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Entyloma Black & White Stock Photos

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Entyloma Black & White Stock Photos

. The Ustilagineae, or smuts, of Connecticut . Kntvloma T.obelife x 2. Fig-. 33. P- 37.. Entyloma lineatum. Stock Photo
RM2CDY6CJ–. The Ustilagineae, or smuts, of Connecticut . Kntvloma T.obelife x 2. Fig-. 33. P- 37.. Entyloma lineatum.
. Diseases of plants induced by cryptogamic parasites : introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae . Plant diseases; Parasitic plants; Fungi. 314 USTILAGINEAE. epispore, and the clusters appear black or leaden-grey. Ger- mination as in Entyloma. Melanotaenium endoirenum (Unger) (Britain). This is found on Galium MoUiigo and G. verum. The mycelium permeates the whole intercellular system of the host, and is nourished by large tufted haustoria. The host-plants remain small, with shortened internodes, shrunk leaves, and undeveloped flowers. The spores occur Stock Photo
RMPG4B7K–. Diseases of plants induced by cryptogamic parasites : introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae . Plant diseases; Parasitic plants; Fungi. 314 USTILAGINEAE. epispore, and the clusters appear black or leaden-grey. Ger- mination as in Entyloma. Melanotaenium endoirenum (Unger) (Britain). This is found on Galium MoUiigo and G. verum. The mycelium permeates the whole intercellular system of the host, and is nourished by large tufted haustoria. The host-plants remain small, with shortened internodes, shrunk leaves, and undeveloped flowers. The spores occur
. The Ustilagineae, or smuts, of Connecticut . Dcassansia opaca, Entyloma Linaria?. Fig. 31. P 35. Fig. 32, p. 34. Stock Photo
RM2CDY7YJ–. The Ustilagineae, or smuts, of Connecticut . Dcassansia opaca, Entyloma Linaria?. Fig. 31. P 35. Fig. 32, p. 34.
. Comparative morphology and biology of the fungi, mycetozoa and bacteria . Plant morphology; Fungi; Myxomycetes; Bacteriology. Fig. 81. a and b Entyloma Caleiidtilae. a mycelial fUament with two young resting-spores, b resting-spore genninating; the front pair of primary sporidia in the whorl shows conjugation at the base, c and d Entyioma Ungeriaftunt, De Bary. ragenninatingresting-spore; four primary sporidia conjugating by paiis at their apices, cf the same specimen seven houis later; commencement of the abjointiag of a secondary sporidium (gonidium) on each pair, Magn. 600 times. Fig. 82. Stock Photo
RMPG4B59–. Comparative morphology and biology of the fungi, mycetozoa and bacteria . Plant morphology; Fungi; Myxomycetes; Bacteriology. Fig. 81. a and b Entyloma Caleiidtilae. a mycelial fUament with two young resting-spores, b resting-spore genninating; the front pair of primary sporidia in the whorl shows conjugation at the base, c and d Entyioma Ungeriaftunt, De Bary. ragenninatingresting-spore; four primary sporidia conjugating by paiis at their apices, cf the same specimen seven houis later; commencement of the abjointiag of a secondary sporidium (gonidium) on each pair, Magn. 600 times. Fig. 82.
. The Ustilagineae, or smuts, of Connecticut . Entyloma lineatum.. Entylniiia Nympliafa; Entyloma Pliysalidis, Fig- 35. p. as- Fii,. ,:i6, p. 27. Stock Photo
RM2CDY4WM–. The Ustilagineae, or smuts, of Connecticut . Entyloma lineatum.. Entylniiia Nympliafa; Entyloma Pliysalidis, Fig- 35. p. as- Fii,. ,:i6, p. 27.
. Diseases of economic plants . Plant diseases. VEGETABLE AND FIELD CEOPS 287 Blotches' appear upon the leaves, first as small, moist, watery areas, associated with slight local wilting, followed soon by the appearance upon either side of tlie leaf of very small brown acervuli. The spots then change to gray and dry up. The disease spreads rapidly from plant to plant and is very destructive both under glass and in the open, rendering the plant unfit for use. White smut (Entyloma El- lisii Halst.). — The attacked plants are unmarketable, due to lack of uniform green ('olor and the presence of jK Stock Photo
RMPG4EJB–. Diseases of economic plants . Plant diseases. VEGETABLE AND FIELD CEOPS 287 Blotches' appear upon the leaves, first as small, moist, watery areas, associated with slight local wilting, followed soon by the appearance upon either side of tlie leaf of very small brown acervuli. The spots then change to gray and dry up. The disease spreads rapidly from plant to plant and is very destructive both under glass and in the open, rendering the plant unfit for use. White smut (Entyloma El- lisii Halst.). — The attacked plants are unmarketable, due to lack of uniform green ('olor and the presence of jK
. The Ustilagineae, or smuts, of Connecticut . Entylniiia Nympliafa; Entyloma Pliysalidis, Fig- 35. p. as- Fii,. ,:i6, p. 27.. Scliizonella melanogramnia x 2. Fife- .17, P- 22- Stock Photo
RM2CDY326–. The Ustilagineae, or smuts, of Connecticut . Entylniiia Nympliafa; Entyloma Pliysalidis, Fig- 35. p. as- Fii,. ,:i6, p. 27.. Scliizonella melanogramnia x 2. Fife- .17, P- 22-
. Diseases of plants induced by cryptogamic parasites : introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae . Plant diseases; Parasitic plants; Fungi. 312 USTILAGINEAE. germination produce a thread-like promyeelium bearing apical conidia, which conjugate in pairs before emerging from the host-tissues. The following species form conidia on the host-plant: Entyloma serotinum Schroet. occurs on leaves of Symphytum tuberosum, S. officincdis, and Borago officinalis. E. canescens Schroet. On Myosotis (Britain). E. fuscum Schroet. On Papaver Rhoeas and /'. Argemone. E. b Stock Photo
RMPG4B81–. Diseases of plants induced by cryptogamic parasites : introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae . Plant diseases; Parasitic plants; Fungi. 312 USTILAGINEAE. germination produce a thread-like promyeelium bearing apical conidia, which conjugate in pairs before emerging from the host-tissues. The following species form conidia on the host-plant: Entyloma serotinum Schroet. occurs on leaves of Symphytum tuberosum, S. officincdis, and Borago officinalis. E. canescens Schroet. On Myosotis (Britain). E. fuscum Schroet. On Papaver Rhoeas and /'. Argemone. E. b
. The Ustilagineae, or smuts, of Connecticut . Dcassansia opaca, Entyloma Linaria?. Fig. 31. P 35. Fig. 32, p. 34.. Kntvloma T.obelife x 2. Fig-. 33. P- 37. Stock Photo
RM2CDY782–. The Ustilagineae, or smuts, of Connecticut . Dcassansia opaca, Entyloma Linaria?. Fig. 31. P 35. Fig. 32, p. 34.. Kntvloma T.obelife x 2. Fig-. 33. P- 37.
. Diseases of plants induced by cryptogamic parasites : introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae . Plant diseases; Parasitic plants; Fungi. ENTYLOMA. 313 Still to mention are : E. Ellissi Halst., known as "white smut."^ It inhabits spinach {Spinacia oleracea), discolouring the leaves. E. ossifragi Eostr. on Narthedum osdfragwm in Denmark. E. catenulatum Bostr. on Aira caespitosa in Denmark. Fig. 169.—Entylonia Aic}iers<mii. Germin- ated spore with septate promycelium; one promycelial branch remains rudimentary, the other (to left) has produ Stock Photo
RMPG4B7T–. Diseases of plants induced by cryptogamic parasites : introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae . Plant diseases; Parasitic plants; Fungi. ENTYLOMA. 313 Still to mention are : E. Ellissi Halst., known as "white smut."^ It inhabits spinach {Spinacia oleracea), discolouring the leaves. E. ossifragi Eostr. on Narthedum osdfragwm in Denmark. E. catenulatum Bostr. on Aira caespitosa in Denmark. Fig. 169.—Entylonia Aic}iers<mii. Germin- ated spore with septate promycelium; one promycelial branch remains rudimentary, the other (to left) has produ
. Fungi, ascomycetes, ustilaginales, uredinales. Fungi. 186 HEMIBASIDIOMYCETES [CH. fields. As a rule the conidia are of the same oblong form as the basidio- spores, but, in the genus Tilletia and some of its allies, they may be stout or sickle-shaped, whereas the basidiospores are long and narrow. In Entyloma the brand-spores are capable of germination on the tissues of the host leaf, where they give rise to hyphae which penetrate through the stomata and form basidia from which basidiospores are produced. During their development the cells of the basidium, the basidiospores, or the conidia bu Stock Photo
RMRDX0Y9–. Fungi, ascomycetes, ustilaginales, uredinales. Fungi. 186 HEMIBASIDIOMYCETES [CH. fields. As a rule the conidia are of the same oblong form as the basidio- spores, but, in the genus Tilletia and some of its allies, they may be stout or sickle-shaped, whereas the basidiospores are long and narrow. In Entyloma the brand-spores are capable of germination on the tissues of the host leaf, where they give rise to hyphae which penetrate through the stomata and form basidia from which basidiospores are produced. During their development the cells of the basidium, the basidiospores, or the conidia bu
. Fungous diseases of plants : with chapters on physiology, culture methods and technique . Fungi in agriculture. 372 FUNGOUS DISEASES OF PLANTS Spores single, spore masses dusty, spores without conspicuous tube-like hyaline appendage Tilletia Spores single. Spores in loose groups, imbedded in the tissues. Entyloma Spores agglutinating in balls, spore masses dusty, spore balls invested with a cortex of sterile cells Urocystis II. LOOSE SMUT OF OATS Ustilago Arena (Pers.) Jens. Jensen, J. L. Om Kornsorternes Brand. Copenhagen, 1888. Kellerman, W. A., and Swingle, W. T. Loose Smut of Cereals. Ka Stock Photo
RMPG3NRD–. Fungous diseases of plants : with chapters on physiology, culture methods and technique . Fungi in agriculture. 372 FUNGOUS DISEASES OF PLANTS Spores single, spore masses dusty, spores without conspicuous tube-like hyaline appendage Tilletia Spores single. Spores in loose groups, imbedded in the tissues. Entyloma Spores agglutinating in balls, spore masses dusty, spore balls invested with a cortex of sterile cells Urocystis II. LOOSE SMUT OF OATS Ustilago Arena (Pers.) Jens. Jensen, J. L. Om Kornsorternes Brand. Copenhagen, 1888. Kellerman, W. A., and Swingle, W. T. Loose Smut of Cereals. Ka
. Diseases of plants induced by cryptogamic parasites : introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae . Plant diseases; Parasitic plants; Fungi. 314 USTILAGINEAE. epispore, and the clusters appear black or leaden-grey. Ger- mination as in Entyloma. Melanotaenium endoirenum (Unger) (Britain). This is found on Galium MoUiigo and G. verum. The mycelium permeates the whole intercellular system of the host, and is nourished by large tufted haustoria. The host-plants remain small, with shortened internodes, shrunk leaves, and undeveloped flowers. The spores occur Stock Photo
RMRDD7YN–. Diseases of plants induced by cryptogamic parasites : introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae . Plant diseases; Parasitic plants; Fungi. 314 USTILAGINEAE. epispore, and the clusters appear black or leaden-grey. Ger- mination as in Entyloma. Melanotaenium endoirenum (Unger) (Britain). This is found on Galium MoUiigo and G. verum. The mycelium permeates the whole intercellular system of the host, and is nourished by large tufted haustoria. The host-plants remain small, with shortened internodes, shrunk leaves, and undeveloped flowers. The spores occur
. Fungi, ascomycetes, ustilaginales, uredinales. Fungi. VIl] USTILAGINALES 187 In the regions where the formation of brand-spores is to take place, the mycehum becomes richly branched and often swollen and gelatinous. In Ustilago and Sphacelotheca the sporogenous hyphae are divided into a number of short segments in each of which the contents form a spore surrounded by an independent membrane. The spores are enclosed at first within the gelatinous parent walls, but later these disappear so that the whole mycelium is transformed into a pulverulent mass of spores. In Tilletia and Entyloma the sp Stock Photo
RMRDX0XN–. Fungi, ascomycetes, ustilaginales, uredinales. Fungi. VIl] USTILAGINALES 187 In the regions where the formation of brand-spores is to take place, the mycehum becomes richly branched and often swollen and gelatinous. In Ustilago and Sphacelotheca the sporogenous hyphae are divided into a number of short segments in each of which the contents form a spore surrounded by an independent membrane. The spores are enclosed at first within the gelatinous parent walls, but later these disappear so that the whole mycelium is transformed into a pulverulent mass of spores. In Tilletia and Entyloma the sp
. Fungi, ascomycetes, ustilaginales, uredinales. Fungi. 194 HEMIBASIDIOMYCETES [CH. pairs of associated nuclei takes place. Rawitscher observed a quite similar life-history in T. laevis. In the parasitic mycelium oiDoassansia Alismatis and Entyloina Glaucii (fig. 162) Dangeard observed binucleate cells and the fusion of their nuclei. Fig. 162. Development of brand-spores ; u. Doassansia Alismatis (Nees) Corn.; b. Entyloma Glattcii Dang.; after Dangeard. in pairs in preparation for the formation of the brand-spores. The same stages were recorded by Lutman vaDoassansiadeformans^EntylomaNympheae Stock Photo
RMRDX0TM–. Fungi, ascomycetes, ustilaginales, uredinales. Fungi. 194 HEMIBASIDIOMYCETES [CH. pairs of associated nuclei takes place. Rawitscher observed a quite similar life-history in T. laevis. In the parasitic mycelium oiDoassansia Alismatis and Entyloina Glaucii (fig. 162) Dangeard observed binucleate cells and the fusion of their nuclei. Fig. 162. Development of brand-spores ; u. Doassansia Alismatis (Nees) Corn.; b. Entyloma Glattcii Dang.; after Dangeard. in pairs in preparation for the formation of the brand-spores. The same stages were recorded by Lutman vaDoassansiadeformans^EntylomaNympheae
. Fungi, ascomycetes, ustilaginales, uredinales. Fungi. Fig. 162. Development of brand-spores ; u. Doassansia Alismatis (Nees) Corn.; b. Entyloma Glattcii Dang.; after Dangeard. in pairs in preparation for the formation of the brand-spores. The same stages were recorded by Lutman vaDoassansiadeformans^EntylomaNympheae and Urocystis Anemones (fig. 163).. Fig. 163. Urocystis Anemones (Pers.) Wint.; mycelium and young spore ball; afier Lutman. Tubiircinia pri'/nulicola infects various species oi Primula and gives rise to conidia as well as to brand-spores during its parasitic stage. Wilson has sh Stock Photo
RMRDX0T1–. Fungi, ascomycetes, ustilaginales, uredinales. Fungi. Fig. 162. Development of brand-spores ; u. Doassansia Alismatis (Nees) Corn.; b. Entyloma Glattcii Dang.; after Dangeard. in pairs in preparation for the formation of the brand-spores. The same stages were recorded by Lutman vaDoassansiadeformans^EntylomaNympheae and Urocystis Anemones (fig. 163).. Fig. 163. Urocystis Anemones (Pers.) Wint.; mycelium and young spore ball; afier Lutman. Tubiircinia pri'/nulicola infects various species oi Primula and gives rise to conidia as well as to brand-spores during its parasitic stage. Wilson has sh
. Diseases of economic plants . Plant diseases. VEGETABLE AND FIELD CEOPS 287 Blotches' appear upon the leaves, first as small, moist, watery areas, associated with slight local wilting, followed soon by the appearance upon either side of tlie leaf of very small brown acervuli. The spots then change to gray and dry up. The disease spreads rapidly from plant to plant and is very destructive both under glass and in the open, rendering the plant unfit for use. White smut (Entyloma El- lisii Halst.). — The attacked plants are unmarketable, due to lack of uniform green ('olor and the presence of jK Stock Photo
RMRDD8TD–. Diseases of economic plants . Plant diseases. VEGETABLE AND FIELD CEOPS 287 Blotches' appear upon the leaves, first as small, moist, watery areas, associated with slight local wilting, followed soon by the appearance upon either side of tlie leaf of very small brown acervuli. The spots then change to gray and dry up. The disease spreads rapidly from plant to plant and is very destructive both under glass and in the open, rendering the plant unfit for use. White smut (Entyloma El- lisii Halst.). — The attacked plants are unmarketable, due to lack of uniform green ('olor and the presence of jK
. Comparative morphology and biology of the fungi, mycetozoa and bacteria . Plant morphology; Fungi; Myxomycetes; Bacteriology. Fig. 81. a and b Entyloma Caleiidtilae. a mycelial fUament with two young resting-spores, b resting-spore genninating; the front pair of primary sporidia in the whorl shows conjugation at the base, c and d Entyioma Ungeriaftunt, De Bary. ragenninatingresting-spore; four primary sporidia conjugating by paiis at their apices, cf the same specimen seven houis later; commencement of the abjointiag of a secondary sporidium (gonidium) on each pair, Magn. 600 times. Fig. 82. Stock Photo
RMRDBTJT–. Comparative morphology and biology of the fungi, mycetozoa and bacteria . Plant morphology; Fungi; Myxomycetes; Bacteriology. Fig. 81. a and b Entyloma Caleiidtilae. a mycelial fUament with two young resting-spores, b resting-spore genninating; the front pair of primary sporidia in the whorl shows conjugation at the base, c and d Entyioma Ungeriaftunt, De Bary. ragenninatingresting-spore; four primary sporidia conjugating by paiis at their apices, cf the same specimen seven houis later; commencement of the abjointiag of a secondary sporidium (gonidium) on each pair, Magn. 600 times. Fig. 82.
. Diseases of plants induced by cryptogamic parasites : introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae . Plant diseases; Parasitic plants; Fungi. 312 USTILAGINEAE. germination produce a thread-like promyeelium bearing apical conidia, which conjugate in pairs before emerging from the host-tissues. The following species form conidia on the host-plant: Entyloma serotinum Schroet. occurs on leaves of Symphytum tuberosum, S. officincdis, and Borago officinalis. E. canescens Schroet. On Myosotis (Britain). E. fuscum Schroet. On Papaver Rhoeas and /'. Argemone. E. b Stock Photo
RMRDD809–. Diseases of plants induced by cryptogamic parasites : introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae . Plant diseases; Parasitic plants; Fungi. 312 USTILAGINEAE. germination produce a thread-like promyeelium bearing apical conidia, which conjugate in pairs before emerging from the host-tissues. The following species form conidia on the host-plant: Entyloma serotinum Schroet. occurs on leaves of Symphytum tuberosum, S. officincdis, and Borago officinalis. E. canescens Schroet. On Myosotis (Britain). E. fuscum Schroet. On Papaver Rhoeas and /'. Argemone. E. b
. Diseases of plants induced by cryptogamic parasites : introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae . Plant diseases; Parasitic plants; Fungi. ENTYLOMA. 313 Still to mention are : E. Ellissi Halst., known as "white smut."^ It inhabits spinach {Spinacia oleracea), discolouring the leaves. E. ossifragi Eostr. on Narthedum osdfragwm in Denmark. E. catenulatum Bostr. on Aira caespitosa in Denmark. Fig. 169.—Entylonia Aic}iers<mii. Germin- ated spore with septate promycelium; one promycelial branch remains rudimentary, the other (to left) has produ Stock Photo
RMRDD7YW–. Diseases of plants induced by cryptogamic parasites : introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae . Plant diseases; Parasitic plants; Fungi. ENTYLOMA. 313 Still to mention are : E. Ellissi Halst., known as "white smut."^ It inhabits spinach {Spinacia oleracea), discolouring the leaves. E. ossifragi Eostr. on Narthedum osdfragwm in Denmark. E. catenulatum Bostr. on Aira caespitosa in Denmark. Fig. 169.—Entylonia Aic}iers<mii. Germin- ated spore with septate promycelium; one promycelial branch remains rudimentary, the other (to left) has produ
. Fungous diseases of plants : with chapters on physiology, culture methods and technique . Fungi in agriculture. 372 FUNGOUS DISEASES OF PLANTS Spores single, spore masses dusty, spores without conspicuous tube-like hyaline appendage Tilletia Spores single. Spores in loose groups, imbedded in the tissues. Entyloma Spores agglutinating in balls, spore masses dusty, spore balls invested with a cortex of sterile cells Urocystis II. LOOSE SMUT OF OATS Ustilago Arena (Pers.) Jens. Jensen, J. L. Om Kornsorternes Brand. Copenhagen, 1888. Kellerman, W. A., and Swingle, W. T. Loose Smut of Cereals. Ka Stock Photo
RMRDJ61H–. Fungous diseases of plants : with chapters on physiology, culture methods and technique . Fungi in agriculture. 372 FUNGOUS DISEASES OF PLANTS Spores single, spore masses dusty, spores without conspicuous tube-like hyaline appendage Tilletia Spores single. Spores in loose groups, imbedded in the tissues. Entyloma Spores agglutinating in balls, spore masses dusty, spore balls invested with a cortex of sterile cells Urocystis II. LOOSE SMUT OF OATS Ustilago Arena (Pers.) Jens. Jensen, J. L. Om Kornsorternes Brand. Copenhagen, 1888. Kellerman, W. A., and Swingle, W. T. Loose Smut of Cereals. Ka
. Danish fungi as represented in the herbarium of E. Rostrup;. Fungi. Tab. V.. Fig. 63, Entyloma Fig. 57-58: Entyloma Henningsianum Sydow, hab loma ossifragi Rostrup, sp. —, hab.-p. — Fig. 61: Entyloma catenulatum Rostrup, sp. Fig. 62: Entyloma crastophilum Sacc. from Avena pubescens, sp. picridis Rostrup, sp. i^. — Fig. 64-66: Entyloma matricariae Rostrup, conidia of diffe- rent size SI. — Fig. 67: Resting spores of the same, -22. Fig. b8-69: Urocystis coral- loides Rostrup, hab.-J-, sp. -p. — Fig. 70: Uromyces scleranthi Rostrup, uredosp. ™ Fig. 71: Uredo glyceriae mihi -!^. q ^osfriip del Stock Photo
RMRE38NR–. Danish fungi as represented in the herbarium of E. Rostrup;. Fungi. Tab. V.. Fig. 63, Entyloma Fig. 57-58: Entyloma Henningsianum Sydow, hab loma ossifragi Rostrup, sp. —, hab.-p. — Fig. 61: Entyloma catenulatum Rostrup, sp. Fig. 62: Entyloma crastophilum Sacc. from Avena pubescens, sp. picridis Rostrup, sp. i^. — Fig. 64-66: Entyloma matricariae Rostrup, conidia of diffe- rent size SI. — Fig. 67: Resting spores of the same, -22. Fig. b8-69: Urocystis coral- loides Rostrup, hab.-J-, sp. -p. — Fig. 70: Uromyces scleranthi Rostrup, uredosp. ™ Fig. 71: Uredo glyceriae mihi -!^. q ^osfriip del
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