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Puccinia Stock Photos and Images
RMCNNE37–Puccinia malvacearum also known as Hollyhock rust species within Puccinia genus known attacking members Malvaceae family.
RMPG3NN3–. Fungous diseases of plants : with chapters on physiology, culture methods and technique . Fungi in agriculture. PROTOBASIDIOMYCETES 411 first as small, flask-shaped bodies, shown in Fig. 202, breaking through the upper epidermis of the leaf. Somewhat later, and in the same spot, there appear on the under surface the aecidial. Fig. 202. Puccinia graminis. (After Ward) , section of barberry leaf showing spermogonia and ascidia; b, secidium stage, which breaks through the epidermis in somewhat similar manner. The spermogonium shows a very simple development, resulting by the gradual growth in e
RMT1JE4C–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 UROMYCES. 339 of pycnidia precedes that of teleutospores. The latter have a flattened concave base and rounded apex; their episporium is marked with delicate ribs running from apex to base. Fkj. ISl. —i•o/(ii/Ct•s TcirpirimiiiK on twis of Albizzia moniana brought by Prof. Stahl from Java. (v. Tubeuf phot.) Puccinia. Teleutospores two-celled, and eacli abjointed from its own sporophore from large d
RM2AN2X0W–Fungi, Ascomycetes, Ustilaginales, Uredinales . Fij,. 181. Puccinia Podophylli S.;fertile cell of teleutosorus givingrisetoteleutospores; after Christ-man. Fig. 182. Pliraamidiitm violaceum Went.; a. teleuto-spores, x 1080; />. fusion of nuclei in teleutospore,x 1520; after Blackman. It may be hazarded that in the Uredinales the similarity of the physio-logical history of the nuclei before they become associated is responsiblefor a minimum of attraction between them, so that there is no sufficientlystrong impulse towards fusion till meiosis is about to take place ; being,however, in the sam
RF2DM62AP–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.
RF2M17958–Larvae of Mycopdiplosis coniophaga feeding on aeciospores of Puccinia coronata on Rhamnus utilis. Cecidomyiidae is a family of flies known as gall...
RMMCK7X6–. Fig. 40. Antirrhinum Diseases. a. Rust on leaves, h. root knot, c. Uredo spores of Puccinia antir- rhini (after Schwarze), d. anthracnose lesions on stems and leaves, e. sec- tion through an acervulus of CoUetotrichiim antirrhini f. spores of C. antirrhini, (d-f after Stewart, F. C).
RMCWPAFY–Wheat (Triticum aestivum) crop, leaf infected with Brown Rust (Puccinia recondita) fungal disease, Lincolnshire, England, june
RMPG3NNA–. Fungous diseases of plants : with chapters on physiology, culture methods and technique . Fungi in agriculture. 408 FUNGOUS DISEASES OF PLANTS is one of the most common, yet it may not be considered of any special economic importance. The aecidiospores are almost twice as long as broad, 40 X 17-26 p. The uredospores are subspherical, and the teleutospores are conspicuous by their long, hyaline, and relatively thick pedicels, papillate apex, red-brown color, and verru- cose outer wall.. Fig. 200. jEcidial Stage of the Grain Rust on Barberry XIII. BLACK RUST OF GRAIN Puccinia graminis Pers. Bo
RMT1HC9B–Diseases of small grain crops Diseases of small grain crops in Illinois diseasesofsmallg35boew Year: 1939 98 ILLINOIS NATURAL HISTORY SURVEY CIRCULAR 35 LEAF RUST Puccinia rubigo-vera, var. Secalis The leaf rust of rye, known also as brown rust, attacks none of the other cereals and has no other hosts among American grasses. It is comparable, among rye diseases, to the leaf rust of wheat, crown rust of oats and leaf rust of barley. Although it has. Fig. 38.—Leaf rust of rye. The pustules shown are the brown, summer-spore pustules, from which are shed the spores that serve to spread the ru
RM2AJ5YMH–Transactions and proceedings of the Royal Society of South Australia (Incorporated) . with thepromycelia, or already empty. We have referred the rust to• P. operculariae, (Morr.) Syd., though it may be that Morrisonwas right in considering this a variety of P. coprosmae, Cooke.Groups of confluent teleutosori on the leaves are a feature ofthe latter species; this feature is not noted by McAlpine forP. operculariae, nor are mesospores which occur in our speci-mens (McAlp., 1906, p. 166). PucciNiA HiBBERTiAE, McAlp. Teleutosori on stems,leaves (amphigenous), pedicels, and calyces, causing hyper-t
RMA52RGM–Pelargonium rust Puccinia pelargoni zonalis necrosis on upper surface of a pelargonium leaf
RF2DM3DG6–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.
RF2HJER5A–Symptoms of a plant pathogen and causal agent of oat and barley crown rust - Puccinia coronata on oat leaves - Telium, plural telia.
RMMCK6JE–. Fig. ISl.—Uromucts Teppirianas on twigs of AlbUzia moiUana brought by Prof. Stahl from Java. (v. Tubeuf phot.) Puccinia. Teleutospores two-celled, and each abjointed from its own sporophore from large distinct sori. Each cell has as a rule only one germ-pore. Uredospores, teleutospores, and pycnidia (spermogonia) are not known in all the species. (1) Pycnidia, aecidia, uredospores, and teleutospores develop on the
RMG56613–Photomicrograph of midge larvae feeding on spores of antirrhinum rust, Puccinia, arenariae, pustule, Berkshire, England, August
RMPG4B5H–. Diseases of plants induced by cryptogamic parasites : introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae . Plant diseases; Parasitic plants; Fungi. 344 UREDINEAE. through the epidermis. The yellow uredospores are abjointed singly from long sporophores; they are unicellular and ovoid, with a thin granular coat beset with germ-pores (Fig. 184). The uredo- spores are easily conveyed to other grass-plants and germinate at once, their germ-tubes entering by a stoma and developing into a mycelium, which can produce a new crop of uredospores in a. Fig. 184.—Puccinia p
RMT1H73H–Diseases of truck crops Diseases of truck crops / Ralph E. Smith diseasesoftruckc119smit Year: 1940 50 California Agricultural Extension Service [Cir. 119 ENDIVE Cottony Rot.—Endive plants affected with cottony rot wilt and die on account of a rotting of the roots and the stem at the surface of the ground. Sclerotinia sclerotiorum, a white, moldy fungus with black sclerotia, can be seen on the surface. See 'Cottony Mold' (p. 90). Rust.—Affected leaves are blighted and spotted with the dusty spore '4 1 P' f ** Fig. 25.—Eust of endive leaves. pustules of a rust fungus, Puccinia hieraci
RM2AN2W67–Fungi, Ascomycetes, Ustilaginales, Uredinales . Fig. 1S4. Puccinia Malvacearum Mont.; a. conjugation Fig. 18;. Endophyllum Sen,. of unequal cells at base of 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
RF2DM3J64–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.
RF2HJER5W–Symptoms of a plant pathogen and causal agent of oat and barley crown rust - Puccinia coronata on oat leaves - Telium, plural telia.
RMMCK654–. Fkj. ISl. —i^•o/(ii/Ct•s TcirpirimiiiK on twi^s of Albizzia moniana brought by Prof. Stahl from Java. (v. Tubeuf phot.) Puccinia. Teleutospores two-celled, and eacli abjointed from its own sporophore from large distinct sori. Each cell has as a rule only one germ-pore. Uredospores, teleutospores, and pycnidia (spermogonia) are not known in all the species. (1) Pycnidia, aecidia, arcdoHpures,and teleutospores develop on the
RMG56612–Photomicrograph of a circular pustule of antirrhinum rust, Puccinia, arenariae, on a leaf underside, Berkshire, England, August
RMPG3NMD–. Fungous diseases of plants : with chapters on physiology, culture methods and technique . Fungi in agriculture. PROTOBASIDIOMYCETES 419 XVIII. HOLLYHOCK RUST Pncrinia malvacearum Mont. Dudley, W. R. The Hollyhock Rust. Cornell Agl. Exp. Sta. Built. 25: 154-155. 1890.. Fig. 204. Puccinia malvacearum: Rust of Hollyhock. (Photograph by H. H. Whetzel) The hollyhock rust is known to infest a large number of genera and species of the mallow family (Malvaceae). It is at present widely distributed throughout a large portion of the world, and is in the United States most important on the cultivated h
![Diseases of cultivated plants and Diseases of cultivated plants and trees diseasesofcultiv00massuoft Year: [1910?] Fig. 88.—Puccinia pringshcimiana. i, portion of gooseberry leaf with three aecidia or ' cluster-cups ' ; 2, section through a ' cluster-cup'; a, spores produced in chains; b, wall or peridium ; c, epidermis of host; rf, middle cells of leaf; e, mycelium of fungus ; 3, portion of sedge leaf bearing sori of teleutospores ; 4, portion of same ; 5, teleutospores. 6, uredo- spores. Fig. i nat. size, and remainder variously mag. thickened, roundish or truncate, base often narrowed, sm Stock Photo](https://c8.alamy.com/comp/T1HP64/diseases-of-cultivated-plants-and-diseases-of-cultivated-plants-and-trees-diseasesofcultiv00massuoft-year-1910-fig-88puccinia-pringshcimiana-i-portion-of-gooseberry-leaf-with-three-aecidia-or-cluster-cups-2-section-through-a-cluster-cup-a-spores-produced-in-chains-b-wall-or-peridium-c-epidermis-of-host-rf-middle-cells-of-leaf-e-mycelium-of-fungus-3-portion-of-sedge-leaf-bearing-sori-of-teleutospores-4-portion-of-same-5-teleutospores-6-uredo-spores-fig-i-nat-size-and-remainder-variously-mag-thickened-roundish-or-truncate-base-often-narrowed-sm-T1HP64.jpg "Diseases of cultivated plants and Diseases of cultivated plants and trees diseasesofcultiv00massuoft Year: [1910?] Fig. 88.—Puccinia pringshcimiana. i, portion of gooseberry leaf with three aecidia or ' cluster-cups ' ; 2, section through a ' cluster-cup'; a, spores produced in chains; b, wall or peridium ; c, epidermis of host; rf, middle cells of leaf; e, mycelium of fungus ; 3, portion of sedge leaf bearing sori of teleutospores ; 4, portion of same ; 5, teleutospores. 6, uredo- spores. Fig. i nat. size, and remainder variously mag. thickened, roundish or truncate, base often narrowed, sm Stock Photo")
RMT1HP64–Diseases of cultivated plants and Diseases of cultivated plants and trees diseasesofcultiv00massuoft Year: [1910?] Fig. 88.—Puccinia pringshcimiana. i, portion of gooseberry leaf with three aecidia or ' cluster-cups ' ; 2, section through a ' cluster-cup'; a, spores produced in chains; b, wall or peridium ; c, epidermis of host; rf, middle cells of leaf; e, mycelium of fungus ; 3, portion of sedge leaf bearing sori of teleutospores ; 4, portion of same ; 5, teleutospores. 6, uredo- spores. Fig. i nat. size, and remainder variously mag. thickened, roundish or truncate, base often narrowed, sm
RM2AXJPKC–Fungi and fungicides; a practical manual, concerning the fungous diseases of cultivated plants and the means of preventing their ravages . f pecidium sta^e; 6, same ofraspberry leaf showing both secidium and Puccinia spots. spring, aifected leaves having a peculiar golden color,which at once distinguishes them. A little later thesurface becomes more or less covered with small roundpatches of orange-colored spores, to which the commonname is due. The life-history of the fungus has onlyrecently been definitely worked out. The fungus exists on the blackberry plant in twovery different stages. The
RF2DM2R07–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.
RF2HJER6F–Symptoms of a plant pathogen and causal agent of oat and barley crown rust - Puccinia coronata on oat leaves - Telium, plural telia.
RMMCKCAY–. 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 thickened, yellow-brown, smooth, 30-50X10- 12 /A, pedicel hyaline, about as long as spore. This fungus is common on many of our wild caryophylla- ceous plants, as chickweed, stitchwort, lychnis, etc., hence all such weeds should not be allowed to grow in the neigh- bourhood of cultivated plants. The directions given under
RMPG4EHA–. Minnesota plant diseases. Plant diseases. 390 Minnesota Plant Diseases. remain in the cells of the host. The cluster-cups are found on the leaves of some coniferous tree. Spruces in the neighbor- hood of affected cow- berry plants often show an abundance of cluster cups and are usually most seriously attacked in the lower branches. It has not been proven in our American plants that these two stages are con- nected, but there seems to be considerable proba- bility that such is the case. Rust of a n emon e (Puccinia fusca Relh.). Anemone, Thalictrum and allied genera are sub- ject to the attac
RMRYR3X5–Dr L Rabenhorst's Kryptogamen-Flora von Dr. L. Rabenhorst's Kryptogamen-Flora von Deutschland, Oesterreich und der Schweiz . drlrabenhorstskr0101rabe Year: 1884 135 7. Uredosporen einzeln an der Basidie gebildet MeJampsora, — Uredosporen reihenweise von der Basidie abgeschnürt 8. 8. Promycel einzellig mit einer Sporidie . CoJcospor'nmi. — - mehrzellig mit mehreren Sporidien Chrysomyxa. lieber sieht der Gattungen. Uromyces. Teleutosporen einzellig .^^ ^^^^^^^ j^^^,^^.^,^ Lagern. Puccinia. Teleutosporen mehrzellig j Fig. 1. Uromyces Pisi; ein Spermogonium. Fig. 2. Puccinia Grossulariae; ein A
![The Century dictionary and cyclopedia; a work of universal reference in all departments of knowledge, with a new atlas of the world .. . rostaticlifjament (which see, under 2«(&opro*?a(ttT—Pubovesicalmuscles, the libers of the cvternal longitudinal muscularlayer of tne bladder which arise from the posterior surfaceof the body of the pubis. Puccianite(pochi-au-it),«. [ilucci (seedef.)-t- -ati + -itci.] One of a body of Universal-ists, followers of Francesco Pucci, an Italiantheologian of the sixteenth century. Puccinia (puk-sini-a), n. [NL. (Persoon, 1797),namedafterT.fHCf/»(,au Italian anatom Stock Photo](https://c8.alamy.com/comp/2AJADXM/the-century-dictionary-and-cyclopedia-a-work-of-universal-reference-in-all-departments-of-knowledge-with-a-new-atlas-of-the-world-rostaticlifjament-which-see-under-2oproatttpubovesicalmuscles-the-libers-of-the-cvternal-longitudinal-muscularlayer-of-tne-bladder-which-arise-from-the-posterior-surfaceof-the-body-of-the-pubis-puccianitepochi-au-it-ilucci-seedef-t-ati-itci-one-of-a-body-of-universal-ists-followers-of-francesco-pucci-an-italiantheologian-of-the-sixteenth-century-puccinia-puk-sini-a-n-nl-persoon-1797namedaftertfhcfau-italian-anatom-2AJADXM.jpg "The Century dictionary and cyclopedia; a work of universal reference in all departments of knowledge, with a new atlas of the world .. . rostaticlifjament (which see, under 2«(&opro*?a(ttT—Pubovesicalmuscles, the libers of the cvternal longitudinal muscularlayer of tne bladder which arise from the posterior surfaceof the body of the pubis. Puccianite(pochi-au-it),«. [ilucci (seedef.)-t- -ati + -itci.] One of a body of Universal-ists, followers of Francesco Pucci, an Italiantheologian of the sixteenth century. Puccinia (puk-sini-a), n. [NL. (Persoon, 1797),namedafterT.fHCf/»(,au Italian anatom Stock Photo")
RM2AJADXM–The Century dictionary and cyclopedia; a work of universal reference in all departments of knowledge, with a new atlas of the world .. . rostaticlifjament (which see, under 2«(&opro*?a(ttT—Pubovesicalmuscles, the libers of the cvternal longitudinal muscularlayer of tne bladder which arise from the posterior surfaceof the body of the pubis. Puccianite(pochi-au-it),«. [ilucci (seedef.)-t- -ati + -itci.] One of a body of Universal-ists, followers of Francesco Pucci, an Italiantheologian of the sixteenth century. Puccinia (puk-sini-a), n. [NL. (Persoon, 1797),namedafterT.fHCf/»(,au Italian anatom
RF2DM1JXY–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.
RF2HJER5G–Symptoms of a plant pathogen and causal agent of oat and barley crown rust - Puccinia coronata on oat leaves - Telium, plural telia.
RMMCTP28–. '^O = Occurrence but no loss t. = Trace ⢠0 = ko loss, no occurrence Pig. 13. Lstimated percentage redaction in yield from stripe of barley, 1919- .Stem, rust caused by Puccinia -graminis .Per.s . Stem rust of-bar Ley .caused marj^ed losses in. th e. important barley pro- duction area of the Upper rdssissippi Valley ij:) 1913. ^ â In other sections losses
RMPG4ER2–. Minnesota plant diseases. Plant diseases. 3i8 Minnesota Plant Diseases. been reported from a greenhouse in this state where it de- stroyed almost an entire winter crop of mint. The complete destruction of all diseased plants and espe- cially all subterranean portions is necessary. (Fig. 209.) Asparagus rust (Puccinia asparagi DC). Of recent years this rust of asparagus has become of great importance in the eastern states and in California and will undoubtedly soon be of equal importance in this state. In parts of eastern states aspar- agus culture in whole districts has been ruined by this p
RMT1GPT1–Diseases of cereal and forage Diseases of cereal and forage crops in the United States in 1921 diseasesofcereal21stak Year: 1922 2l8 OATS - Stem rust Stem rust caused by puccinia graminis Pers. Stem rust evidently was not as generally distributed as crown rust, as will be seen by the accompanying map (Fig. 'jG). Neither did the stem rust cause such great reductions in yield. However, it was quite generally present in the more northern oat-?:,romug states. In the extreme South the stem rust seems to be much less important than the crown rust, while in the northern states, stem rust did the gr
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
RF2DM2KWX–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.
RF2HJER57–Symptoms of a plant pathogen and causal agent of oat and barley crown rust - Puccinia coronata on oat leaves - Telium, plural telia.
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.)
RMPG0GA2–. Diseases of greenhouse crops and their control . Vegetables; Plant diseases; Plant diseases. Fig. so. Chrysanthemum Diseases. a. Botrytis blossom rot, healthy and diseased (after Spaulding), b. ray blight (after Stevens, F. L.), c. chrysanthemum rust (after Smith. R. E.). d. Urc- dospores of Puccinia chrysanthemi, e. Cylindrosporium fungus, /. Cylindro- sporium blight (e and f after Halsted).. 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
RMT3YK94–Archive image from page 363 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 350 Hypocreales. (Lindau.! agaricimim Corda, das kleine längliche, einzellige, hyaline Sporen besitzt. Als Chlamydo- sporenform gehört Mycogone puccinioides (Preuss) Sacc. dazu, deren Sporen aus 2—3, wie bei Puccinia über einander gestellten Zellen mit dicker, brauner, glatter Membran gebildet Fig. 236. A—
RM2AWJ6GC–Ontario Sessional Papers, 1901, No.12-16 . d with the pest. If the field is infested, it will be advisable to cultivate shallow,or harrow, immediately after the crop has been harvested ; and two weeks later, cultivateor harrow again, so as to force as many of the seeds as possible to sprout. In spring put inboei-crops into as large a portion of the field as practicable, and cultivate thoroughlythroughout the season ; also winter cereal crops from the rotation for some time, untilthe field is free from the weeds. Original Investigations. 1. The Asparagus Rust (Puccinia asparagi).—This fungus ma
RF2DM1AN1–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.
RMMCK64G–. Fio. IttO.—Ananone-RMt. 2 and 3, Normal plants of Anemone ranv.nculoides. 4, Aicidium pv.nclo.luiu on Anemone ranv.nculoides ; aecidia on the lower surface of the leaf; the plants are abnormally elongated, and the leaf-segments are smaller. 6 and 7, Puccinia fusca on Anemone nemorosa; the plants remiin small, 6 is completely deformed, 7 partially. 1 and 5, Aecidium leucospermum on Ammone ncmorom ; the plants are abnormally elongated and the leaf-segments smaller, (v. Tubeuf del.)
RMHK9G69–Late season infection of yellow or stripe rust, Puccinia striiformis, on winter wheat flag leaves, June
![. Photomicrographs of botanical studies. Photomicrography. 14 Pliotoinicrograplis of Botanical Studies. 7- T.S. Stem of Wheat, " Triticum." Attacked by teleutospores of puccinia graminis.. Teleutospores. Alycelium of fungus. Disorganised tissue of Stem. Vascular bundle in normal condition. 8. T.S. Leaf of Berbery. Attacked by aecidiaspores of puccinia graminis. 4 -'^-^ -^ Fully-developed acidium. ^i-' )'^-f',' ' T, ', j-.-'!#r" Mycelium of fungus. I v'' ;â ' <-"''*ff : â ' 'JSi- â Disorganised tissue of leaf. Spermogone of unlinown function.. Please note that thes Stock Photo](https://c8.alamy.com/comp/PG029B/photomicrographs-of-botanical-studies-photomicrography-14-pliotoinicrograplis-of-botanical-studies-7-ts-stem-of-wheat-quot-triticumquot-attacked-by-teleutospores-of-puccinia-graminis-teleutospores-alycelium-of-fungus-disorganised-tissue-of-stem-vascular-bundle-in-normal-condition-8-ts-leaf-of-berbery-attacked-by-aecidiaspores-of-puccinia-graminis-4-fully-developed-acidium-i-f-t-j-!rquot-mycelium-of-fungus-i-v-lt-quotff-jsi-disorganised-tissue-of-leaf-spermogone-of-unlinown-function-please-note-that-thes-PG029B.jpg ". Photomicrographs of botanical studies. Photomicrography. 14 Pliotoinicrograplis of Botanical Studies. 7- T.S. Stem of Wheat, " Triticum." Attacked by teleutospores of puccinia graminis.. Teleutospores. Alycelium of fungus. Disorganised tissue of Stem. Vascular bundle in normal condition. 8. T.S. Leaf of Berbery. Attacked by aecidiaspores of puccinia graminis. 4 -'^-^ -^ Fully-developed acidium. ^i-' )'^-f',' ' T, ', j-.-'!#r" Mycelium of fungus. I v'' ;â ' <-"''*ff : â ' 'JSi- â Disorganised tissue of leaf. Spermogone of unlinown function.. Please note that thes Stock Photo")
RMPG029B–. Photomicrographs of botanical studies. Photomicrography. 14 Pliotoinicrograplis of Botanical Studies. 7- T.S. Stem of Wheat, " Triticum." Attacked by teleutospores of puccinia graminis.. Teleutospores. Alycelium of fungus. Disorganised tissue of Stem. Vascular bundle in normal condition. 8. T.S. Leaf of Berbery. Attacked by aecidiaspores of puccinia graminis. 4 -'^-^ -^ Fully-developed acidium. ^i-' )'^-f',' ' T, ', j-.-'!#r" Mycelium of fungus. I v'' ;â ' <-"''*ff : â ' 'JSi- â Disorganised tissue of leaf. Spermogone of unlinown function.. Please note that thes
![Diseases of cultivated plants and Diseases of cultivated plants and trees diseasesofcultiv00massuoft Year: [1910?] ' PUCCINIA 309 ] circumstances, and when it occurs early in the year the leaves I fall quite early in the season, and consequently the crop is i poor in quantity and quality. As a rule the rusts can only I attack young growing leaves, but in the present case I have observed a plum-tree seriously attacked during the last week in July. A considerable amount of confusion respecting the Fig. 90.—Piicciniapruni. i, portion of diseased plum leaf; 2, teleutospore ; 3, paraphysis ; 4 Stock Photo](https://c8.alamy.com/comp/T1HPG5/diseases-of-cultivated-plants-and-diseases-of-cultivated-plants-and-trees-diseasesofcultiv00massuoft-year-1910-puccinia-309-circumstances-and-when-it-occurs-early-in-the-year-the-leaves-i-fall-quite-early-in-the-season-and-consequently-the-crop-is-i-poor-in-quantity-and-quality-as-a-rule-the-rusts-can-only-i-attack-young-growing-leaves-but-in-the-present-case-i-have-observed-a-plum-tree-seriously-attacked-during-the-last-week-in-july-a-considerable-amount-of-confusion-respecting-the-fig-90piicciniapruni-i-portion-of-diseased-plum-leaf-2-teleutospore-3-paraphysis-4-T1HPG5.jpg "Diseases of cultivated plants and Diseases of cultivated plants and trees diseasesofcultiv00massuoft Year: [1910?] ' PUCCINIA 309 ] circumstances, and when it occurs early in the year the leaves I fall quite early in the season, and consequently the crop is i poor in quantity and quality. As a rule the rusts can only I attack young growing leaves, but in the present case I have observed a plum-tree seriously attacked during the last week in July. A considerable amount of confusion respecting the Fig. 90.—Piicciniapruni. i, portion of diseased plum leaf; 2, teleutospore ; 3, paraphysis ; 4 Stock Photo")
RMT1HPG5–Diseases of cultivated plants and Diseases of cultivated plants and trees diseasesofcultiv00massuoft Year: [1910?] ' PUCCINIA 309 ] circumstances, and when it occurs early in the year the leaves I fall quite early in the season, and consequently the crop is i poor in quantity and quality. As a rule the rusts can only I attack young growing leaves, but in the present case I have observed a plum-tree seriously attacked during the last week in July. A considerable amount of confusion respecting the Fig. 90.—Piicciniapruni. i, portion of diseased plum leaf; 2, teleutospore ; 3, paraphysis ; 4
RM2AJ0MD4–The Gardeners' chronicle : a weekly illustrated journal of horticulture and allied subjects . se-berry) ; these Urcdo-sporcs go on growing, bursting,and germinating during the summer, and at lengthfrom their own threads the Puccinia of the Wheat orcorn-mildew arises. The spores of the Puccinia arenot round, or ovate and simple like the sporesof the .Ecidium and Uredo, but long and dividedby a septum in the middle, as in the Hollyhockfungus. Now these compound Puccinia sporesare like resting-spores, for they live and restall through the winter on the deca)ing leavesand stems of corn and grasses
RF2DM1A90–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.
RMMCR8BH–. LI 8- %&. K. 1. Ustilago avenae. ,£>emtöafibie. 2. Urocystis violae. ^emiBafibie. 3. Puccinia graminis. S5afibte. 4. Auricularia auricula judae. a) iöajibte, b) Stetigmen mit (Sporen. 5. Tremella lutescens, duerfcf>ttitt burdj ba§ SBaftbienlaßet, mit ®OTtibien. 6. Calocera viscosa. SBafibien. 7. Aleurodisciis amorphus. ©ajtbien. 8. Merulius lacrimalis, a^ (Scfynallenseiletx, b) SJafibien. 9. Fomes annosus, ©afibien. 10, Bovistaplumbea, Söaftbten. (2nie§ttad)@TtgIer*$rcmtI, 9lat. ^Sflariäenfam.) Y*
RMHK9G6B–Late season infection of yellow or stripe rust, Puccinia striiformis, on winter wheat flag leaves, June
RMPFEPP4–. Descriptions of new species of fungi. Fungi. DECADES OP MAINE FUNGI. 183. Puccinia Pyrolae, Cooke. Uredo-form—Unknown. h Septate-form—Spots large, pallid, orbicular; sori round, often / confluent and then elongated, concentric, bullate and compact, nearly black, surrounded by the epidermis ; spores ovate or el- liptic, scarcely constricted, peduncles elongated, clear umber brown, upper cell darkest. On leaves and petioles of Pyrola, (Cape Elizabeth, E. C. B.) This is a most distinct and unmistakable species, and apparent- ly undescribed. The external appearance, habit and color, is very much
RMT1H5KJ–Diseases of flowers and other Diseases of flowers and other ornamentals diseasesofflower118smit Year: 1940 1 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 sever
RM2AN3TF6–Danish fungi as represented in the herbarium of ERostrup . gus and thusfinding the heteroecism of Gymnosporangium sabinae, juniperi andclavariiforme at the same time and independently of de Barys disscovery of the heteroecism of Puccinia graminis, dispersa and coronata.More of 0rstf.ds books treat chiefly the diseases of cultivated plantsand their control (0rsted 62, 63 c, 63 d, 65 c, 66 b); we must thereforeconsider him the closest predecessor of Rostrlp, both as a mycologist,and as a phyto^pathologist. (Concerning 0rsted see R Brown: Biogra*phical sketch of the late Professor 0rsted. Transac
RF2DM2RXE–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.
RMMCK64X–. Fig. 183.—Puccinia r/ramiiiis (Aecidium herberidis) on Berheris communis. The lowest leaf and two others are seen on the upper surface, and show red spots with light margins, in which the pycnidia are embedded. The other leaves show the under surface with patches of aecidiu. (v. Tubeuf del.) to their neighbours to form ilie peridium. Diseased portions of leaves become considerably thickened. The cells of the single layer of palisade parenchyma are abnormally elongated, and the intercellular spaces of the spongy parenchyma, instead of being large, are small and filled with mycelium. The aecid
RMF32E30–Wheat (Triticum aestivum) crop, leaves infected with Yellow Rust (Puccinia striiformis) fungal disease, Lincolnshire, England, June
RMPG4EWD–. Minnesota plant diseases. Plant diseases. 2 88 Minnesota Plant Diseases. tion the mycelium rapidly drains away the nourishment which should go to the heads and allows of an uncontrollable evapora- tion of water through the broken skins; as a result the berries •do not fill but remain shriveled. Such wheat therefore, even if not entirely ruined, suffers a loss of grade.. ViG. 144.—Cluster-cups of the crown rust of wheat (Puccinia coronata), on swollen cushions of the stem of the alder-leaved buckthorn. Photograph by Arthur and Holway. It is also known that in states south of Minnesota the sum
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
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