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Teleutospores Cut Out Stock Images
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
RMPG4B0D–. Diseases of plants induced by cryptogamic parasites : introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae . Plant diseases; Parasitic plants; Fungi. CRONARTICM. 383 and curl up. unknown. In some districts very common. Aecidial stage Gymnosporangium.^ Teleutospores bicellular and furnished with stalks which have gelatinous walls, so that the spores come to form part of a gelatinous mass.^ The first-formed teleutospores are thick-. Fig. 21G.—Gymnosporangiuvi clavaiiaeformc. 1, S, 3, Stages in dbvelopment of the spore-cushions. U, 5, 6, Isolated spores (enlarged);
RMRDXGTA–. Introduction to the study of fungi; their organography, classification, and distribution, for the use of collectors. Fungi. RUST FUNGI—UREDINEAE 247 species in which only teleutospores are known, and these do not germinate for a long time after the foster-plant is dead; and the Lepto-pucciniae, in which also the species only possess teleutospores, but the sori are compact, and germination takes place at once and whilst the foster-plant is living. Of course, outside of all these groups there still remain a rather large number of species, of uncertain place, mostly with only the teleutospores
RMPG41EN–. Foundations of botany. Botany; Botany. 262 FOUNDATIONS OF BOTANY prepared cross-sections through the sorus are available, especially il the material is fresh. Examine the spores and note the sha,pe, color, and surface. If the spores are shrunken, a drop of potash solution will restore the natural plumpi),ess. Draw. Spore-measurements are important in determining species. The uredospores of Puccinia graminis may be distinguished from those of other species common ^ on grasses by the greater proportionate length. The structure of the black spores (teleutospores) can be made out with- out diffi
RMRDXGTE–. Introduction to the study of fungi; their organography, classification, and distribution, for the use of collectors. Fungi. developed on Berberis vulgaris, but no corresponding uredo- spores or teleutospores upon that plant, and therefore they have to be sought elsewhere (Fig. 117). On the other hand, the uredospores and teleutospores of Puccinia graminis nourish on wheat and other grasses, whilst no spermogonia or aecidia have been known to infest the latter plants. Hence it is con- cluded that the above form the normal series, with the spermogonia and aecidia on the berberry, and the uredo
![. Timber and some of its diseases. Timber; Trees. Xil] PINE-BLISTER. 267 and found his results correct Hartig, for instance, to whose indefatigable and ingenious researches w e owe most that is known of the disease caused by the Pertdermium^ has confirmed Wolff's results ; and in. Fig 41 —A spore of Pcridermumi Pini germinating It puts forth the Iong» hranthecl eermmal h^phae on the damp surface of a leaf oi Sk.necw^ and one of the branches enters a stoma, and forms a mycelium m the leaf. after some time, the mycelium gives rise to the uredospores and teleutospores of Coleosp07imn Seneuoms (Af Stock Photo](https://c8.alamy.com/comp/PFXCND/timber-and-some-of-its-diseases-timber-trees-xil-pine-blister-267-and-found-his-results-correct-hartig-for-instance-to-whose-indefatigable-and-ingenious-researches-w-e-owe-most-that-is-known-of-the-disease-caused-by-the-pertdermium-has-confirmed-wolffs-results-and-in-fig-41-a-spore-of-pcridermumi-pini-germinating-it-puts-forth-the-iong-hranthecl-eermmal-hphae-on-the-damp-surface-of-a-leaf-oi-sknecw-and-one-of-the-branches-enters-a-stoma-and-forms-a-mycelium-m-the-leaf-after-some-time-the-mycelium-gives-rise-to-the-uredospores-and-teleutospores-of-coleosp07imn-seneuoms-af-PFXCND.jpg ". Timber and some of its diseases. Timber; Trees. Xil] PINE-BLISTER. 267 and found his results correct Hartig, for instance, to whose indefatigable and ingenious researches w e owe most that is known of the disease caused by the Pertdermium^ has confirmed Wolff's results ; and in. Fig 41 —A spore of Pcridermumi Pini germinating It puts forth the Iong» hranthecl eermmal h^phae on the damp surface of a leaf oi Sk.necw^ and one of the branches enters a stoma, and forms a mycelium m the leaf. after some time, the mycelium gives rise to the uredospores and teleutospores of Coleosp07imn Seneuoms (Af Stock Photo")
RMPFXCND–. Timber and some of its diseases. Timber; Trees. Xil] PINE-BLISTER. 267 and found his results correct Hartig, for instance, to whose indefatigable and ingenious researches w e owe most that is known of the disease caused by the Pertdermium^ has confirmed Wolff's results ; and in. Fig 41 —A spore of Pcridermumi Pini germinating It puts forth the Iong» hranthecl eermmal h^phae on the damp surface of a leaf oi Sk.necw^ and one of the branches enters a stoma, and forms a mycelium m the leaf. after some time, the mycelium gives rise to the uredospores and teleutospores of Coleosp07imn Seneuoms (Af
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
RMRE37P1–. The British rust fungi (Uredinales) their biology and classification. Rust fungi. 168 PUCCINIA the fusiform shape, thin walls, and pale colour of the teleutospores, which often become totally devoid of thickening at the apex, by the dropping off of the pale thickening cap, on germination. P. punctata is additionally distinguished by the presence of the seoidium. Fischer explains the fact, that distortions more usually accompany P. Valantiae, by the consideration that infection takes place from the basidiospores mainly through the cuticle of young and still growing parts, while teleuto-sori o
RMRE37FH–. The British rust fungi (Uredinales) their biology and classification. Rust fungi. ON UMBELLIFERiE 193 On Angelica silvestris. Not common. Uredospores, June and July; teleutospores, July—November. (Fig. 140.) Distinguished especially by tHe very bright yellow primary uredo-sori, and by the slightly larger uredospores than in allied species. Semadeni proved that it would grow also on Arohangelica, but not on ^thusa Cynapium or Peucedanum paliistre. The primary uredo-sori should be compared with the secidia of P. Smyrnii. P. Apii is also closely allied, but differs in the possession of a true c
RMRE2CTM–. 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. Gardening. 2221. Colonies of Rust on the stem of wheat. 2222, The cluster - cud stage of the wheat Rustfun- e;us Ernwing on a barberry leaf. forms, delimiteil by differences in the marked cai>acity of the uredo- or teleutospores to inoculate on ditTcrent hosts. Several rusts are common on cultivated plants, causing dis
RMRE382T–. The British rust fungi (Uredinales) their biology and classification. Rust fungi. ON POLYGONACE.E 117 On the same host-plants is a Fuccimia, which (in the absence of the teleutospores) can he distinguished only by the fact that the uredospores have two (rarely three) germ-pores and are adorned with few and distant spines. There is little doubt that many of the specimens recorded as U. Aaetosae are really the uredospores of Puooinia Acetosae. Distribution : Germany, France, Sweden, Norway, Finland. 29. Uromyces Polygon! Fckl. JEddium aviculariae Kze.; Cooke, Handb. p. 545; Micr. Fung. p. 199.
RMRE0PA4–. Agricultural botany, theoretical and practical. Botany, Economic; Botany. 736 FUNGI The teleutospores, which are arranged in long fine streaks on the leaf-sheaths, haulm and chaff, have short stalks and germinate in the autumn of the year during which they are produced. The cells of each individual teleutospore are usually superposed unsymmetrically, the upper one being frequently flattened F,0..49.-^.Td=ut»poreof/'«.. ^^ the tOp (A, Fig. 249). cinm giumarum Schm.; B, teieuto- .iEcidiospores are uuknown. Five spore of Fucctnui coronata Corda. > ^ c, teleutospore of Pticcinia. simpUx ' b
RMRE379C–. The British rust fungi (Uredinales) their biology and classification. Rust fungi. ON THESIUM 229 ^cidia on Geranium pusillum, and possibly also on G. iriolle, G. rotundifolium; uredo- and teleutospores on Polygonum Con- volvulus, August and September. Uncommon. (Fig. 176.) The connection of the Eeoidium on the first-named host and the Puccinia on Pol. Convolvulus has been experimentally demonstrated by Tranzschel. It is possible that the same parasite also attacks P. dume- torum, P. Persioaria and others. The secidium is not known for certain to have occurred in Britain. The teleuto-sori of
RMRDED3J–. Diseases of plants induced by cryptogamic parasites : introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae . Plant diseases; Parasitic plants; Fungi. CRONARTICM. 383 and curl up. unknown. In some districts very common. Aecidial stage Gymnosporangium.^ Teleutospores bicellular and furnished with stalks which have gelatinous walls, so that the spores come to form part of a gelatinous mass.^ The first-formed teleutospores are thick-. Fig. 21G.—Gymnosporangiuvi clavaiiaeformc. 1, S, 3, Stages in dbvelopment of the spore-cushions. U, 5, 6, Isolated spores (enlarged);
RMRDW9PB–. Botany for high schools and colleges. Botany. 314 BOTANY. or less elongated lines. In color they are almost invariably brown or nearly black,in marked contrast to the reddish yellow (orange) uredospores. In some cases they are produced early in the season, but in the greater number of cases they appear in the autumn, and then remain through the winter upon the dead stems of their host plants. The following spring the teleutospores germinate by sending out a jointed filament {the promycelium) from each cell; this grows to several times the length of the teleutospore, and then sends out a few
RMRDWA91–. Botany for high schools and colleges. Botany. 314 BOTANY. or less elongated lines. In color they are almost invariably- brown or nearly black,in marked contrast to the reddish yellow (orange) uredospores. In some cases they are produced early in the season, but in the greater number of cases they appear in the autumn, and then remain through the winter upon the dead stems of their host plants. The following spring the teleutospores germinate by sending out a jointed filament {the promycelium) from each cell; this grows to several times the length of the teleutospore, and then sends out a few
RMRDG511–. Foundations of botany. Botany; Botany. 262 FOUNDATIONS OF BOTANY prepared cross-sections through the sorus are available, especially il the material is fresh. Examine the spores and note the sha,pe, color, and surface. If the spores are shrunken, a drop of potash solution will restore the natural plumpi),ess. Draw. Spore-measurements are important in determining species. The uredospores of Puccinia graminis may be distinguished from those of other species common ^ on grasses by the greater proportionate length. The structure of the black spores (teleutospores) can be made out with- out diffi
RMRE0M50–. Experiments with plants. Botany. 224. Summer spores, or uredo- spores (I'ed nist stage), of the Black Stem Rust of Wheat. Autumn spores, or teleuto- spores (black rust stage), of the Black Stem Rust of Wheat. (uredospores) earlier, the other (teleutospores), later in the season. The uredospores germinate during the summer; they send out germ-tubes which enter the stomata of the leaf (Fig. 226). The teleutospores rest â â during the winter; in the spring they germinate, producing conidia (Fig. 227, c),which are borne by the wind to the leaves of the Barberry plant; here they germinate, penetr
RMRE1J1N–. 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. 38 British Uredineee and Ustilaginecs. to form elevated ridges. As an accidental variety, one sometimes sees a few bicellular spores in the true Uro- myces spore-bed; this has been ob- served with Uromyces trifolii on Vicia. The teleutospores of Puccinia are compound. They consist of two dis- tinct spores borne on one pedicel. The dilated upper extremity of th
![. The British rust fungi (Uredinales) their biology and classification. Rust fungi. 42 PUCCINIA GRAMINIS. Eigi 25. Puccinia graminis. a, aeoidia on Berberis ; ft, uredo- spore; c, teleutospores. culms; for these differences the systematic part can be con- sulted (Fig. 25). There is, however, one point of difference connected with P. graminis which possesses great biological interest—its virtual in- dependence of the secidial stage. For a long time it had been known that Barberry bushes in the hedges caused "mildew" on the corn in the neighbouring fields, and when, in 1864-5, De Bary Stock Photo](https://c8.alamy.com/comp/RE38AR/the-british-rust-fungi-uredinales-their-biology-and-classification-rust-fungi-42-puccinia-graminis-eigi-25-puccinia-graminis-a-aeoidia-on-berberis-ft-uredo-spore-c-teleutospores-culms-for-these-differences-the-systematic-part-can-be-con-sulted-fig-25-there-is-however-one-point-of-difference-connected-with-p-graminis-which-possesses-great-biological-interestits-virtual-in-dependence-of-the-secidial-stage-for-a-long-time-it-had-been-known-that-barberry-bushes-in-the-hedges-caused-quotmildewquot-on-the-corn-in-the-neighbouring-fields-and-when-in-1864-5-de-bary-RE38AR.jpg ". The British rust fungi (Uredinales) their biology and classification. Rust fungi. 42 PUCCINIA GRAMINIS. Eigi 25. Puccinia graminis. a, aeoidia on Berberis ; ft, uredo- spore; c, teleutospores. culms; for these differences the systematic part can be con- sulted (Fig. 25). There is, however, one point of difference connected with P. graminis which possesses great biological interest—its virtual in- dependence of the secidial stage. For a long time it had been known that Barberry bushes in the hedges caused "mildew" on the corn in the neighbouring fields, and when, in 1864-5, De Bary Stock Photo")
RMRE38AR–. The British rust fungi (Uredinales) their biology and classification. Rust fungi. 42 PUCCINIA GRAMINIS. Eigi 25. Puccinia graminis. a, aeoidia on Berberis ; ft, uredo- spore; c, teleutospores. culms; for these differences the systematic part can be con- sulted (Fig. 25). There is, however, one point of difference connected with P. graminis which possesses great biological interest—its virtual in- dependence of the secidial stage. For a long time it had been known that Barberry bushes in the hedges caused "mildew" on the corn in the neighbouring fields, and when, in 1864-5, De Bary
![. Timber and some of its diseases. Timber; Trees. Xil] PINE-BLISTER. 267 and found his results correct Hartig, for instance, to whose indefatigable and ingenious researches w e owe most that is known of the disease caused by the Pertdermium^ has confirmed Wolff's results ; and in. Fig 41 —A spore of Pcridermumi Pini germinating It puts forth the Iong» hranthecl eermmal h^phae on the damp surface of a leaf oi Sk.necw^ and one of the branches enters a stoma, and forms a mycelium m the leaf. after some time, the mycelium gives rise to the uredospores and teleutospores of Coleosp07imn Seneuoms (Af Stock Photo](https://c8.alamy.com/comp/RD8FN7/timber-and-some-of-its-diseases-timber-trees-xil-pine-blister-267-and-found-his-results-correct-hartig-for-instance-to-whose-indefatigable-and-ingenious-researches-w-e-owe-most-that-is-known-of-the-disease-caused-by-the-pertdermium-has-confirmed-wolffs-results-and-in-fig-41-a-spore-of-pcridermumi-pini-germinating-it-puts-forth-the-iong-hranthecl-eermmal-hphae-on-the-damp-surface-of-a-leaf-oi-sknecw-and-one-of-the-branches-enters-a-stoma-and-forms-a-mycelium-m-the-leaf-after-some-time-the-mycelium-gives-rise-to-the-uredospores-and-teleutospores-of-coleosp07imn-seneuoms-af-RD8FN7.jpg ". Timber and some of its diseases. Timber; Trees. Xil] PINE-BLISTER. 267 and found his results correct Hartig, for instance, to whose indefatigable and ingenious researches w e owe most that is known of the disease caused by the Pertdermium^ has confirmed Wolff's results ; and in. Fig 41 —A spore of Pcridermumi Pini germinating It puts forth the Iong» hranthecl eermmal h^phae on the damp surface of a leaf oi Sk.necw^ and one of the branches enters a stoma, and forms a mycelium m the leaf. after some time, the mycelium gives rise to the uredospores and teleutospores of Coleosp07imn Seneuoms (Af Stock Photo")
RMRD8FN7–. Timber and some of its diseases. Timber; Trees. Xil] PINE-BLISTER. 267 and found his results correct Hartig, for instance, to whose indefatigable and ingenious researches w e owe most that is known of the disease caused by the Pertdermium^ has confirmed Wolff's results ; and in. Fig 41 —A spore of Pcridermumi Pini germinating It puts forth the Iong» hranthecl eermmal h^phae on the damp surface of a leaf oi Sk.necw^ and one of the branches enters a stoma, and forms a mycelium m the leaf. after some time, the mycelium gives rise to the uredospores and teleutospores of Coleosp07imn Seneuoms (Af
RMRE379F–. The British rust fungi (Uredinales) their biology and classification. Rust fungi. 228 PUCCINIA [JJcidia on Geranium prateiise, G. silvaticiim-^ uredo- and teleutospores on Polygonum amphibiuni, P. lapathifoUum, July— October; not uncommon. Klebahn and BubEik report the Eecidium on G. molle, G. phaeum and other species. (Fig. 175.) Teleutospores are found not only in the separate sori described above, but also in the old uredo-sori. These latter spores are rounded at the apex ; those which grow in distinct sori often have the thickening cap forced to one side, presumably by the pressure of th
RMRE37JP–. The British rust fungi (Uredinales) their biology and classification. Rust fungi. 182 PUCCINIA Teleutospores. A. Fig. 130. P. HydrocotyUs. Teleutospore and uredospore. very few are found in the uredo-sori, ellipsoid to oblong, rounded at both ends, hardly thickened above, gently constricted, smooth, brown, 30—44 x 18 —28fi; pedicels hyaline, thin, deciduous. On Hydrocotyle vulgaris. Rare: Kew Gardens; Epping Forest; Ireland, Co. Dublin. Uredospores, July—Sep- tember; teleutospores, October. (Fig. 130.) This species ia very imperfectly known. The secidium is recorded only from South America ;
RMRE383A–. The British rust fungi (Uredinales) their biology and classification. Rust fungi. 112 UROMYCES ^cidiospores. iEcidia amphigenous, clustered in circles 5— 10 mm. diam., cylindrical, whitish, margin deeply torn; spores delicately verruculose, yellow, 18—22 fi diam. Uredospores. Sori amphigenous, scattered or gregarious, round or more frequently elongate, small, surrounded by the j;onspicuous^torn epi- dermis, ciiinamon; spores globose to oval or^Hong, delicately and sparingly echinu- late, yellowish-brown, 18—25x16—21/i; epispore about 1^ fi thick. Teleutospores. Sori amphigenous but mostly ca
RMRE380P–. The British rust fungi (Uredinales) their biology and classification. Rust fungi. 132 PUCCINIA Fig. 83. P. Ghry- santhemi. Ure- dospore (Brit- ish). delicately pedicels thick, hyaline Uredospores. Sori generally hypophyllous, on irregular pallid-yellow or brownish spots, scattered or in clusters, about 1—1| mm. diam. often circi- nate, pulverulent, snufif-brown; spores globose to ellipsoid, delicately echinulate, brown, 24— 52 X 17—27 fj,, mostly with three germ-pores. [Teleutospores. Mixed with the uredospores, oblong or ellipsoid, rounded and slightly thickened above, usually rounded or so
RMRDWA96–. Botany for high schools and colleges. Botany. UBEDINB^. 313 â walled bodies (teleutospores,* or pseudo-spores), which are one, two, three, or many-celled (Fig. 316, III., t). Like the uredospores, the teleutospores are produced beneath the. Fig. 217.âIhKdinia graminis. A, germinating teleutosporc, t^ with promyceliuni forming the sporidia. sp. B. similar promyceliuni, with sporidia. C, a sporidium, ^p, germinating on a piece of the under side of a leaf of the Barberry, the mycelium, i, penetrating the epidermis. D, a terminating uredospore, u, fourteen hours alter being placed on the leaf of
RMRE1WNW–. The British rust fungi (Uredinales) their biology and classification. Rust fungi. ON GRAMINE^ 271. Fig. 206. P. perplexans. Teleutospores. Uredospores. Sori amphigenous, scattered, roundish, ob- long or linear, occasionally con- fluent, minute, yellow-brown; spores globose to ovate, faintly •echinulate, yellow, 20—28 /a diatn. (with 4—6 scattered germ-pores on one face, McAl- pine). Teleutospores. Sori amphi- genous, scattered, occasionally confluent, minute, generally oblong or linear, about 1—1|- mm. long, always covered by the epidermis, black; spores variable, generally oblong to clavate
RMRDW9PG–. Botany for high schools and colleges. Botany. UBEDINE^^. 313 walled bodies [teleutospores,* or pseudo-spores), which are one, two, three, or many-celled (Fig. 216, ///., t). Like the uredospores, the teleutospores are produced beneath the. Fig. iVl.—Pucdnia graminis. A, germinating teleutospore, *, witti promycelium forming tlie sporidia. sp. B, similar promycelium, with sporidia. C, a sporidium, ep germinating on a piece of the under side of a leaf of the Barberry, the rayoelium, i penetrating the epidermis. D, a aerminating uredospore,«, fourteen hours alter being placed on the leaf of a g
![. Plant studies; an elementary botany. Botany. Fig. 250. Wheat rust, showing a young hypha forcing its way from the surface of a leaf down among the nutritive cells.—After H. Marshall Wash. stage in a polymorphic life history it was called the TJredc- stage, and the spores uredospores, sometimes "summer spores.". Fig. 251. Wheat rust, showing the winter spores (teleutospores).—After H. Marshall Ward. Toward the end of the summer the same mycelium develops sporophores which bear an entirely different kind of spore (Fig. 251). It is two-celled, with a very heavy black. Please note that Stock Photo](https://c8.alamy.com/comp/RE1JGN/plant-studies-an-elementary-botany-botany-fig-250-wheat-rust-showing-a-young-hypha-forcing-its-way-from-the-surface-of-a-leaf-down-among-the-nutritive-cellsafter-h-marshall-wash-stage-in-a-polymorphic-life-history-it-was-called-the-tjredc-stage-and-the-spores-uredospores-sometimes-quotsummer-sporesquot-fig-251-wheat-rust-showing-the-winter-spores-teleutosporesafter-h-marshall-ward-toward-the-end-of-the-summer-the-same-mycelium-develops-sporophores-which-bear-an-entirely-different-kind-of-spore-fig-251-it-is-two-celled-with-a-very-heavy-black-please-note-that-RE1JGN.jpg ". Plant studies; an elementary botany. Botany. Fig. 250. Wheat rust, showing a young hypha forcing its way from the surface of a leaf down among the nutritive cells.—After H. Marshall Wash. stage in a polymorphic life history it was called the TJredc- stage, and the spores uredospores, sometimes "summer spores.". Fig. 251. Wheat rust, showing the winter spores (teleutospores).—After H. Marshall Ward. Toward the end of the summer the same mycelium develops sporophores which bear an entirely different kind of spore (Fig. 251). It is two-celled, with a very heavy black. Please note that Stock Photo")
RMRE1JGN–. Plant studies; an elementary botany. Botany. Fig. 250. Wheat rust, showing a young hypha forcing its way from the surface of a leaf down among the nutritive cells.—After H. Marshall Wash. stage in a polymorphic life history it was called the TJredc- stage, and the spores uredospores, sometimes "summer spores.". Fig. 251. Wheat rust, showing the winter spores (teleutospores).—After H. Marshall Ward. Toward the end of the summer the same mycelium develops sporophores which bear an entirely different kind of spore (Fig. 251). It is two-celled, with a very heavy black. Please note that
RMRE37PR–. The British rust fungi (Uredinales) their biology and classification. Rust fungi. ON EUBIACE^ 165 ^cidiospores. ^cidia hypophyllous, scattered or collected in orbicular clusters on roundish or oblong paler spots, shortly- cylindrical, with a short white recurved margin; spores globose or broadly ellipsoid, orange-yellow, somewhat smooth, 16—23/A. Uredospores. Sori hypophyllous, minute, roundish, on the stems linear, reddish-brown, often confluent; spores globose to ovate, aculeolate, pale-brown, 22—30 x 17—23 fi, with two or three germ-pores.. Fig. 115. P. punctata. Teleutospores; a, on Gf.
![. Plants; a text-book of botany. Botany. Fig. 50 —Wheat rust, ehowing a young hypha forcing its way from the surface of a leaf down among the nutritive cells.—After H. Maeshall Wakd. stage in a polymorphic life history it was called the Uredo- stage, and the spores uredosjiores, sometimes "summer spores."'. Fig. 51. Wheat rnst, showing the winter spores (teleutospores).- H. Marshall Ward. Toward the end of the summer the same mycelium develops sporophores which bear an entirely different kind of spore (Fig. 51). It is two-celled, with a very heavy black. Please note that these images Stock Photo](https://c8.alamy.com/comp/RDWAYR/plants-a-text-book-of-botany-botany-fig-50-wheat-rust-ehowing-a-young-hypha-forcing-its-way-from-the-surface-of-a-leaf-down-among-the-nutritive-cellsafter-h-maeshall-wakd-stage-in-a-polymorphic-life-history-it-was-called-the-uredo-stage-and-the-spores-uredosjiores-sometimes-quotsummer-sporesquot-fig-51-wheat-rnst-showing-the-winter-spores-teleutospores-h-marshall-ward-toward-the-end-of-the-summer-the-same-mycelium-develops-sporophores-which-bear-an-entirely-different-kind-of-spore-fig-51-it-is-two-celled-with-a-very-heavy-black-please-note-that-these-images-RDWAYR.jpg ". Plants; a text-book of botany. Botany. Fig. 50 —Wheat rust, ehowing a young hypha forcing its way from the surface of a leaf down among the nutritive cells.—After H. Maeshall Wakd. stage in a polymorphic life history it was called the Uredo- stage, and the spores uredosjiores, sometimes "summer spores."'. Fig. 51. Wheat rnst, showing the winter spores (teleutospores).- H. Marshall Ward. Toward the end of the summer the same mycelium develops sporophores which bear an entirely different kind of spore (Fig. 51). It is two-celled, with a very heavy black. Please note that these images Stock Photo")
RMRDWAYR–. Plants; a text-book of botany. Botany. Fig. 50 —Wheat rust, ehowing a young hypha forcing its way from the surface of a leaf down among the nutritive cells.—After H. Maeshall Wakd. stage in a polymorphic life history it was called the Uredo- stage, and the spores uredosjiores, sometimes "summer spores."'. Fig. 51. Wheat rnst, showing the winter spores (teleutospores).- H. Marshall Ward. Toward the end of the summer the same mycelium develops sporophores which bear an entirely different kind of spore (Fig. 51). It is two-celled, with a very heavy black. Please note that these images
RMRE3878–. The British rust fungi (Uredinales) their biology and classification. Rust fungi. ON PLUMBAGINACE^ f 89 This species was formerly united with U. Armeriae (q.v.), but the teleutospores are distinctly different. DiSTEiBUTiON: Europe, North Africa, Siberia and North America. 4. Uromyces Armeriae L6v. Caeoma Armeriae Schlechtd. Fl. Berol. ii. 126. Uromyces Armeriae Lev. Ann. Sci. Nat. s^r. 3, viii. 375. Sydow, Monogr. ii. 40. Fischer, Ured. Sohweiz, p. 52, f. 39. XJ. Limonii Plowr. Ured. p. 122 p.p. Sacc. Syll. vii. 532 p.p. Spermogones. Scattered among the secidia, honey-coloured. JEcidiospores
RMRE37XE–. The British rust fungi (Uredinales) their biology and classification. Rust fungi. 144 PUCCINIA 18. Puccinia Cnici-oleracei Pers. Puccinia Cniei-oleraoei Pers. in Desm. Cat. des PI. omis., p. 24. Sydow, Monogr. i. 58, pi. 3, f. 47. Fischer, Ured. Schweiz, p. 292, 594, f. 213. P. Cardui Plowr. Ured. p. 216. Teleutospores. Sori hypophyllous, on discoloured roundish spots, minute, circinate, but mostly confluent in large patches as much as 5 mm. diam. which remain for a long time covered by the epidermis, compact, blackish-brown; spores clavate or subfusiform, rounded or rarely somewhat conical
RMRE373Y–. The British rust fungi (Uredinales) their biology and classification. Rust fungi. ON GEAMINE.E 277 globose, aculeate, yellow-brown, 20—28x20—24/i; epispore 3—6 fj, thick, with three germ-pores. Teleutospores. Sori similar, often confluent and as much as 8 mm. long, conspicuous, pulvi- nate, black; spores ellipsoid, rounded at both ends, slightly thickened (up to 5 fi) above, hardly constricted, smooth, brown, 32—46x20—30/i; pedicels hya- line or yellowish, curved, per- sistent, rather thin, very long (as much as 120/t); a few mesospores sometimes intermixed. [^cidia on Melampyrum spp.J; ured
RMRE37A9–. The British rust fungi (Uredinales) their biology and classification. Rust fungi. ON CARYOPHYLLACE^ 91. P. Saginae K. et S. 221 Puodnia Saginae K. et S. Exsioc. no. 221. Fuckel, Symb. Myc. p. 51. P. Arenariae Wint.; Plowr. Ured. p. 210 p.p. Sydow, Monogr. i. 553 p.p. P. Lychnidearum Link; Cooke, Handb. p. 505 ; Micr. Fung. p. 210 p.p. Teleutospores. Sori chiefly on the stems, compact, confluent, forming blackish-brown masses, about ^ cm. long, encrusting at intervals the flowering stems which are slightly thickened at that spot, rarely on the leaves; spores oblong to oblong-clavate,. Fig. 16
RMRE382K–. The British rust fungi (Uredinales) their biology and classification. Rust fungi. ON LILIACE.E 119 interrupted and anastomosing, brown, 28—44 x 22—30 ^; epi- spore 2—3} yu, thick ; pedicels hyaline, slender, deciduous.. Fig. 70. U. Lilii. a, leaf of Liliuin candiduvi, with recidia ; b, another, witli teleuto-sori, nat. size; c, cells of peridium, iu section and inner face-view; d, teleutospores ; e, teleutospore seen from above ; /, ^cidiospore, all x 600. On Liliuin candidum. Kew Gardens; also at Birmingham, 1911-3 (C.W.Lowe). /Ecidia in Aprd, May; mature teleuto- spores from June. (Fig. 70
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