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Uredospore Stock Photos and Images
RM2AN2XTT–Fungi, Ascomycetes, Ustilaginales, Uredinales . its wall is variously roughened in most speciesby minute projections on the surface. Two or more germ-pores are usuallypresent and the uredospore, like the cells which give rise to it, is invariablybinucleate ; it produces a binucleate mycelium on which teleutospores orfurther crops of uredospores are formed. Certain species(Puccinia vexans,etc),occurring under very dry conditions, lit I LRKDINALKS 205 produce a second type of uredospore with thick walls which arc adapted tosurvive unfavourable conditions; these are known as amphispores. Both a
RMPG451M–. A text-book of mycology and plant pathology . Plant diseases; Fungi in agriculture; Plant diseases; Fungi. 194 MYCOLOGY. Fig. 68.—Portion of a. teliosorus of cedar apple in February showing mycelia stroma and the binucleate condition of the cells of young teliospores. (After Reed. H S , and Crabill, C. H., Techn. Bull. 9, Va. Agric. Exper. Slat., May, 191S-) basidiospores teleutospore uredospore.. 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 resem
RMMA734G–. Elementary botany . Fig. 160. Germinating uredospore of Germ tube entering the wheat rust. (After Marshall- leaf through a stoma. Ward.)
![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 Stock Photo](https://c8.alamy.com/comp/T1HP89/diseases-of-cultivated-plants-and-diseases-of-cultivated-plants-and-trees-diseasesofcultiv00massuoft-year-1910-fig-89pucchiiagraminis-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-T1HP89.jpg "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 Stock Photo")
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
RM2AFJ8T2–. Transactions and proceedings of the Botanical Society of Edinburgh. ialictrum alpinum, Linn., and uredospore and teleuto-spore stages on Polygomtm viviparwm, Linn. Puccinia borealis, Juel, the aecidial stage on TJialictrumalpimim, Linn. The uredospore and teleutospore stages TEANS. EOT. SOC. EDIN. VOL. XXVII. € XX BOTANICAL SOCIETY OF EDINBURGH of this species probably occur on Anthoxanthum odoratum,Linn,, but have not been found in Britain. Melainpsora alpina, Juel, the aecidial stage on Saxifragaoppositifolia, Linn., and urcdospore and teleutospore stageson Salix herbacea, Linn. He also ex
RMPG4APK–. Botany for agricultural students . Botany. Fig. 356. — Stage of the Wheat Rust on the Barberry bush, BcrherU vulgaris. Left, leaf of Barberry, showing the affected areas which are red- dish, much thickened, and contain many cup-like depressions; right, a very much enlarged section through the affected area of the leaf, showing one of the cups (c) with chains of aecidiospores (X 200). The very small spores at (p) are the spermatia or pycniospores.. Fig. 357. — Diagram showing the life cycle of the Wheat Rust. A, wheat plants; B, barberry bush; u, uredospore; t, teleutospore; s, basidio- spore
RMME6KT0–. Die Natürlichen Pflanzenfamilien nebst ihren Gattungen und wichtigeren Arten, insbesondere den Nutzpflanzen, unter Mitwirkung zahlreicher hervorragender Fachgelehrten begründet . Fig. 17. Puccinia graminis Pers. A Eine keimende Teleutospore. B Ein abgerissenes Promycelium. C Eine keimende Sporidie, deren Keimschlauch in eine Epidermiszelle eingedrungen ist. D Uredospore mit 3 Keimschläuchen. C, D 390(1; A, B etwas stärker vergr. (Nach Sachs.)
RMT1JEYG–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. 189.—Puccinia sorghi. Three teleutospores and two uredospores. One of the latter exhibits the tiny point-like projections of the membrane, (v. Tubeuf del.) Fig. 188.—Puccinia. sorphi. Section of leaf of Zea Mais filled with mycelium. The epidermis is ruptured by a spore-sorus. At one end there are still the remains of a uredospore-sorns and a few uredosp
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
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
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
RMT1HW1D–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 Fio. 209.—Ckiysomyxa rhododendri. Twig of Rhododendron hirxatu.ni with sori of uredo- Fir.. 210.—Chrysomyxo, rhododendri on Rho- spores oil the lower epidermis, causing dis- dodtndron firrugincum. Uredospore-sori in coloured spots on tlie Tipiier. (v. Tubouf September as elongated white stripes on the del.) stem below the leaves, (v. Tubeuf del.) The uredospores are yellow and ovoid, with granular pr
RM2AN2Y4R–Fungi, Ascomycetes, Ustilaginales, Uredinales . Fig- >79- • Phragmidium Rubi Pers.; uredosorus, x6oo; after Sappin-Trouffy; b. Phragmidiumviolaceum Wint.; uredosorus, X480; after Blackman. by paraphyses, or in certain genera (Pucciniastrum, UrcJinopsis) by a pseudo-peridium. In the young sorus a regular layer of somewhat rectangular basalcells is formed, from which the uredospore mother-cells arise. In Colco-sporitim, in Chrysomyxa, and in the secondary caeomata of Phragmidiumsubcorlicium, they are produced in vertical rows like the typical aecidiosporemother-cells and divide to form uredos
RMPG4B14–. Diseases of plants induced by cryptogamic parasites : introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae . Plant diseases; Parasitic plants; Fungi. Fig. 209.—Chrysomyxa rhodcdendrl. Twig of Rhododendron hirsvXum with sori of nredo- Fig. 210.—Chrysotnyxa rhododendri on Rho- spores on the lower epidermis, causing dis- ttodendron fein-ugincv.m. Uredospore-sori in coloured spots on the upper, (v. Tubeuf September as elongated white stripes on the del.) stem below the leaves, (v. Tubeuf deL) The uredospores are yellow and ovoid, with granular protuber- ances on thei
RMMCK59T–. Fig. 210.—Chrysomyxo, rhododendri on Rho- dodfiidron ferrugineum. Uredospore-sori in September as elongated white stripes on the stem below the leaves, (v. Tubeuf del.) The uredospores are yellow and ovoid, with granular protuber- ances on their coats; they are developed in series from the sori.^ The disease may be further propagated during the same year Ijy the uredospores. In districts where spruce does not occur, it is probable that these spores hibernate, and in the following spring produce germ-tubes which infect other alpine-rose leaves. It frequently happens that whole forests of spru
RMT1HW1F–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. 209.—Clu-ymmyoM rhndndendri. Twig of Rhododendron hirsv.tinn with sort of uredo- spores on the lower epidermis, causing dis- coloured spots on the upper, (v. Tubeuf del.) Fig. 210.—Chrysomyxo, rhododendri on Rho- dodfiidron ferrugineum. Uredospore-sori in September as elongated white stripes on the stem below the leaves, (v. Tubeuf del.) The uredospores
RM2AFJ4BN–. Transactions and proceedings of the Botanical Society of Edinburgh. mination takes place within twenty-four hours whenthe spores are placed in water. The uredospore usuallyproduces two germ-tubes, which generally soon give rise totwo or three branches (fig. 4). The teleutospore, on germina-tion, produces one germ-tube from each cell, and these may beeither on the same or on opposite sides of the spore (figs. 9and 10). Sporidia were not produced in the hanging drops. On account of the structure of the wall of the teleutosporeand the presence of two germ-pores in each cell, this rust wasremove
![. Comparative morphology and biology of the fungi, mycetozoa and bacteria . Plant morphology; Fungi; Myxomycetes; Bacteriology. FlC. iz8. Pucctnia ^ramittis. A a. pair of tdeutospores t germinating with pro- mycelium and sporidia sj>. B a promycelium with sporidia sp torn from the spore. C epidermis of the under surface of the ]ea£ of Berdert's vu^£-aris vnth a germinating sporidium sp, the germ-tube from which has penetrated at i into an epidermal cell. Jy uredospore putting out a germ-tube fourteen hours after being placed on water. Four equatorial germ-pores are seen on the empty spore-m Stock Photo](https://c8.alamy.com/comp/PG2XB2/comparative-morphology-and-biology-of-the-fungi-mycetozoa-and-bacteria-plant-morphology-fungi-myxomycetes-bacteriology-flc-iz8-pucctnia-ramittis-a-a-pair-of-tdeutospores-t-germinating-with-pro-mycelium-and-sporidia-sjgt-b-a-promycelium-with-sporidia-sp-torn-from-the-spore-c-epidermis-of-the-under-surface-of-the-ea-of-berderts-vu-aris-vnth-a-germinating-sporidium-sp-the-germ-tube-from-which-has-penetrated-at-i-into-an-epidermal-cell-jy-uredospore-putting-out-a-germ-tube-fourteen-hours-after-being-placed-on-water-four-equatorial-germ-pores-are-seen-on-the-empty-spore-m-PG2XB2.jpg ". Comparative morphology and biology of the fungi, mycetozoa and bacteria . Plant morphology; Fungi; Myxomycetes; Bacteriology. FlC. iz8. Pucctnia ^ramittis. A a. pair of tdeutospores t germinating with pro- mycelium and sporidia sj>. B a promycelium with sporidia sp torn from the spore. C epidermis of the under surface of the ]ea£ of Berdert's vu^£-aris vnth a germinating sporidium sp, the germ-tube from which has penetrated at i into an epidermal cell. Jy uredospore putting out a germ-tube fourteen hours after being placed on water. Four equatorial germ-pores are seen on the empty spore-m Stock Photo")
RMPG2XB2–. Comparative morphology and biology of the fungi, mycetozoa and bacteria . Plant morphology; Fungi; Myxomycetes; Bacteriology. FlC. iz8. Pucctnia ^ramittis. A a. pair of tdeutospores t germinating with pro- mycelium and sporidia sj>. B a promycelium with sporidia sp torn from the spore. C epidermis of the under surface of the ]ea£ of Berdert's vu^£-aris vnth a germinating sporidium sp, the germ-tube from which has penetrated at i into an epidermal cell. Jy uredospore putting out a germ-tube fourteen hours after being placed on water. Four equatorial germ-pores are seen on the empty spore-m
RMMCKCC6–. Fig. S6. —Uromyces betae. i, portion of a mangold leaf dis- eased ; 2, portion of leaf with a cluster of aecidia; 3, section of portion of leaf with two uredospore pustules ; 4, aecidiospores ; 5, uredospores ; 6, teleutospores. Fig. i reduced, remainder mag. Uromyces betae as are our European plants. This I consider as one of the proofs that the fungus is by some means carried along with the plants to new countries. Now as beet or mangold is only introduced to new countries by means of seed, it follows that fungus spores must necessarily have been conveyed along with the seed. The disease h
![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
RM2AJDATT–Elementary botany . 20. Fig. 221. Germinating uredospore of Germ tube entering the wheat rust. (After Marshall- leaf through a stoma.Ward.). Fig. 222.Teleutospore germi-nating, forming pro my-celium. Figs. 222-224.— Fig. 223.Pro mycelium of ger-minating teleutospore,forming sporidia.Puccinia graminis (wheat rust) Germinating sporidia entering leafof barberry by mycelium. (After Marshall-Ward.) FUNGI: RUSTS. 193 the leaves of the barberry, they germinate and produce the cluster cup again.The plant has thus a very complex life history. Because of the presence ofseveral different forms in the lif
RMPG451H–. A text-book of mycology and plant pathology . Plant diseases; Fungi in agriculture; Plant diseases; Fungi. Fig. 68.—Portion of a. teliosorus of cedar apple in February showing mycelia stroma and the binucleate condition of the cells of young teliospores. (After Reed. H S , and Crabill, C. H., Techn. Bull. 9, Va. Agric. Exper. Slat., May, 191S-) basidiospores teleutospore uredospore.. uredospore secidiospore intercalary cell spermatium s gamete ¥ gametes fusion-cell Fig. 69.—Diagram of the alternation of generations of a typical rust. (After Grove, W. B., The British Rust Fungi, 1913, 27.). P
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.
RMT3X81B–Archive image from page 75 of Die Natürlichen Pflanzenfamilien nebst ihren. Die Natürlichen Pflanzenfamilien nebst ihren Gattungen und wichtigeren Arten, insbesondere den Nutzpflanzen, unter Mitwirkung zahlreicher hervorragender Fachgelehrten begründet dienatrlichenp11engl Year: 1900 Fig. 40. Die Piicciitia-Arien unserer (Jetreidoarton. A — Ü Puccinia liubigo-vira (DC.) Wint. l |u. B Teleuto- iipuroDlager auf Triticum tulgare, C Toleutosporen. J) UrcdoBpore. ü—H Puccinia corouifcra Kleb. E u. /' Telouto- 8pureiilat,'<T auf Aiena saiiva, 0 Teleutosporen, H Uredospore. J u. A'Teleiitosporen
RM2ANBW9M–A text-book of mycology and plant pathology . Pig. 68.—Portion of a teliosorus of cedar apple in February showing myceliastroma and the binucleate condition of the cells of young teliospores. (After Reed,H. S., and Crabill, C. H., Techn. Bull, g, Va. Agric. Exper. Stal.. May. 1915) teleutospore basidiospores uredospore. uredospore secidiospore^ intercalary cell^ „ . „•^ msion-cell spermatium} gamete ? gametes Fig. 69.—Diagram of the alternation of generations of a typical rust. (After Grove,W. B., The British Rust Fungi, 1913, 27.) RUST FUNGI 19s been known to germinate, and the large size of
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
RM2AX48XX–Quarterly journal of microscopical science . ^•^<wmfl^JX/r,N.S.^.///.. JOURNAL OF MICROSCOPICAL SCIENCE. EXPLANATION OF PLATES I, II, & III, Illustrating Mr. Marshall Ward^s Paper on Hemileia vastatrix. Figs. 1—3.—A uredospore detached in water, and viewed in variouspositions by rolling: the contents are omitted for simplicity. Zeiss J.,CO. 4. Fig. 1, a, c, and Fig. 2 a, are seen from the side; Fig. 1 b, fromabove; Fig. 2 b, from below; Fig. 3, from the end by which spore wouldbe attached. Fig. 4-.—Similar spore seen in (oblique) transverse optical section,Zeiss J., oc. 4. Fig. 5.—A simil
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
RM2CEYB2K–. The microscope and its revelations. FIG. 476.—Mcidimn tussilaginis: A, portion of the plant, magnified ; B, sectionof one of the tecidia with its spores. giving rise to a third uredo-form. This consists of filiform basids,each of which bears a round oval spore, the uredospore, which ger-minates very rapidly, constantly reproducing the same form. Thesame mycele which produces the uredo-form also gives rise subse-quently to the teleutospore-form. The fungus usually hibernatesand remains in a state of rest in the teleutospore-form. Of the Peronosporeae (fig. 477) some species grow on the deadbo
![. 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
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
RMMCK636–. Fio. 209.—Ckiysomyxa rhododendri. Twig of Rhododendron hirxatu.ni with sori of uredo- Fir.. 210.—Chrysomyxo, rhododendri on Rho- spores oil the lower epidermis, causing dis- dodtndron firrugincum. Uredospore-sori in coloured spots on tlie Tipiier. (v. Tubouf September as elongated white stripes on the del.) stem below the leaves, (v. Tubeuf del.) The uredospores are yellow and ovoid, with granular protuber- ances on their coats; they are developed in series from the sori.^ The disease may be further propagated during the same year Ijy the uredospores. In districts where spruce does not occur
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
RMME6KKE–. Die Natürlichen Pflanzenfamilien nebst ihren Gattungen und wichtigeren Arten, insbesondere den Nutzpflanzen, unter Mitwirkung zahlreicher hervorragender Fachgelehrten begründet . Fig. 30. A—E Uredinopsis Striähiopteridis Stornier. A Ein Fiedertlättchen von Strutluopteris mit den punkt- förmigen Sporenlagern. Nat. Gr. Ji Schnitt durch ein Lager einzelliger Dauersporen. Im Blattpareuchym sind die mehrzelligen Teleutosporen einzeln eingelagert (310J1). C und D Uredosporen (in Wasser und trocken). i'Eine einzelne einzellige Dauerspore. — F—G Uiedinops. fiUcina (Niessl.); F Uredospore: G eine ein
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
RMMCK6FN–. Fig. •209.-^Chi-y«omyxa rhododendri. Twig of Rhododendron hh-xutinn with sori of uredo- Flo. 210.—CJiryxomym rhododendr! on KUo- spores ou the lower epidermis, causing dis- doth ndron u i-i-iKj'ni'vm. Uredospore-.sori in coloured spots on the upper, (v. Tubeuf September as elongated white stripes on the del.) stem below the leaves, (v. Tubeuf del.) The uredospores are yellow and ovoid, with granular protuber- ances on their coats; they are developed in series from the sori.^ The disease may be further propagated during the same year by the uredospores. In districts where spruce does not occu
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
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.
RMME6KG2–. Die Natürlichen Pflanzenfamilien nebst ihren Gattungen und wichtigeren Arten, insbesondere den Nutzpflanzen, unter Mitwirkung zahlreicher hervorragender Fachgelehrten begründet . Fig. 40. Die Piicciitia-Arien unserer (Jetreidoarton. A — Ü Puccinia liubigo-vira (DC.) Wint. ^l |u. B Teleuto- iipuroDlager auf Triticum tulgare, C Toleutosporen. J) UrcdoBpore. ü—H Puccinia corouifcra Kleb. E u. /' Telouto- 8pureiilat,'<T auf Aiena saiiva, 0 Teleutosporen, H Uredospore. J u. A'Teleiitosporen uud Dredospore voii Piicc. ;/rannni8 l'eia. L—0 Puccinia Sorylii Sciw. /, u. J/Teleutosporonlager auf Z
RM2CDD9HG–. The rusts of Australia, their structure, nature, and classification . tages of development: T, filament with two septa, the upper two segments destined to become teleuto-spores, the lowermost a vesicle; Tl, similar filament, somewhat more ad-vanced, the vesicle beginning to push out from the lowermost segment; T-,similar filament still more advanced, the uppermost cell distending, in thenext growth is taking place at the side, and in the lowest the vesicle hasattained considerable development; T3, nearly mature head, with two darkteleutospores; U, basidium of a detached uredospore. (Stained.
RMMCR91N–. Abb. 16. Puccinia trith lager. - na. — 1. Keimende Uredospore. — 2. Schnitt durch ein Teleutospoiea- 3. Keimende Teleutospore mit Sporidien (Nach Eriksson). braun, staubig; Sporen kuglig bis ellipsoidisch, 20—28 ,a laug, 17—24 n breit, mit brauner, stachliger Membran und 8—10 Keimporen. Teleutospo renlag er meistens blattunterseits, auch auf Blattscheiden und Stengeln, länglich, bedeckt, schwarzbraun; Sporen gruppenweise von braunen Pa- rafysen umgeben, länglich bis keulenförmig, am Scheitel abgestutzt, abgerundet oder verjüngt, zum Stiel keilförmig verschmälert, bei der Querwand schwach ein
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
RMME6KJ9–. Die Natürlichen Pflanzenfamilien nebst ihren Gattungen und wichtigeren Arten, insbesondere den Nutzpflanzen, unter Mitwirkung zahlreicher hervorragender Fachgelehrten begründet . Fig. :J3. A—C Hemüeia vantalrix Beik. et Br. A eiu Uredolager 3UU/1. B Keimung einer Uredospore, Die Zollinhalte Bind durch Alkohol und Gl>'cerin contrahiert. C eine Teleutospore. D—L Teleutosporeuformen von Vromi/cea- Arten. D Viom. dictuosperma Ell. et Ev. E Urom. Trifolii (Hedw). F Urom. appendiculatus (Pers.). G Ürovi. Uedusari paniculati (Schw.). H Urom. Fabae (Pars.). / Urom. Anthyllidis (Grev.). K Urom. st
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
RMMCR92G–. Abb. 13. Schrocleriaster alpinus. 1. Eine Uredospore. 2. Schnitt durch ein Teleutobporenlager. 3. Zwei Etagen von Teleutosporen. Ob dieses Aecidium hierher oder nur zu Puccinia Phragmitis gehört, ist allerdings noch fraglich. Die Teleutosporen sind dicht zusammengeklebt und weil sich immer neue und neue Sporen aus der Basalschicht entwickeln, so entstehen auf diese Weise 4 —5schichtige Lager. Puccinia Persoon. Spermogonien wie bei Uromyces. A e c i d i e n ebenso; nur bei einigen Arten fehlt das Pseudoperidium und anstatt dessen sind die Aecidien an der Aussenseite von einem Hy p h e n m ant
RMRH2XMH–. The British rust fungi (Uredinales), their biology and classification. Uredineae. Fig. 50. U. Fabae. 'I'eleutospores and uredospore on Vicia Cnicca.. Fig. 51. U. Fabae. Telento- spores and uiedospore on Vicia sepiani.. 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.. Grove, William Bywater. Cambridge, Univ. Press
RMRE385D–. The British rust fungi (Uredinales) their biology and classification. Rust fungi. Fig. 50. v. Fabae. Teleutospores and uredospore on Vicia Crncca.. Fig. 51. V. Fabae. Telento- spores and uredospore on Vicia septum.. 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.. Grove, W. B. (William Bywater), 1848-1938. Cambridge, University Press
RMRGW515–. Bulletin. 1901-13. Agriculture; Agriculture. Bui. 263, Bureau of Plant Industry, U. S. Dept. of Agriculture. Plate II. 1 . Fig. 1.—Teleutospores of Asparagus Rust. Near the Center of the Cut on THE Right is a Uredospore. XI80.. 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.. United States. Bureau of Plant Industry, Soils, and Agricultural Engineering. Washington Govt. Print. Off
RMRH2XPC–. The British rust fungi (Uredinales) their biology and classification. Rust fungi -- Great Britain. Pig. 50. U. Fabae. 'IVleutospores and uredospore on Vicia Cracca.. Fig. 51. U. Fabae. Telento- spores and uredospore on Vicia sepivm.. 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.. Grove, W. B. (William Bywater), 1848-1938. Cambridge, University Press
RMRE38C2–. The British rust fungi (Uredinales) their biology and classification. Rust fungi. SPOROPHYTE (2n generation) uredospore secidiosppre intercalary cell GAMETOPHYTE (w generation). '^spermatium i gamete ¥ gametes fusion-cell The n generation is that in which the nucleus has the haploid number of chromosomes or, if there are no distinct chromosomes visible, the single amount of chromatin; in the 2?? generation each cell has the double (diploid) number of chromosomes or the double amount of chromatin, at first sur- rounded by two nuclear membranes, afterwards by one.. Please note that these image
![. The British rust fungi (Uredinales) their biology and classification. Rust fungi -- Great Britain. SPOKOPHYTE (2n generation) uredospore^ ascidiospore" intercalary cell' GAMETOPHYTE (n generation). spermatium $ gamete ? gametes fusion-cell The n generation is that in which the nucleus has the haploid number of chromosomes or, if there are no distinct chromosomes visible, the single amount of chromatin; in the 2/; generation each cell has the double (diploid) number of chromosomes or the double amount of chromatin, at first sur- rounded by two nuclear membranes, afterwards by one.. Pleas Stock Photo](https://c8.alamy.com/comp/RH1JHE/the-british-rust-fungi-uredinales-their-biology-and-classification-rust-fungi-great-britain-spokophyte-2n-generation-uredospore-ascidiosporequot-intercalary-cell-gametophyte-n-generation-spermatium-gamete-gametes-fusion-cell-the-n-generation-is-that-in-which-the-nucleus-has-the-haploid-number-of-chromosomes-or-if-there-are-no-distinct-chromosomes-visible-the-single-amount-of-chromatin-in-the-2-generation-each-cell-has-the-double-diploid-number-of-chromosomes-or-the-double-amount-of-chromatin-at-first-sur-rounded-by-two-nuclear-membranes-afterwards-by-one-pleas-RH1JHE.jpg ". The British rust fungi (Uredinales) their biology and classification. Rust fungi -- Great Britain. SPOKOPHYTE (2n generation) uredospore^ ascidiospore" intercalary cell' GAMETOPHYTE (n generation). spermatium $ gamete ? gametes fusion-cell The n generation is that in which the nucleus has the haploid number of chromosomes or, if there are no distinct chromosomes visible, the single amount of chromatin; in the 2/; generation each cell has the double (diploid) number of chromosomes or the double amount of chromatin, at first sur- rounded by two nuclear membranes, afterwards by one.. Pleas Stock Photo")
RMRH1JHE–. The British rust fungi (Uredinales) their biology and classification. Rust fungi -- Great Britain. SPOKOPHYTE (2n generation) uredospore^ ascidiospore" intercalary cell' GAMETOPHYTE (n generation). spermatium $ gamete ? gametes fusion-cell The n generation is that in which the nucleus has the haploid number of chromosomes or, if there are no distinct chromosomes visible, the single amount of chromatin; in the 2/; generation each cell has the double (diploid) number of chromosomes or the double amount of chromatin, at first sur- rounded by two nuclear membranes, afterwards by one.. Pleas
RMRH1JAN–. The British rust fungi (Uredinales), their biology and classification. Uredineae. 40 GROUPS OF SPORE-FORMS The relations of the various groups to one another are represented in the following diagram. The circle represents the Eu-forras; the substitution of any one chord in the place of the arc which it subtends shows how the life-history is shortened in the other cases. Only the abnormal Endophyllum cannot be included in such a scheme ; its spore-grouping could only be represented by the symbol 0 yjjh- teleutospore uredospore -^ O uredospore basidium basidiospore. mycelium secidiospore fusio
RMRH1JJE–. The British rust fungi (Uredinales), their biology and classification. Uredineae. TELEUTOSPORES 11 both (Fig. 12). The uredospore retains its capacity for germination for a longer time, even for more than three months; in fact, in certain foreign species, some of these spores acquire a thicker wall which enables them to act as a kind of resting-spore—these are called amphi- spores, but they are not formed by P. Garicis. It is found, generally, that if the spores of the Uredinales are dried gradually, they retain their power of germination for a longer time and in a better degree than if drie
RMRH1JC0–. The British rust fungi (Uredinales), their biology and classification. Uredineae. SPOROPHYTE {2n generation) uredospore^ fecidiospore intercalar}' cell GAMETOPHYTE (n generation). spermatium <? gamete ? gametes fasion-cell The 7i generation is that in which the nucleus has the haploid number of chromosomes or, if there are no distinct chromosomes visible, the single amount of chromatin; in the 2?? generation each cell has the double (diploid) number of chromosomes or the double amount of chromatin, at first sur- rounded by two nuclear membranes, afterwards by one.. Please note that these
![. Fungi, ascomycetes, ustilaginales, uredinales. Fungi. VIIl] UREDINALES 205 produce a second type of uredospore with thick walls which are adapted to survive unfavourable conditions; these are known as amphispores. Both aecidio- and uredospores germinate readily and without a rest if fully ripe, but many are shaken off by wind and rain before they reach maturity and remain incapable of germination. Moreover it is stated that spores will not ripen properly on leaves that have been removed from the plant. Sooner or later the mycelium of binucleate cells gives rise to teleuto- spores; these are Stock Photo](https://c8.alamy.com/comp/RDX0JR/fungi-ascomycetes-ustilaginales-uredinales-fungi-viil-uredinales-205-produce-a-second-type-of-uredospore-with-thick-walls-which-are-adapted-to-survive-unfavourable-conditions-these-are-known-as-amphispores-both-aecidio-and-uredospores-germinate-readily-and-without-a-rest-if-fully-ripe-but-many-are-shaken-off-by-wind-and-rain-before-they-reach-maturity-and-remain-incapable-of-germination-moreover-it-is-stated-that-spores-will-not-ripen-properly-on-leaves-that-have-been-removed-from-the-plant-sooner-or-later-the-mycelium-of-binucleate-cells-gives-rise-to-teleuto-spores-these-are-RDX0JR.jpg ". Fungi, ascomycetes, ustilaginales, uredinales. Fungi. VIIl] UREDINALES 205 produce a second type of uredospore with thick walls which are adapted to survive unfavourable conditions; these are known as amphispores. Both aecidio- and uredospores germinate readily and without a rest if fully ripe, but many are shaken off by wind and rain before they reach maturity and remain incapable of germination. Moreover it is stated that spores will not ripen properly on leaves that have been removed from the plant. Sooner or later the mycelium of binucleate cells gives rise to teleuto- spores; these are Stock Photo")
RMRDX0JR–. Fungi, ascomycetes, ustilaginales, uredinales. Fungi. VIIl] UREDINALES 205 produce a second type of uredospore with thick walls which are adapted to survive unfavourable conditions; these are known as amphispores. Both aecidio- and uredospores germinate readily and without a rest if fully ripe, but many are shaken off by wind and rain before they reach maturity and remain incapable of germination. Moreover it is stated that spores will not ripen properly on leaves that have been removed from the plant. Sooner or later the mycelium of binucleate cells gives rise to teleuto- spores; these are
RMRDYFWW–. A textbook of botany for colleges and universities ... Botany. TIIALLOPHYTES 89 so into the basidiospores, liave all been observed in mushrooms. In the common field mushroom {Agriacus campesiris) the basidium often produces only two sterigmata and spores, but in such cases four nuclei have been ob- served in the mature basidium. The vegetative mycelium has been observed to be binucleate, the con- dition found in the uredospore- teleutospore mycelium of rusts. With a uninucleate basidiospore and a binucleate mycelium, it is a matter of interest to determine where the binucleate condition orig
RMRH2XN2–. The British rust fungi (Uredinales), their biology and classification. Uredineae. 98 UROMYCES part of the world; reported on many Leguminosse, but doubtless some of these are distinct species. Jordi has distinguished under U. Fabae three. Fig. 50. U. Fabae. 'I'eleutospores and uredospore on Vicia Cnicca.. 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.. Grove, William Bywater. Cambridge, Univ. Press
RMRE38DB–. The British rust fungi (Uredinales) their biology and classification. Rust fungi. TELEUTOSPORES 11 both (Fig. 12). The uredospore retains its capacity for germination for a longer time, even for more than three months; in fact, in certain foreign species, some of these spores acquire a thicker wall which enables them to act as a kind of resting-spore—these are called amphi- spores, but they are not formed by P Garicis. It is found, generally, that if the spores of the Uredinales are dried gradually, they retain their power of germination for a longer time and in a better degree than if dried
RMRE2FYJ–. The British rust fungi (Uredinales) their biology and classification. Rust fungi. HYALOPSORA 375 (mostly four) cells; epispore thin, smooth, colourless; germ- pore not perceptible. On Polypodium Dryopteris. Uredospores, JuneâAugust; teleutospores. May and June, on young leaves (Magnus). Rare. (Fig. 279.) Fischer, who records it also on P. Robertianum, states that the teleuto- spores germinate in June. , Arthur prefers to call the first kind of uredospore the aecidiospore; this is possibly correct but, until something is known about their development, it is premature to decide. According to h
![. Plants; a text-book of botany. Botany. THALLOPIIYTES: FDNGI 66 wall, aud forms what is called the " black rust," which ap- pears late in the summer on wheat stubble. These spores are the resting spores, which last through the winter and germinate in the following spring. They are called teleuto- spores, meaning the " last spores " of the growing season. They are also called " winter spores," to distinguish them from the uredospores or " summer spores." At first this teleutospore-bearing mycelium was not recognized to be identical with the uredospore-be Stock Photo](https://c8.alamy.com/comp/RDWAYJ/plants-a-text-book-of-botany-botany-thallopiiytes-fdngi-66-wall-aud-forms-what-is-called-the-quot-black-rustquot-which-ap-pears-late-in-the-summer-on-wheat-stubble-these-spores-are-the-resting-spores-which-last-through-the-winter-and-germinate-in-the-following-spring-they-are-called-teleuto-spores-meaning-the-quot-last-spores-quot-of-the-growing-season-they-are-also-called-quot-winter-sporesquot-to-distinguish-them-from-the-uredospores-or-quot-summer-sporesquot-at-first-this-teleutospore-bearing-mycelium-was-not-recognized-to-be-identical-with-the-uredospore-be-RDWAYJ.jpg ". Plants; a text-book of botany. Botany. THALLOPIIYTES: FDNGI 66 wall, aud forms what is called the " black rust," which ap- pears late in the summer on wheat stubble. These spores are the resting spores, which last through the winter and germinate in the following spring. They are called teleuto- spores, meaning the " last spores " of the growing season. They are also called " winter spores," to distinguish them from the uredospores or " summer spores." At first this teleutospore-bearing mycelium was not recognized to be identical with the uredospore-be Stock Photo")
RMRDWAYJ–. Plants; a text-book of botany. Botany. THALLOPIIYTES: FDNGI 66 wall, aud forms what is called the " black rust," which ap- pears late in the summer on wheat stubble. These spores are the resting spores, which last through the winter and germinate in the following spring. They are called teleuto- spores, meaning the " last spores " of the growing season. They are also called " winter spores," to distinguish them from the uredospores or " summer spores." At first this teleutospore-bearing mycelium was not recognized to be identical with the uredospore-be
RMRH2XPY–. The British rust fungi (Uredinales) their biology and classification. Rust fungi -- Great Britain. 98 DROMYCES pari oi the world ; reported on raanj Leguminosae, but doubtless some of these are distinct Bpecies. Jordi has distinguished under U. Fabae three. Pig. 50. U. Fabae. 'IVleutospores and uredospore on Vicia Cracca.. 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.. Grove, W. B. (William Bywater), 1848-1938. Cambridge
RMRH1G7J–. The British rust fungi (Uredinales), their biology and classification. Uredineae. HYALOPSOKA 375 (mostly four) cells ; epispore thin, smooth, colourless; germ- pore not perceptible. On Polypodium Di^yopteris. Uredospores, June—August; teleutospores, May and June, on young leaves (Magnus). Rare. (Fig. 279.) Fischer, who records it also on P. Rohertianu^n, states that the teleuto- spores germinate in Jvnie. Arthur prefers to call the first kind of uredospore the aecidiospore; this is possibly correct but, until something is known about their development, it is premature to decide. According to
RMRE0PAK–. Agricultural botany, theoretical and practical. Botany, Economic; Botany. 728 FUNGI great numbers of chlamydospores which are shed off from the mycelium of the parasite living within the tissues of the wheat leaf. The chlamydospores are the summer spores of the fungus and are termed uredospores. They are single cells of oval form {A, Fig. 246). The outer coat of each spore is thick, and when mature is covered with very short fine spines; in it are four thin places or germ-pores, situated at even intervals around its Fig. 246.—a, Uredospore of p«c- smallest circumference. The inner czaia^rami
RMRH1T8F–. Bulletin. Mycology; Fungi; Fungi. PUCCINIA CHRYSANTHEMI. 93. 1° Urédospores de diverses formes : A, B, G, D, Urédosjiores imiloculaires et alors sphériques^ ellipsoïdes, ovoïdes, piriforines ; E. F. Urédospores hiloculaires ou puccini.ormes ; H, Germination d'une urédospore unilo- culaire; J, Germination d'une Urédospore biloculaire ; G, Formation d'une urédospore biloculaire (Grossissement '—).. 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 resemb
RMRE385K–. The British rust fungi (Uredinales) their biology and classification. Rust fungi. 98 UROMYCES part of the world; reported on many Leguminosse, but doubtless some of these are distinct species. Jordi has distinguished under U. Fabae three. Fig. 50. v. Fabae. Teleutospores and uredospore on Vicia Crncca.. 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.. Grove, W. B. (William Bywater), 1848-1938. Cambridge, University Press
RMRH1JJN–. The British rust fungi (Uredinales), their biology and classification. Uredineae. 10 UREDOSPORES . i ?l // :!.° * : i ⢠h 0 1 ⢠... â ,.'!, ;!'. i;- Fig. 10. Leaf of Carex jietidula, with uredo- and teleuto-sori, slightly en- larged. four) germ-pores; in fact, the uredo- resembles the secidiospore in character, and must be considered as homologous>.with itâ the stalk-cell corresponding to the intercalary cell of the latter. But they differ considerably in the fact that the uredospore is always produced singly, not in chains. (This is not true, however, of all the Uredinales.) The memb
RMRH28W4–. The British rust fungi (Uredinales) their biology and classification. Rust fungi -- Great Britain. TELEUTOSPORES 11 both (Fig. 12). The uredospore retains its capacity for germination for a longer time, even for more than three months; in fact, in certain foreign species, some of these spores acquire a thicker wall which enables them to act as a kind of resting-spore—these are called amphi- spores, but they are not formed by P. Caricis. It is found, generally, that if the spores of the Uredinales are dried gradually, they retain their power of germination for a longer time and in a better de
RMRH28WB–. The British rust fungi (Uredinales) their biology and classification. Rust fungi -- Great Britain. 10 rKKlXlSPOKKS : Fig. 10. Leaf of Carex pendula, with uredo- and teleuto-sori, slightly en- larged. four)germ-pores; in tact, tin- uredo- resembles the aecidiospore in character, and musl b»- <-nsidered as homologous with it— the stalk-cell corresponding to the intercalary cell of the latter. But they differ considerably in the fad that the uredospore is always produced singly, uot in chains. (This is not true, however, of all the Uredinales.) The membrane of the uredosjxiiv is nearly colou
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