the thick-walled. (After WoenUe.) Infections on various hosts with Gymno>ipumn(jium sabinae from JwiiiJem.s Sahina gave: Spore-form. Authoritv. I On Host-plant. Pyrus communis, Crataegus Oxyacantha, Mespilus gennan ica, - Pynis communis, Pyrus communis, „ Mic/iau.rii, „ tomentosa, Pyrus commicnis, Pyrus communis, Crataegus Oxyacantha, (0 Postelia cancellata. Plowrifrht. Oerstedand
RM2CDD9PT–. The rusts of Australia, their structure, nature, and classification . n G. II. Robinson, Phot. X 50. UROMYCES. GOODENIACEAE, RUBIACEAE, LEGUMINOSAE, AND CHENOPODIACEAE 276 Explanation of Plates. PLATE XVIII. (All Figures X 250 u?iless otherwise stated.) UROMYCES.Fig. 150. Uredospores of Uromyccs folygoni on Polygonum aviculare. 151. Teleutospores of same. 152. Uredospores of U. caryofhyllinus on Dianthus caryo-phyllus, with prominent scattered germ pores. 153. Teleutospores and one uredospore of same. 154. Section through leaf of Dianthus caryofhyllus, showing uredosorus of U. caryo- fhyllin
RMMCK6GY–. Fig. 200.—Mi lampsoni salifix-caprfaf. Section through leaf of SaUx Caprea, with a uredospore-sorus on the lower epidermis ; on the upper side a teleutospore- sorus is in process of development, but is as yet completely closed over. (After Tulasne.) M. repentis Plowr.^ Uredo- and teleutospores on Salix repens. Caeoma on Orchis maculata. ' (The Caeoma orchidis of other orchids is probably identical with this one.) M. arctica Eostr. on S(di.i- lierhacea^ S. c/lauca, and .S'. groenlandica in Oreenland. M. mixta (Schlecht). (Britain). The related Caeoma is unknown. Thiimen also gives M. Castagne
RM2CDDAFT–. The rusts of Australia, their structure, nature, and classification . % G. U. Robinson, Phot. x 250. PUCCINIA. LILIACEAE, HAEMODORACEAE, AMARYLLIDEAE, and ACANTHACEAE. 2^2 Explanation of Plates. PLATE VI. (All Figures X 250.) PUCCINIA.Fig. 45. .roup of teleutospores of Puccinia carissae on Carina ovata. 46. Section of teleutosorus of P. alyxiae on Alyxia buxijolia, with telcutospores .irnl mesospores. 47. Telcutospores of P. gilgiana on Leschcnaultia linarioides. 48. 49. Telcutospores and mesospores of P. saccardoi on Goodenia geniculate 50. Teleutospores and mesospores of P. brunoniae on Br
RMMCKCBX–. Fig. 85. — Uromyces coh/iui. i, portion of a diseased Colchicum leaf; 2, teleutospores, one of vvhicli has germinated and produced a promycelium bearing three secondary spores. Fig. i reduced, Fig. 2 mag. dark brown, apex much thickened, with a small, hyaline, wart- like papilla, 26-35 X 20-26 /x. If the disease appears early, spray with Bordeaux mixture ; when the pods are formed, use permanganate of potash. Broad bean rust {Uromyces fabae, De Bary) is a parasite very common on the leaves and stems of broad beans, peas, also on various wild leguminous plants, vetches, etc. The aecidium stag
RM2CDD9C7–. The rusts of Australia, their structure, nature, and classification . Explanation of Plates. PLATE XXIV. (All Figures X 250 unless otherwise slated.) UFOMYCLADIUM.Fig. 207. Teleutospores of U. his-porum, on Acacia dealbata, one cluster of two showing the common staik. 208. Teleutospores of the same. 200. Uredospores of U. alpinum, on Acacia dealbata.210, 211. Teleutospores of the same. 212. Five uredospores of U. atpinum on Acacia dallachiana, mixed with teleutospores and one mesospore (m). 213. 214. Successive stages in the development of teleutospore clusters of the same. (Stained.) ;i^. C
RMMCKCBF–. Fig. 88.—Puccinia pringshcimiana. i, portion of gooseberry leaf with three aecidia or ' cluster-cups ' ; 2, section through a ' cluster-cup'; a, spores produced in chains; b, wall or peridium ; c, epidermis of host; rf, middle cells of leaf; e, mycelium of fungus ; 3, portion of sedge leaf bearing sori of teleutospores ; 4, portion of same ; 5, teleutospores. 6, uredo- spores. Fig. i nat. size, and remainder variously mag. thickened, roundish or truncate, base often narrowed, smooth, brown, 35-50 x 15-20 /x; pedicel rigid, persistent. No remedial measures known. It is advisable to pick infec
RM2CDD9YK–. The rusts of Australia, their structure, nature, and classification . 0. II. Robinson, Phot PUCCINIA. RUTACEAE, TREMANDREAE, and VIOLACEAE 268 Explanation of Plates. PLATE XIV. {All Figures X ^50.) PUCCIXIA GRAMINIS on VARIOUS GRASSES.Fig. 113. Teleutospores and mesospores on wild oat, Avena fatua. 114. Teleutospores on barley, Hordeum vulgare. 115. 116. Teleutospores, mesospores, and uredospore, one of the first three-celled, on native barley, Echinofogon ovatus. 117. Teleutospores on cocksfoot, Dactylis glomcrata. 118. Teleutospores and uredospores on silver grass, Fesiuca bromoides. 1 hi.
![. I'iG. 87.—Puccinia asparagi. 1, aecidium stage on a young shoot of asparagus ; 2, teleutospore stage on a summer plant; 3, aecidiospores; 4, uredospores; 5, teleutospores. l*"ig- 2 reduced, remainder variously mag. bright orange spores. The pustules of summer-spores and winter-spores develop at a later stage, and arc mostly con- fined to the leaves, where they appear under the form of minute brown or blackish pustules which soon become powdery. I. Forming large orange patches on stem and leaves. Spores subglobose, minutely warted, pale yellow, 35-45 X 18-25 /i. II. Small brown pustules Stock Photo](https://c8.alamy.com/comp/MCKCBJ/iig-87puccinia-asparagi-1-aecidium-stage-on-a-young-shoot-of-asparagus-2-teleutospore-stage-on-a-summer-plant-3-aecidiospores-4-uredospores-5-teleutospores-lquotig-2-reduced-remainder-variously-mag-bright-orange-spores-the-pustules-of-summer-spores-and-winter-spores-develop-at-a-later-stage-and-arc-mostly-con-fined-to-the-leaves-where-they-appear-under-the-form-of-minute-brown-or-blackish-pustules-which-soon-become-powdery-i-forming-large-orange-patches-on-stem-and-leaves-spores-subglobose-minutely-warted-pale-yellow-35-45-x-18-25-i-ii-small-brown-pustules-MCKCBJ.jpg ". I'iG. 87.—Puccinia asparagi. 1, aecidium stage on a young shoot of asparagus ; 2, teleutospore stage on a summer plant; 3, aecidiospores; 4, uredospores; 5, teleutospores. l*"ig- 2 reduced, remainder variously mag. bright orange spores. The pustules of summer-spores and winter-spores develop at a later stage, and arc mostly con- fined to the leaves, where they appear under the form of minute brown or blackish pustules which soon become powdery. I. Forming large orange patches on stem and leaves. Spores subglobose, minutely warted, pale yellow, 35-45 X 18-25 /i. II. Small brown pustules Stock Photo")
RMMCKCBJ–. I'iG. 87.—Puccinia asparagi. 1, aecidium stage on a young shoot of asparagus ; 2, teleutospore stage on a summer plant; 3, aecidiospores; 4, uredospores; 5, teleutospores. l*"ig- 2 reduced, remainder variously mag. bright orange spores. The pustules of summer-spores and winter-spores develop at a later stage, and arc mostly con- fined to the leaves, where they appear under the form of minute brown or blackish pustules which soon become powdery. I. Forming large orange patches on stem and leaves. Spores subglobose, minutely warted, pale yellow, 35-45 X 18-25 /i. II. Small brown pustules
RM2CDDA9K–. The rusts of Australia, their structure, nature, and classification . •• mm y. G. H. Robinson, Phot 256 Explanation of Plates. PLATE VIII. (All Figures X 250.) PUCCINIA.Fig. 60. Section of teeutosorus of Puccinia cinerariae on Cineraria sp. cult, with teleuto- spores and mesospores. 61. Three uredospores and several teleutospores of P. cichorii on Cichorium intybus. 62. Uredospores and teleutospores of P. hyfochocridis on Hypochoeris radicala. 63. Teleutospores of the same. 64. Two uredospores and numerous teleutospores of P. cyani on Cenlaurea cyanus.*>;. Due mesospore and several teleut
RM2CDD90B–. The rusts of Australia, their structure, nature, and classification . ,•-? o oc (#* o .« !? esa w m v . ^ PUCCINIA AND UREDO. 302 Explanation of Plats. PLATE XXXI. {All Figures X 250 unless otherwise stated.) ADDENDA to PUCCINIA and PHRAGMIDIUM.Fig.26S. Leaf of Loranthus celastroides, showing uredosori and teleutosori of Puccinia loranthicola ... ... ... ... ... ... ... nat. size 269. Teleutospores from same. 270. Uredospores from s;.me. 271. Leaf of Loranthus celastroides, with aecidia of same ... ... nat. size 2-2. Teleutospores of Phragmidiitm longissimum. a. Four and five celled spores,
RM2CDCAN0–. Fungous diseases of plants, with chapters on physiology, culture methods and technique . Fig. 213. CoLEospoRiuM Senecionis[b after Tulasne) XXVIII. RUST OF POPLAR Melampsora tremulce Tul. Tulasne applied the above name to a rust of the poplar {Popuhistremidd) occurring throughout a considerable range in Europe.It would seemthat this namewould now in-clude at leastthree forms, orspecies, as dis-tinguished byKlebahn, viz.,Melampsora PinitorqnaRostr., Mel amp so 7aLarici-tremiLlce Kleb.,and Melampsora Mag-mcsiana Wagn. These. Fig. 214. Melampsora trea/c/^.-e : Uredospores AND TeLEUTOSPORES 438
RM2CDD9PE–. The rusts of Australia, their structure, nature, and classification . *±M. G. H. Robin-on, Phot. X 50 & 250. UROMYCES. POLYGONACEAE, CARYOPHYLLACEAE, AND ZYGOPHYLLACEAE. 278 Explanation of Plates. PLATE XIX. {All Figures X 250 unless otherwise stated.) UROMYCES.Fig. 158. Teleutospores, seen from above, of Uromyces fusisporus on Acacia ncnifclia. 159. Side view of same. 160. Uredospores of same, with pronounced apiculus and equatorial band of germ pores. UROMYCLADIUM. 161. Teleutospores of Uromycladium simplex on Acacia pyenantha, part of the pedicel being still attached with the remains of t
RM2CDDA7E–. The rusts of Australia, their structure, nature, and classification . G. H. Robinson, Phot 256 Explanation of Plates. PLATE VIII. (All Figures X 250.) PUCCINIA.Fig. 60. Section of teeutosorus of Puccinia cinerariae on Cineraria sp. cult, with teleuto- spores and mesospores. 61. Three uredospores and several teleutospores of P. cichorii on Cichorium intybus. 62. Uredospores and teleutospores of P. hyfochocridis on Hypochoeris radicala. 63. Teleutospores of the same. 64. Two uredospores and numerous teleutospores of P. cyani on Cenlaurea cyanus.*>;. Due mesospore and several teleutospores o
RM2CDD9XT–. The rusts of Australia, their structure, nature, and classification . G. II. Robinson, Ilioc. PUCCINIA. RUBIACEAE, ONAGRACEAE, ROSACEAE, and LEGUMINOSAE. 262 Explanation of Plates. Fig. PLATE XI. [All Figures X 250.) PUCCINIA. Teleutospores of Puccinia tetragoniae on Tetragonia im-plexicoma, one withnearly vertical septum in upper cell. go. Teleutospores, strongly war ted, of P. ludwigii on Pumex flexuosus. gi. Teleutospores stronglv warted, of P. ludwigii on Rutnex brownii, one spore beingTrip hragmiu m -11 ke. g2. Uredospore and teleutospores of P. acetosae on Kumex arifohus, all the latte
RM2CDD8G4–. The rusts of Australia, their structure, nature, and classification . G H. Robinson, Phot. UROMYCLADIUM. LEGUMINOSAE-ACACIA IMPLEXA. 324 Explanation of Plates. PLATE XLII. UROMYCLADIUM.Fig. 305. Witches broom on Acacia im-plexa, due to Uromycladium tefperianum ... X 5 UROMYCES. 306. Teleutospores of Uromyces affendicttlatus on Vigna catjang or Cow-pea, from Richmond, New South Wales ... .. ... ... ... X ^5° 307. Teleutospores of Uromyces fabae on Lathyrus venosus. (Sydow, Uredineen, 1353) • •?? x 2°. G. H. Kobinson, Phot UROMYCLADIUM, UROMYCES. LEGUMINOSAE. 326 Explanation of Plates. PLATE X
RM2CDD9TR–. The rusts of Australia, their structure, nature, and classification . G. II. Robinson, Ptao . x 250 00 PUCCINIA. TELEUTOSPORE GERMINATION OF P. MALVACEARUM. Explanation of Plates. PLATE XVI. [All figures X ^50.) UROMYCES.Fig. 131. Group of teleutospores of Uromyces danthoniae on Danthonia semunnularis. 132. Teleutospores of U. ehrhartac on MicroLaena (Ehrharta) stifoides. 133. Teleutospores of U. tenuicutis on Sforobolus indicus. 1 u. Two one-celled and one two-celled teleutospore of U. tricorynes on Tricoryne elatior. 1 55. Teleutospores of U. tricorynes on Tricoryne elatior. 136. Uredospor
RM2CDDA3P–. The rusts of Australia, their structure, nature, and classification . G. II. Robinson, Ilioc. PUCCINIA. RUBIACEAE, ONAGRACEAE, ROSACEAE, and LEGUMINOSAE. 262 Explanation of Plates. Fig. PLATE XI. [All Figures X 250.) PUCCINIA. Teleutospores of Puccinia tetragoniae on Tetragonia im-plexicoma, one withnearly vertical septum in upper cell. go. Teleutospores, strongly war ted, of P. ludwigii on Pumex flexuosus. gi. Teleutospores stronglv warted, of P. ludwigii on Rutnex brownii, one spore beingTrip hragmiu m -11 ke. g2. Uredospore and teleutospores of P. acetosae on Kumex arifohus, all the latte
RM2CDDANH–. The rusts of Australia, their structure, nature, and classification . Sal size and x 25u. 244 Explanation of Plates. PLATE II. [All Figures X 250.) PUCCINIA.Fig. i!. Section of teleutosorus of Puccinia lolii avenae on oat (Avena saliva) with severalunicellular as well as bicellular teleutospores. 12. Group of teleutospores of P. beckmanniae on Beckmannia erucacformis. 13. Section of teleutosorus of P. festucae on Festuca fratensis. 14. Section of teleutosorus of P. lolii on Lolium -perenne. 15. 16. Groups of teleutospores of P. maydis on Zea mays, including one four- celled spore. ly. Teleut
RM2CDCAPP–. Fungous diseases of plants, with chapters on physiology, culture methods and technique . Fig. 210. Fhragmidium subcorticiuma and d^ caeoma and teleuto stages on rose ; b^ c, and r, spore forms usually in small black groups. A teleutospore is more or lessspindle-shaped, usually six to eight cells in extent (Fig. 210, e), andeach cell is provided with several germ pores. The outer wall ofthe spore is generally uneven or warty toward the apex, andthere is a distinct terminal papilla. The teleutospores measure65-100 X 30-45 />t without the pedicel. The pedicel is persistent,swollen at the bas
RM2CDD8FY–. The rusts of Australia, their structure, nature, and classification . O. C. Brittlebank. Del. PUCCINIA AND UROMYCES. NORMAL AND ABNORMAL TELEUTOSPORES. 322 Explanation of Plates. PLATE XLI. UROMYCLADIUM TEPPERIANUM.Fig.304. Large gall on Acacia im$lcxa, weight 3 lbs. ... ... ... X £ Plate XL I.. G H. Robinson, Phot. UROMYCLADIUM. LEGUMINOSAE-ACACIA IMPLEXA. 324 Explanation of Plates. PLATE XLII. UROMYCLADIUM.Fig. 305. Witches broom on Acacia im-plexa, due to Uromycladium tefperianum ... X 5 UROMYCES. 306. Teleutospores of Uromyces affendicttlatus on Vigna catjang or Cow-pea, from Richmond, N
RM2CDD8CD–. The rusts of Australia, their structure, nature, and classification . .. 39 83 trifolii—complete cycle 84 introduced 43 perennial mycelium 5 tuberculatum 35 vesicu/osus, two-celled teleu- tospores 39 83 Uromycladium... ... 24, S3, 104 forming galls often 6 mesospores 25 26 spermogonia 14 teleutospores 24 vesicles 24 Uromycladium maritimum, occur- rence of spermogonia L3 37 notabile 14 perennial mycelium and galls ... 6 robinsoni, spermogonia 13 tspperianum, spermogonia ... i:; 37 perennial mycelium and galls ... 6 Uropyxis 83 Ustilagines 40 Vegetative organs, mycelium 3 Verrucose uredospores
RMRGNM47–. Bulletin de l'Herbier Boissier. Plants. A. — Uredospores. (Grossi 400 fois).. B. — Téleutospores. (Grossi 400 fois).. 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.. Herbier Boissier. Genève : Impr. Romet
RMRD2HGF–. Elementary botany. Botany. Fig. 150. Head of wheat showing black rust spots on the chaff and awns.. Fig. 151. Teleutospores of wheat rust, showing two cells and the pedicel.. 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.. Atkinson, George Francis, 1854-1918. New York, H. Holt and company
RMRDXGWA–. Introduction to the study of fungi; their organography, classification, and distribution, for the use of collectors. Fungi. RUST FUNGI—UREDINEAE 245 - , c latter. In the one remaining genus of the section, that of Cronartium, the teleutospores surround a vertical columella, but in external appearance the species resemble Uredines as little as possible, and are not unlike persistent tendrils of some member of the Melanconieae. The Didymosporae are well typified by the large and important genus Pioccinia, with its transversely septate teleuto- spores. The grades are like those of Uromyces, viz
RMRG9A92–. Bulletin. Mycology; Fungi; Fungi. CONTRIBUTIONS A LA FLORE MYCOLOGIQUE. 267. FiG. 8. — PucciNiA sur Bromus madritensis : sores de téleutospores avec paraphyses 1^370.. 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.. Société mycologique de France; Société botanique de France. Epinal : La Société
![. The British rust fungi (Uredinales), their biology and classification. Uredineae. 12 TELEUTOSPORES is much thicker at the apex than elsewhere (Fig. 13). While the spores are standing in a densely crowded sorus, the apex is the part most exposed to the weather, and therefore most needing protection. There is a thin endospore to each cell: the contents are granular and at first oily; there is a large and conspicuous nucleus in the centre of each. This nucleus, in its resting stage, is almost homogeneous except for its nucleolus, and was mistaken by the older observers for a " vacuole.&quo Stock Photo](https://c8.alamy.com/comp/RH1JJ6/the-british-rust-fungi-uredinales-their-biology-and-classification-uredineae-12-teleutospores-is-much-thicker-at-the-apex-than-elsewhere-fig-13-while-the-spores-are-standing-in-a-densely-crowded-sorus-the-apex-is-the-part-most-exposed-to-the-weather-and-therefore-most-needing-protection-there-is-a-thin-endospore-to-each-cell-the-contents-are-granular-and-at-first-oily-there-is-a-large-and-conspicuous-nucleus-in-the-centre-of-each-this-nucleus-in-its-resting-stage-is-almost-homogeneous-except-for-its-nucleolus-and-was-mistaken-by-the-older-observers-for-a-quot-vacuolequo-RH1JJ6.jpg ". The British rust fungi (Uredinales), their biology and classification. Uredineae. 12 TELEUTOSPORES is much thicker at the apex than elsewhere (Fig. 13). While the spores are standing in a densely crowded sorus, the apex is the part most exposed to the weather, and therefore most needing protection. There is a thin endospore to each cell: the contents are granular and at first oily; there is a large and conspicuous nucleus in the centre of each. This nucleus, in its resting stage, is almost homogeneous except for its nucleolus, and was mistaken by the older observers for a " vacuole.&quo Stock Photo")
RMRH1JJ6–. The British rust fungi (Uredinales), their biology and classification. Uredineae. 12 TELEUTOSPORES is much thicker at the apex than elsewhere (Fig. 13). While the spores are standing in a densely crowded sorus, the apex is the part most exposed to the weather, and therefore most needing protection. There is a thin endospore to each cell: the contents are granular and at first oily; there is a large and conspicuous nucleus in the centre of each. This nucleus, in its resting stage, is almost homogeneous except for its nucleolus, and was mistaken by the older observers for a " vacuole.&quo
RMRH2R5A–. The British rust fungi (Uredinales), their biology and classification. Uredineae. UREDINOPSIS 379 UREDINOPSIS Magnus. Teleutospores solitary, extracellular, hyaline, septate. Uredo- sori subepidermal, with a distinct peridium; uredospores hyaline, pedicellate, without germ-pores. On Ferns. This genus is distinguished from all others by the fact that the teleutospores are dispersed without order among the cells of the mesophyll. There are three known forms of spores, which seem to occur simultaneously, and not in a lixed order of succession as in most pleomorphic Uredinales. It is one of the
RMRDYFXT–. A textbook of botany for colleges and universities ... Botany. 84 MORPHOLOGY teleutospores, the saprophytic promycelium or basidium bearing ba- sidiospores, and the parasitic mycelium bearing aecidiospores), lives upon two unrelated hosts, and produces four (perhaps five) kinds of spores. It is natural that such a polymorphous plant should not have been understood at first, and that the different phases should have received different names. The mycelium bearing uredospores was named Uredo ; that bearing teleutospores, not known at first to be the. Fig. ig6. — Wheal rust: an aecidium (cluster
RMRE1J19–. A monograph of the British Uredineae and Ustilagineae, with an account of their biology including the methods of observing the germination of their spores and of their experimental culture. Smut fungi; Rust fungi; Smut diseases; Fungi. Formation of Teleutospores of Ustilaginece. 63 entering the ovary through the flower-stalk, sends its hyphse through the funiculus into the ovule, which becomes permeated by densely interwoven hyphae. The micro- pylar end of the integuments alone escapes and remains, as a cap on the top of the diseased ovule, for some time,. 1 J^S- ^-âSpliaceMheca. hydnpifens
RMRE0PAC–. Agricultural botany, theoretical and practical. Botany, Economic; Botany. Fig. 247.—^, Transverse section through a sorus of teleutospores of Puccima graminis Pers., on a wheat stem (enlarged 80 diameters); B, a. 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.. Percival, John, 1863-1949. New York, H. Holt
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