RMT3WGBP–Archive image from page 40 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 Uredinales. (Dietel.) 27 nieren. Dies ist beispielsweise der Fall bei Puccinia Tragopogonis, Pucc. fusca, Uromyces scutellatus u. a., deren Mycel im Rhizom der Wirtspfl. perenniert. Solche Arten ver- ursachen meist erhebliche Deformationen ihres Wirtes. Diese bestehen oft in einem Kleinerbleiben der B. (z. B. be
RM2AXHE9Y–Nature and development of plants . tes. They exhibit a degree ofvariation not paralleled among other plants; as many as fivedifferent kinds of spores being formed by some species in theirlife history. This is due, doubtless, to the influence of the cli-mate, the spores varying with the season (spring, summer andfall) and the plants upon which the fungus grows may be acontributing factor to the variation, for one and the same fungusmay grow upon different plants, producing one or more kindsof spores on each. (a) The Life History of Puccinia.—Several species of thisgenus infest wheat and illustr
RMD3MP69–Alexanders rust, Puccinia smyrnii, pustules on the underside of alexanders leaves
RF2DM3G83–Branches leaves and pear fruits affected by orange rusty spots and horn-shaped growths with spores of the fungus Gymnosporangium sabinae in a human home garden. Pear leaves with pear rust infestation.
RF2T6JJRP–Orange corn rust fungus, Puccinia sorghi, on leaf of cornstalk. Fungus control, plant disease and yield loss maize.
RMMCK9WH–. Fig. 181.—^ Ergot on Paspalum. After Beal. REDTOP (Agrostis) Black-stem-rust {Puccinia graminis agrostis Erks.). — The rust is identical with that upon wheat and oats, though infection does not readily pass from one host to the other. Smut {Ustilago striceformis (West.) Niessl). — This is the smut described under timothy. It has been known to affect 30 per cent of the plants, and to reduce the seed yield from 300 hundredweight to 70 hundredweight. Anthracnose. See rye. TALL OATGRASS Smut (Ustilago perennans Rostr.). — This smut closely resembles that of oats, though the flower parts are not
RMPG4645–. The fungi which cause plant disease . Plant diseases; Fungi. THE FUNGI WHICH CAUSE PLANT DISEASE 327 O. Pycnia or pycnial stage I. .Ecia or tecial stage II. Uredinia or uredinia stage III. Telia or telial stage The spores in all cases, except those of the basidiospores and. Fig. 241.—Amphispores, urediuiospores and teliospores of Puccinia vexans. After Holway. pycniospores arise by direct conversion of a mycelial cell into a spore, i. e., they are chlamydospores. Mesospore is a term applied to occasional unicellular forms of teliospores found in Puccinia and related genera which do not usual
RM2CKMHGF–Oxalis Tetraphylla foliage and flowers in close up
RMT1HPK3–Diseases of cultivated plants and Diseases of cultivated plants and trees diseasesofcultiv00massuoft Year: [1910?] PUCCINIA 311 I as in other instances, one attack implies immunity in the j future. i ! Pink rust {Puccinia arenariae, Wint.) often causes injury j to cultivated pinks and carnations. It forms small blackish spots arranged in irregular circles on the leaves and stem. H', ; . .••.♦. ... ..V -- Fig. 91.—Puccinia malvacearum. Hollyhock leaf showing pustules of fungus ; 2, teleutospores, one germinating. Highly mag. Teleutospores only are present. These are fusoid or clavate, apex
RM2AJ6091–Transactions and proceedings of the Royal Society of South Australia (Incorporated) . , p. 147). Puccinia angustifoliae, McAlp. On Podotheca angusti-folia, Less., I., III., X. Wirrega B.S., Oct., 1916, T. G. B. O. By a curious confusion in the synonymy of the host plant,McAlpine gives the name as Scorzonera angustifolia, L. Theerror seems to have arisen in the following manner: —Thegenus Podosperma, Labill., 1806, becomes Podotheca, Cass.,1822, since Podosfermum, DC, was already a synonym forScorzonera, L. (Index Kewensis). Podotheca (Podosperma),belonging to the Compositae Inuleae-Gnaphalinae
RMD3MPBJ–Alexanders rust, Puccinia smyrnii, pustules on the underside of alexanders leaves
RF2DM1KT3–Branches leaves and pear fruits affected by orange rusty spots and horn-shaped growths with spores of the fungus Gymnosporangium sabinae in a human home garden. Pear leaves with pear rust infestation.
RF2T6JJRJ–Orange corn rust fungus, Puccinia sorghi, on leaf of cornstalk. Fungus control, plant disease and yield loss maize.
RMME6KFN–. Die Natürlichen Pflanzenfamilien nebst ihren Gattungen und wichtigeren Arten, insbesondere den Nutzpflanzen, unter Mitwirkung zahlreicher hervorragender Fachgelehrten begründet . Fig. 43. Puccinia graminilla (Speg.) Diet. et Ilolw. Schnitt durch ein schmäleres Aecidium mit seitlich davon an demselben Mycel erzeugten Teleutosporen 270/1. (Original.) C. Sect. Brachypuccinia. Die primäre, von Pykniden Itegleitete Uredogeneration bringt ähnliche Deformationen hervor wie bei anderen Arien die Aecidiumgeneration. Diese bestehen in scliwielenartigen Auflreibunuen bei P. bullala (Pers.) Schrot, auf
RMPG4B4E–. Diseases of plants induced by cryptogamic parasites : introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae . Plant diseases; Parasitic plants; Fungi. 358 UKEDINEAE. some confusion between plants infested with this Puccinia and those with species of Aecidium. The changes induced on anemone by either Aecidium leucospermum D.C. or Aec. puTictatum Pers. are quite distinct (Fig. 190).. Fig. 191.—Puceinia ribis on Red Currant {Ribes rubrum). Teleutospore-patches on leaves and fruit, (v. Tubeuf phot.) P. singularis Magu. On Anemone ranunculoides in Austria and south-eas
RM2CKMHCG–Oxalis Tetraphylla foliage and flowers in close up
RMRYR42R–Dr L Rabenhorst's Kryptogamen-Flora von Dr. L. Rabenhorst's Kryptogamen-Flora von Deutschland, Oesterreich und der Schweiz . drlrabenhorstskr0101rabe Year: 1884 Fig. 3. Puccinia Graminis; zwei Uredosporen. Fig. 4. JJmmyces Phyteu- matiim; zwei Teleutosporen. Fig. 5. Teleiitosporen von Puccinien: a P. Geranii Cda. h P. Primi spinosae Pers. c P. coronata Cda. d P. verrucosa (Schultz). e P. flosculosorum (Alb. et Schw.). (Fig. 1 — 3 nach de Bar}^ Pig. 5. a, b, d, e nach Corda. c nach Preuss).
RM2AXK5PM–Fungi and fungicides; a practical manual, concerning the fungous diseases of cultivated plants and the means of preventing their ravages . FIG. 34. SPRAYIXG FOR PLUM LEAF-BT.IGHT. The Plum Leaf=rust Puccinia j^^uni-spinoscBThis is a disease somewhat similar to the last.Leaves affected by it become spotted with reddish above,and yellowish-brown below, and when the attack is se-vere the trees may be defoliated. The remedial treat-ment is the same as for the leaf-blight. FUNGI AFFECTING THE CHERRY The Brown Rot Monilia fructigena As stated on page 56, where this disease is discussed in its relati
RMD3MPE9–Alexanders rust, Puccinia smyrnii, pustules on the underside of alexanders leaves
RF2DM17PE–Branches leaves and pear fruits affected by orange rusty spots and horn-shaped growths with spores of the fungus Gymnosporangium sabinae in a human home garden. Pear leaves with pear rust infestation.
RF2T6JJRD–Orange corn rust fungus, Puccinia sorghi, on leaf of cornstalk. Fungus control, plant disease and yield loss maize.
RMMCKWF5–. % ^ ^^ '4 1 P" % f **^ Fig. 25.—Eust of endive leaves. pustules of a rust fungus, Puccinia hieracii (^g. 25). Crops are some- times ruined. No practical treatment for this disease has been suggested. GARLIC^2 Nematode.—When this pest is present, the plants are stunted and killed and the bulbs decompose in certain spots in the field. These areas gradually increase in size as the nematode spreads. This is a strain of the same species—Ditylenchus dipsaci—as the bulb or stem nematode (p. 94). The variety of garlic called "Late" is much more susceptible than the "Early" v
RMPG4EXF–. Minnesota plant diseases. Plant diseases. 284 Minnesota Plant Diseases. The leaf underneath the spots is abnormally increased in size and distorted in shape. The pycnidia usually accompany the cluster cups and come from the same mycelium', but are gen- erally to be found on the upper surface of the leaf. They are probably male-cell receptacles which have lost their fertilizing- power and are now functionless. They illustrate a persistence of a habit after its usefulness has passed, a by no means uncommon phenomenon in nature.. f ^ ^ 1 Fig. 140.—Stem rust of wheat (Puccinia graminis). A secti
RM2CKMHK0–Oxalis Tetraphylla foliage and flowers in close up
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
RM2AKMB4H–Transactions of the Natural History Society of Northumberland, Durham, and Newcastle-upon-Tyne . or. Rumex acetosa •. teleuto-and uredosporeson Phfagmitis vulgaris. 9. Puccinia magnusiana, Koern. Common in Mill Lane,Norton. Aecidia on Ranunculus repens. Phragmidium, Link.I. Phragniidiuin fragariustri, Schr. Sometimes veryinjurious to Poterium officinale at Billingham. Coleosporium, Lev. 1. Coleosporium sonchi, Lev. Extremely common on thePetasites vulgaris lining Greatham Beck but absent fromBillingham. 2. Coleosporium euplirasiae, Wint. On Rhinanthus crisla-gal ii m Cowpen Marsh. Triphragmiu
RMBH2WFB–Severe leek rust (Puccinia porri) on harvested leek leaves
RF2DM2AAH–Branches leaves and pear fruits affected by orange rusty spots and horn-shaped growths with spores of the fungus Gymnosporangium sabinae in a human home garden. Pear leaves with pear rust infestation.
RF2MM8P99–Red rust of stone fruit, rust stone fruit or plum rust. A fungal disease of plum caused by Tranzschelia pruni-spinosae or T. discolor.
RMMAAH45–. Dr. L. Rabenhorst's Kryptogamen-Flora von Deutschland, Oesterreich und der Schweiz . Fig. 3. Puccinia Graminis; zwei Uredosporen. Fig. 4. JJmmyces Phyteu- matiim; zwei Teleutosporen. Fig. 5. Teleiitosporen von Puccinien: a P. Geranii Cda. h P. Primi spinosae Pers. c P. coronata Cda. d P. verrucosa (Schultz). e P. flosculosorum (Alb. et Schw.). (Fig. 1 — 3 nach de Bar}^ Pig. 5. a, b, d, e nach Corda. c nach Preuss).
RMPG4CH2–. Diseases of truck crops and their control . Vegetables. 'tx^ >. Pig. 52. Asparagus Diseases. a. Asparagus rust on stems, showing sori with winter spores, 6. cluster cup stage of Puccinia asparagi, c. Uredo or summer spores of P. asparagi. d. Teleuto or winter spores of P. asparagi (6. to d. after R. E. Smith).. 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.. Taubenhaus, Jacob Joseph, 1884-1937. New York : E. P. Dutton
RM2CKMHKF–Oxalis Tetraphylla foliage and flowers in close up
RMT3TTPN–Archive image from page 58 of Die Natürlichen Pflanzenfamilien nebst ihren. Die Natürlichen Pflanzenfamilien nebst ihren Gattungen und wichtigeren Arten, insbesondere den Nutzpflanzen, unter Mitwirkung zahlreicher hervorragender Fachgelehrten begründet dienatrlichenp0101engl Year: 1897 Fig. 28. Promycelbildung von Tilletia C'aries (4C0|1). Fig. 29. Promjcelbilduug von Puccinia rubigo vera (390/1). (Nach Tulasne.) (Nach De Bary.) Mycelium. Bei genügender Ernährung wächst der Keimschlauch bei allen Pilzen mit Ausnahme der Chytridineae, wo er unmittelbar den Anfang eines Fruchtkörpers bildet, d
RM2AX8A0C–Grevillea . * I do not think that the above Puccinia can be separated from Pucciniaasterum, Schweinitz. Macrospora is an unnecessary increase of genera, and be-longs to Pleospora, if that be entitled to rank as a genus.—[Ed. Grev.] CRYPTOGAMIC LITERATURE. Hoffmann, H.—On Geaster coliformis, P. in the BotanischeZeitung for Jane, 1873. Gronlund, C.—Contributions to the Flora of Iceland (Ilepaticceand Musci), in Botanisk Tidsskrift. Hansen, C.—On the Diatoms found in Slesvig, in ct BotaniskTidsskrift. Pts. 1 and 2. 1873. Smith, W.G.—On Abnormal Mushrooms, with numerousfigures, in the Gardeners Ch
RMBJG2DP–Leek rust (Puccinia porri) disease on leek field crop leaves
RF2DM2RGB–Branches leaves and pear fruits affected by orange rusty spots and horn-shaped growths with spores of the fungus Gymnosporangium sabinae in a human home garden. Pear leaves with pear rust infestation.
RF2HA4689–Common bunt, or stinking smut and covered smut, is a disease of spring and winter wheats caused by Tilletia tritici and laevis.
RMMCK9HJ–. Fig. 12.—Iris rust. forms numerous, small seedlike bodies or sclerotia (fig. 11) on the sur- face of the affected plants. 8. Rolfsii also attacks sugar beets and many other hosts. Affected rhizomes should be dug out and destroyed. The remaining ones should be thinned and replanted, if possible in a new place. Rust.—Powdery pustules of reddish-brown spores of a rust fungus, Puccinia iridis, may appear on the leaves (fig. 12), which may be killed prematurely if the infection is severe. Most of the commonest species and varieties of iris are fortunately immune to this disease. When the tops are
RMPFEPP7–. Descriptions of new species of fungi. Fungi. 182 DECADES OF MAINE FUNGI.. Puccinia, Pers. Spores of two kinds. Early spores, or Uredo spores, globose or nearly so, unicellular, at first with a short peduncle which ultimately falls away, yellow or brown. Later spores uniseptate, supported on a distinct peduncle. This genus is largely represented in North America. Very few are yet known from Maine. Puccinia graminis, Pers. Uredo-form, (Trichobasis rubigo-vera, Lev.) Spots yellow, heaps oval, scattered, generally on the upper surface; epidermis at length bursting longitudinally ; spores sub-glo
RM2CKMHHC–Oxalis Tetraphylla foliage and flowers in close up
RMT3WN9D–Archive image from page 96 of Die Pilze Böhmens (1908). Die Pilze Böhmens diepilzebhmens00bubuoft Year: 1908 Uredosporen von Juni, Teleutosporen im Juli auf Hordeum di st ich um, vulgare, iiexasticli uiu und zeociithou ftUgemein verbreitet. Aecidieu bisher unbekannt. ** Teleutosporen ohne Farafysen. D Zwischen den Uredosporen Parafysen vorhanden. 109. Puccinia Poarum Nielsen. Spermof,'onieu blattbeiderseits auf gelben Flecken in kleinen Gruppen, honiggelbbraun. Aecidien auf der Unterseite gelber oder rotvioletter, rundlicher Flecke in kleineren oder grösseren rundlichen Gruppen; Pseudoperidi
RM2AN2TXP–Fungi, Ascomycetes, Ustilaginales, Uredinales . f teleutosorus; b. teleutospore; Lev.; fertile cells and spores; after both after Werth and Ludwig. c. Puccinia Podophylli Hoffmann.S-; migrations at base of teleutosorus; after Christman. A sporophytic stage of exceptionally brief duration is also found in thespecies of Endophyllum and in the form on Rubus frondosus known asKunkelia nitens1. In both cases the characteristic spores are developed inbasipetal chains (fig. 185), and in both the fertile cells which give rise tothem fuse in pairs (Olive 08; Hoffmann 11), so that the spore mother-cells
RMAPEXYN–Black stem rust Puccinia graminis infection on a wheat stem USA
RF2DM2MX9–Branches leaves and pear fruits affected by orange rusty spots and horn-shaped growths with spores of the fungus Gymnosporangium sabinae in a human home garden. Pear leaves with pear rust infestation.
RF2HA4683–Common bunt, or stinking smut and covered smut, is a disease of spring and winter wheats caused by Tilletia tritici and laevis.
RMMCK5C3–. Flii. IS.— I'roiit'ic.A T'i'P' ririiiii..i mi twigs of All>i::io. monlann tjioiighl l>y I'rof. .Stiihl from Jiivti. (v. Tubeuf phot.) Puccinia. Tideutospores two-celleil, and I'ach alijuiMlt'd I'miu its own .sponjphore fn^n large distinct sori. Ivich cell has a.s a rule only «jne germ-pore. Uredosporcs, telcutospoivs, ami pvcniiha (sperniDgDniu) are not known in all the species. (l) I'l/iatil III, iiiriil ui, II riilosponx, (inil fr/i iifusfions (/irrloji on llif
RMPG4EH2–. Minnesota plant diseases. Plant diseases. Minnesota Plant Diseases. 391 posed of three cells arranged in clover-leaf fashion. The spore clusters are usually very dense and vary in size from a pin- head's width to three-quarters inch broad. The leaf under the spores colors black, so that the groups can readily be seen from the upper surface of the leaf. Cluster cups and summer spores are not known for this rust. Rust of sedges [Puccinia caricis (Sghum.) Reb.]. This is an exceedingly common rust on many Minnesota sedges. The summer and winter spores are produced on the sedge plant and the clus
RM2CKMHE6–Oxalis Tetraphylla foliage and flowers in close up
RMT3XB38–Archive image from page 136 of Die Pilze Böhmens (1908). Die Pilze Böhmens diepilzebhmens00bubuoft Year: 1908 133 Leontodou hispidus: Vysehrad, von Modfan bis zu Jarov öfters, Ra- dotin, Selc! Poficany, Velenka, Sadskä! Melnik, Klein Priesen bei Aussig (Primäre Uredo l./VI.)! Weisswassergrund im Riesengebirge (Primäre Uredo 6./VII.)! Leontodou autumnalis: Teplitz, Aussig, Herrnskretschen (Wagner). 170. Pucciuia Hyiiocboeridis Oudeuians. Spermogouien und primäre Uredosporen wie bei Puccinia Leon- todoidis, also die Lager dunkelbraun. Sekundäre Uredolager blattbeiderseits auf kleinen Flecken z
RM2AWN144–The lens . ky appearance, the edges being much darker. About six monthsago my attention was drawn to the rotten condition of several ofthe outside sheets. Even the thick pasteboard cover at one anglewas so brittle that I could easily crumble it between my fingers.My first impression was that the stains were produced from acid,but in the course of a few weeks I found that the damage had ex-tended farther over the paper, and concluded to make a microscopic 1872.] Puccinia on Paper. 171 investigation of the parts. The injury moved over the paper like awave, slightly blistering it. I removed a por
RMBC47GG–Allium rust Puccinia allii pustules on diseased leaf of Allium karataviense
RF2DM18RD–Branches leaves and pear fruits affected by orange rusty spots and horn-shaped growths with spores of the fungus Gymnosporangium sabinae in a human home garden. Pear leaves with pear rust infestation.
RF2KEAC72–Symptoms of the fungal disease - rust on hawthorn leaves.
RMMCK6JC–. Fio. 186.—Puccinia suavcolens on Cirsium arvense. The plants are abnormally elongated ; the leaves have remained smaller and simpler, and are thickly beset on the lower side with patches of chocolate-brown uredospores. (v. Tubeuf phot.) P. eriophori Thiim. Uredo- and teleutospores on Eriophorum latifolium in Siberia and Denmark ; Rostrup gives as the aeeidial form Aec. ciuerariae Rostr. P. obscura Schroet. Uredo- and teleuto.spores on Luzula; aecidia on Dellis perennis (Plowriglit). (Britain and U.S. America.) P. septentrionalis Juel. Uredo- and teleuto.spores on Polygonum vivi- parum; aecid
RMPG4EXG–. Minnesota plant diseases. Plant diseases. 2 86 Minnesota Plant Diseases.. Fig. 142.—Spores of the common "black rust" (Puccinia graminis) of wheat. 1. Cluster-cup spores from the barberry plant. 2. Summer spores from the wheat plant. 3. Winter spores from the wheat plant. Highly magnified. After Arthur and Holway. aggerated because the smaller losses due to the presence of the rust in very slight and therefore unheeded quantities may never be computed. These are, nevertheless, a' certain loss. There is only a difference in degree. The en- tire eHmination of /^^^^^ rust would theref
RM2CKMHDF–Oxalis Tetraphylla foliage and flowers in close up
RMT3XRA5–Archive image from page 150 of Die Pilze Böhmens (1908). Die Pilze Böhmens diepilzebhmens00bubuoft Year: 1908 147 fi) Sporen icarsig. l'J9. Puccinia fusca (Persoon) Winter. Aecidium fiiscinii Persoon. Spermogonien blattoberseits oder beiderseits zerstreut, gross, schwarz- braun, später schwarz. Teleutosporenlager blattunterseits mehr oder weniger dicht verteilt, rundlich, bald nackt, staubig, oft zusaiumenfliessend, braun; Sporen aus 2 kugligen oder ellipsoidischen Zellen bestehend, beiderseits abgerundet, bei der Querwand stark eingeschnürt, 31 —mO ft lang, 15—24 ;t breit; Membran hellkasta
RM2AXK570–Fungi and fungicides; a practical manual, concerning the fungous diseases of cultivated plants and the means of preventing their ravages . FIG. 34. SPRAYIXG FOR PLUM LEAF-BT.IGHT. The Plum Leaf=rust Puccinia j^^uni-spinoscBThis is a disease somewhat similar to the last.Leaves affected by it become spotted with reddish above,and yellowish-brown below, and when the attack is se-vere the trees may be defoliated. The remedial treat-ment is the same as for the leaf-blight. FUNGI AFFECTING THE CHERRY The Brown Rot Monilia fructigena As stated on page 56, where this disease is discussed in its relati
RMAPG37H–Black stem rust Puccinia graminis infection on a wheat stem USA
RF2DM1030–Branches leaves and pear fruits affected by orange rusty spots and horn-shaped growths with spores of the fungus Gymnosporangium sabinae in a human home garden. Pear leaves with pear rust infestation.
RF2JE8BYK–Leaf spot of rye, septoria leaf blotch, speckled leaf blotch of rye. Mycosphaerella graminicola.
RMMA7392–. Elementary botany . I Fig- i45« Fig. 146. Fig. 147. Fig. 148. Fig. 149. Wheat leaf with red Portion of leaf Natural size. Enlarged. Single rust, natural size. enlarged to show sorus. Figs. 145, 146.—Puccinia graminis, red-rust stage (uredo stage). Figs. 147-149.—Black rust of wheat, showing sori of teleutospores. reddish-brown or reddish pustules, and is known as the " red rust" (figs. 145, 146). Another form occurs in elongated black pustules, and this form is the one known as the, "black rust" 129
RMPFBP9F–. Der gegenwrtige Standpunkt der Mycologie mit Rcksicht auf die Lehre von den Infections-Krankheiten. Pathogenic fungi. Fig. '23. Puccinia Compositarum; durch die Spaltöffnung in die darunter befindliche Athcmhühle ein- gedrungener und daselbst weiter wachsender Keimschlauch, (nach de Bary.). Fig. 24. A. Uromyces appendiculatus; B. Puccinia Moliuiae; beide mit Promy- celien p und Sporidien s. (nach Tulasne.). 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 perfe
RM2CKMHRN–Oxalis Zeekoevleyensis flowers
RMT1JEYT–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 354 UREDINKAE. P. elymi West. (Rostrnpia elj/mi Lagerh.). On Ehjmvs arenariv.s and E. mollis. P. Baryi (Berk, et Br.). On Brachypodium in Europe and Britain, Bambtisa Thouarsii in India, Andropogon, etc., in America. P. longissima Schroet. On Koeleria cristata in Germany ; A'. Berythria in Egypt. Fig. 187.—Puccinia sorghi {Puce, maydia). Portion of Maize-leaf sh
RM2AFJ57K–. Transactions and proceedings of the Botanical Society of Edinburgh. W. W. Smith. Lilinin Davidi, Duch. TRANSACTIONS AND PROCEEDINGS OF THE BOTANICAL SOCIETY OF EDINBURGH. VOLUME XXVIII. Part IV.Session 1922-23.. EDINBURGH: PRINTED FOR THE BOTANICAL SOCIETY BY NEILL & CO., LIMITED. And to be obtained from the Segketary of the Society, at the Royal Botanic Garden. 1923. 161 CONTENTS. PAGE Proceedings of the Botanical Society of Edinburgh for 1922-1923 . xxviiThe Seedling Structure of Salix pentandra, Liim. By Ian W. Seaton,B.Sc. (Plate VIII.) Puccinia mirabilissima. Peck, A New British Record.
RMAY1R5P–Hollyhock rust Puccinia malvacearum on hollyhock upper leaf surface
RF2DM19TT–Branches leaves and pear fruits affected by orange rusty spots and horn-shaped growths with spores of the fungus Gymnosporangium sabinae in a human home garden. Pear leaves with pear rust infestation.
RF2M1796D–Samples of the stems of the cereal plant are affected by pyrenophora tritici-repentis fungus
RMMCK5BP–. Fio. ISo.—Puccinia cancis on Stliiging A'cttlc. The aecidial cushions have caused swelling and distortion of steins and leaf-stalks, also swollen outgrowths on the leaves, (v. Tubeuf phot.) Klebahn and Magnus believe that there is a Puccinia on Carex acuta and G. Goodcnoughii related to an Acciditcm on Bibes Grossularia, R. riibrum, and R. aurcum ; also a Puccinia on Carex riparia with an Aecidium on Ribcs nigrum. On this account Klebahn ^ distinguishes Puce, caricis i., ii., and iii., agreeing respectively with P. Pringshcimiana Kleb., P. caricis (Schum.), and P. Magnusii Kleb. P. Schoeleri
RMPG4FEJ–. Minnesota plant diseases. Plant diseases. Minnesota Plant Diseases. 159 Rusts (UredinecB). The rust fungi constitute a larger group of plants than the smuts and exhibit more variety of structure and habit. They may be considered as relatives of the smuts in that the winter spores of the latter may be compared with. Fig. 73.—Spores of rust fungi. 1. A cluster of winter spores of wheat rust (Puccinia graminis) on wheat plant. 2. A winter spore germinating to a thread of four cells (promycelium—basidium), each of which bears a small spore (sporidium) on a stalk. The winter spore germinates in t
RM2CKMHPN–Oxalis Zeekoevleyensis flowers
RMT3TTPP–Archive image from page 58 of Die Natürlichen Pflanzenfamilien nebst ihren. Die Natürlichen Pflanzenfamilien nebst ihren Gattungen und wichtigeren Arten, insbesondere den Nutzpflanzen, unter Mitwirkung zahlreicher hervorragender Fachgelehrten begründet dienatrlichenp0101engl Year: 1897 Fig. 28. Promycelbildung von Tilletia C'aries (4C0|1). Fig. 29. Promjcelbilduug von Puccinia rubigo vera (390/1). (Nach Tulasne.) (Nach De Bary.) Mycelium. Bei genügender Ernährung wächst der Keimschlauch bei allen Pilzen mit Ausnahme der Chytridineae, wo er unmittelbar den Anfang eines Fruchtkörpers bildet, d
RM2AGA4NG–. Dedication papers : scientific papers presented at the dedication of the laboratory building and plant houses, April 19-21, 1917. he mycelium is composed of a branching systemof very coarse hyphal threads. These hyphae measure from 5 to 7 juin diameter. In my own work on various rusts, I had never beforemet with such a coarse mycelium. Pole Evans,^ however, has calledattention to the fact that the mycelial threads of Puccinia glumarumreach the relatively enormous size of 10 to 19^1 in diameter; alsoDodge in his paper in this Memoir^ has noted that Farlow^ andWornle^ have found the hyphae in
RMC14G31–Navelwort rust (Puccinia umbilici) teleutosori of rust on a a navelwort leaf
RF2DM3F5T–Branches leaves and pear fruits affected by orange rusty spots and horn-shaped growths with spores of the fungus Gymnosporangium sabinae in a human home garden. Pear leaves with pear rust infestation.
RF2MM8P4A–Red rust of stone fruit, rust stone fruit or plum rust. A fungal disease of plum caused by Tranzschelia pruni-spinosae or T. discolor.
RMMCK5B5–. Fio. 102.—Puccinia malvacearum. Mallow leaf, with teleutospore-sori. Three teleutospores, one germinating, (v. Tubeuf del.) May or June on the leaves, stems, and petioles of the host; all are more or less deformed, and the leaves may in severe cases wither up long before the flowers appear. Sponging with a solution of permanganate of potash (two tablespoonfuls in one nuart of water), has been found an eflective remedy. P. Sherardiana Korn. On mallow in America. P. heterogenea Lager. On hollyhock in South America. P. anemones-virginianae Schwein. On Anemone. (U.S. America.)
RMPG4EX1–. Minnesota plant diseases. Plant diseases. FiG. 143.—Spores of crown rust of wheat (Puccinia coronata). w. Win- ter spores, with a crown of finger- like protuberances at the top of each spore; from the wheat plant, a. Summer spores from the wheat plant, c. Cluster-cup spores from the alder-leaved buckthorn. Highly magnified. After Arthur and Hol- way. mon wild grasses, including squirrel tail grass (Hordeum jubatum), and also that the rust from these can infect wheat plants. This is a very discouraging feature, for it seems almost impossible to eliminate all of these weeds. Unless this is don
RM2CKMHT6–Oxalis Zeekoevleyensis flowers
RMT1H392–Diseases of cereal and forage Diseases of cereal and forage crops in the United States in 1924 diseasesofcereal40hask Year: 1925 iiS '.'hv-at - St :m mst 4. Tapke, V. F. Effects of the modified hot water treatniont on gemination, grov/th, and yield of wheat. Jour. Agr. Res. 26: 79-97- Apr. 5, IQ24. STEM RUST CAUSED BY PUCCINIA GRAMIKIS PERS. Stem, rust of wheat in the United States in I924 caused very little loss. It was not to be compared in this respect with the season of IPl, 1920, or 1923. North Dakota and V/isconsin, according to reports, had the greatest losses, 3 each case. ' Minnesot
RM2ANBNBT–A text-book of mycology and plant pathology . Fig. 72.—Hollyhock rust, Puccinia malvacearum. (Nanluckel, August 19, 1915.) Brown Rust of Wheat, Puccinia triticina, with aecia unknown-Dwarf Rust of Barley, Puccinia simplex. Timothy Rust, Puccinia phlei-pralensis. Experiments to get thisform to infect barberry leaves have met with indifferent success. Chrysanthemum Rust, Puccinia chrysanthemi, on leaves of Chry-santhemum sinense in greenhouses all the year round. 204 MYCOLOGY Dandelion Rust, Puccinia taraxaci, on the dandelion Taraxacumofficinale, rather common in Europe, North America, Japan an
RF2DM3F5H–Branches leaves and pear fruits affected by orange rusty spots and horn-shaped growths with spores of the fungus Gymnosporangium sabinae in a human home garden. Pear leaves with pear rust infestation.
RF2MM8HKM–Red rust of stone fruit, rust stone fruit or plum rust. A fungal disease of plum caused by Tranzschelia pruni-spinosae or T. discolor.
RMMCR928–. Abb. 14. I. (1 — 4) Pucciuia Willemetiae, Teleutosporen. — II. Aecidieu von Puccinia Bupleuri falc.ati auf Bupleurum faleutum. — III. Teleutospore von Puccinia Saxifraijae. — IV. Teleuto- sporen von Puccinia Sorghi. — V. Teleutospoienlager von Pucciuia Aspaiagi. 52. Puccinia Asparagi De Caudolle. Spermogo nien in kle'nen Gruppen, honiggelb, zahlreich auf den Stengeln verteilt. Aecidien in länglichen Gruppen; Pseudoperidien klein, niedrig, walzen- förmig, mit weissem, zerschlitztem Rande; Pseudoperidienzellen nicht reihenförmig gestellt. Sporen polygonal und zwar kuglig, eiförmig bis ellipsoi
RMPG41FG–. Essentials of botany. Botany; Botany. 256 ESSENTIALS OF BOTANY one is known as the cluster-cup stage and the others as red . rust and llach rust, according to the usual approximate color of the spores. The rust called Puccinia graminis, growing on wheat, has its cluster-cup stage on the leaves of barberry in June. The spores from the cluster-cups are carried by the wind to the wheat, where they germi- nate and in a few days produce the red rust. A little later the black spores appear, produced by the same myce- lium. This growth is chiefly upon the stems and sheaths.. Fig. 181. A Cluster-Cup
RMT0D3JA–Dr L Rabenhorst's Kryptogamen-Flora von Dr. L. Rabenhorst's Kryptogamen-Flora von Deutschland, Oesterreich und der Schweiz drlrabenhorstskr0108rabe Year: 1907 385 Syn. Puccinia mycogone Corda Icon. Fung. I, 6 (1837), Fig. 99. Exs. Sacc. Myc. venet. 578; Klotzscb Herb. myc. 686; Fuckel Fungi rhen. 142; Kouraeguere Fungi gall. 3191, 3794; D. Sacc. Myc. ital. 579. Rasen ausgebreitet, sammetartig, rosarot, aus hyalinen, verzweigten, septierten Hyphen verwebt. Konidientragende Hyphen als kurze, einfache oder verzweigte Seitenzweige gebildet. Konidien end- 1. Mycogone rosea Link. Konidientragend
RM2ANBKNR–A text-book of mycology and plant pathology . Fig. 73.—Roeslelia auranliaca on fruit oi Amelanchier intermedia correspondingto Gymnosporangium clavipes on red cedar. (Shelter Island, New York, July 16,1915-) Ash Rust, Puccinia fraxinata, on leaves and petioles of ash anduredinospores and teliospores on salt grass, Spartina Michauxiana. Asparagus Rust, Puccinia asparagi, develops all of its spore formson the cultivated asparagus. Violet Rust, Puccinia violcB, is parasitic on about forty-six different RUST FUNGI 205 species of violets in ^Asia, Europe, Norlhand South America. It isautcccious. ^^
RMC7514X–Brown rust (Puccinia hordei) early infection on seedling barley leaf with some powdery mildew
RF2DM2PD8–Branches leaves and pear fruits affected by orange rusty spots and horn-shaped growths with spores of the fungus Gymnosporangium sabinae in a human home garden. Pear leaves with pear rust infestation.
RF2MM8P8X–Red rust of stone fruit, rust stone fruit or plum rust. A fungal disease of plum caused by Tranzschelia pruni-spinosae or T. discolor.
RMMCRJ3J–. Fig- 29. Estimated percentage of loss from stem rust of barley, 1922. Leaf rust caused by Puccinia simplex (Koern.) Erikss. & Henn. Leaf rust of barley was reported to the Survey in I922 from Connecticut, New York, Delaware, Maryland, Virginia, Kentucky, Georgia, Alabama, Louisiana, Indiana, Wisconsin, Iowa, and California. According to G. R. Bisby, the rust was collected for the first time in Manitoba, Summary by E. B. Mains: "The leaf rust of barley is apparently only severe locally. It was found attacking barley fairly heavily at Experiment, Georgia; Blacksburg, Virginia; Lexingt
RMPFEPP8–. Descriptions of new species of fungi. Fungi. Puccinia, Pers. Spores of two kinds. Early spores, or Uredo spores, globose or nearly so, unicellular, at first with a short peduncle which ultimately falls away, yellow or brown. Later spores uniseptate, supported on a distinct peduncle. This genus is largely represented in North America. Very few are yet known from Maine. Puccinia graminis, Pers. Uredo-form, (Trichobasis rubigo-vera, Lev.) Spots yellow, heaps oval, scattered, generally on the upper surface; epidermis at length bursting longitudinally ; spores sub-globose, reddish brown, easily d
RMRYR4RB–Dr L Rabenhorst's Kryptogamen-Flora von Dr. L. Rabenhorst's Kryptogamen-Flora von Deutschland, Oesterreich und der Schweiz . drlrabenhorstskr0101rabe Year: 1884 140 Etidoiihyllum. Im Bau ganz gleich den Aecidien Von Puccinia und Uromyces. Aber die Sporen bilden bei der Keimung ein Promycelium mit Sporidien. Fig. 1. Endophyllum Euphorbiae silvaticae, Spore; (nach Tulasne). Keimende XT. Uroiuyces Link (Obs. in Ord. plant, nat. IL in: Magaz. d. Gesellsch. natiirf. Freunde zu Berlin. Bd. VIL pag. 28). TeleutoSporenlager horizontal ausgebreitet, aus unter sich freien Sporen bestehend, daher meh
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
RMF0920D–Antirrhinum or snapdragon rust, Puccinia antirrhini, circular pustule groups and early individiual pustules on the underside of
RF2DM1KB2–Branches leaves and pear fruits affected by orange rusty spots and horn-shaped growths with spores of the fungus Gymnosporangium sabinae in a human home garden. Pear leaves with pear rust infestation.
RF2MM8HRD–Red rust of stone fruit, rust stone fruit or plum rust. A fungal disease of plum caused by Tranzschelia pruni-spinosae or T. discolor.
RMMCK64B–. Fig. 102.—Puccinia malvacearum. Mallow leaf, with teleutospore-sori. Tliree teleutospores, one germinating, (v. Tubeuf del.) May or June on the leaves, stems, and petioles of the host; all are more or less deformed, and the leaves may in severe cases wither up long before the flowers appear. Sponging with a solution of permanganate of potash (two tablespoonfuls in one quart of water), has been found an effective remedy. P. Sherardiana Koni. On mallow in America. P. heterogenea T.ancr. On linllylioek in South America. P. anemones-virginianae .Scliwein. On Anemone. (U.S. America.)
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