RMAGWJRM–Euphorbia rust Melampsora euphorbiae on Euphorbia griffithii Fireglow leaves
RMGD6FF9–Willow Rust Melampsora spp.
RMACGHPA–Willow rust Melampsora spp pustules on Salix sp leaf underside
RME8DMEE–Poplar Tree Populus sp. leaves covered in a Rust Fungus Melampsora medusae
RMBCRFMY–Willow rust Melampsora spp pustules on Salix sp leaf underside
RM2BK6FT0–An example of the yellow rust fungi Melampsora populina that is growing on Dog’s Mercury, Mercurialis perennis, that was found growing at the side of
RMA4BXT6–Hypericum rust Melampsora hypericorum on the lower surface of Hypericum x inodorum leaves
RM2BPBM16–Rust fungus (Melampsora populnea) on Dog's Mercury (Mercurialis perennis)
RMACG8JJ–Hypericum rust Melampsora hypericorum on the lower surface of Hypericum x inodorum leaves
RMETBHK6–Poplar Leaf Rust, Melampsora Populina, Report of the Commissioner of Agriculture, US Dept of Agriculture, Illustration, 1888
RMBETR9F–Poplar rust (Melampsora larici-populini) on the leaf of Populus robusta
RF2T1P3T7–Basidiomycota parasite fungi (Melampsora) on a willow leaf
RM2ETH5CW–Phragmidium and Melampsora.
RM2A9E11X–Melampsora euphorbiae - Spurge rust on Sun Spurge - Euphorbia helioscopia
RM2AN3129–Fungi, Ascomycetes, Ustilaginales, Uredinales . Fig. 1;.,. Phragmidium violaceum Wint.; migration ofei nil nucleus into fertile cell of caeoma, x 950; alterBlackmail.. Fig. 174. Melampsora Roslrupi Wagn.;paired fertile cells, x 1:00;, afterBlackman and I- u er.
RF2JN771F–White poplar leaf with symptoms of infection, fungal disease.
RMPG4B32–. Diseases of plants induced by cryptogamic parasites : introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae . Plant diseases; Parasitic plants; Fungi. MELAMPSORA. 367 The patches of Caeoma laricis Hartig.^ appear as golden-yellow cushions on the underside of the needles. The sporophores from which the aecidiospores are abjointed, form the centre of the patch, the periphery being occupied by numerous sterUe threads, which grow out as long paraphyses; it may so happen that the whole cushion consists only of these last. The formation of Gaeoma- patches is preceded by
RMMCTMAX–. ^^'^i i^oderate â â --â¢5 occasional ⢠Scatter '-Oundaries 0: '^'istricts occurrences Hiain flax ^row. n^J.^^; Occurren- of flay rust (Melampsora 1- .J.^.,t M cease Survey, â^ snoi ]
RM2BK6FB5–An example of the yellow rust fungi Melampsora populina that is growing on Dog’s Mercury, Mercurialis perennis, that was found growing at the side of
RM2BPBM17–Rust fungus (Melampsora populnea) on Dog's Mercury (Mercurialis perennis)
RMBETR68–Poplar rust (Melampsora larici-populini) on the leaf of Populus robusta
RF2T1P3X4–Basidiomycota parasite fungi (Melampsora) on a willow leaf
RMA4BXT3–Hypericum Rust Melampsora hypericorum on the upper surface of Hypericum x inodorum leaves
RMW15A4M–Archive image from page 130 of Deutsche Flora Pharmaceutisch-medicinische Botanik Ein. Deutsche Flora. Pharmaceutisch-medicinische Botanik. Ein Grundriss der systematischen Botanik zum Selbststudium für Aerzte, Apotheker und Botaniker . deutscheflorapha00kars Year: 1880-83. Sterigmatomycetes 87 Melampsora Gast. Gonidien, Dauer,lonklien, einfach, gestreckt-kegelförmig oder keulenförmig, dunkelbraun, glatt, neben Saftfäden, zu einem flachen, von der Oberhaut der Nälirpfl, bedeckten , erst wenn diese ab- gestorben, völlig entwickelten, anfangs gelben, später braunen, kl-ustenförmigeu Lag
RMAGWM3T–Euphorbia rust Melampsora euphorbiae pustules on ornamental Euphorbia dulcis leaves
RMB5BWG2–Euphorbia rust Melampsora euphorbiae on Euphorbia griffithii Fireglow leaves
RM2AFTBNE–. Skogsvårdsföreningens tidskrift. Fg- 7- Melampsora pinitorqua (Braun) Rostr. Tvärsnitt genom teleutosporsamlingar,^a: ^, b: 2l2.. Från aspblad, insamlade vid L. Vellenattnet d. ^^^^ 1916.—vQuerschnitte durch Teleutosporenansammlungen, a: ^-^, 6: ^-^—. Von Espenblättem, einge-sammelt d. •;,, 1916. gulpudrade av de frilagda, gula uredosporerna. I augusti börjar utbild-nmgen av de för övervintringen avsedda teleutosporerna eller vinter-sporerna. Dessa utbildas från samma mycel, som förut alstrat uredo-sporer. De uppstå liksom dessa pä bladundersidan — endast på dennaoch ej säsom hos närstående
RMPG4B37–. Diseases of plants induced by cryptogamic parasites : introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae . Plant diseases; Parasitic plants; Fungi. 366 UREDINEAE. in shape, yellow in colour, and their outer coat is beset with spiny projections. The stalk-cells grow out into elongated tubes, after completion of spore-formation. In the vieiuity of the scar of a Caeoma-patch, the twig turns brown and its tissues become permeated with resin, while the tissues underlying the patch die even into the pith. Hartig's ^ investigations show that this same Melampsora cause
RMMCK6H6–. Fig. 195.—Phragmidium rvhi from Rubm rrutirogui. One spherical immature te- leutospore, and two well-developed and germinating ones. (After Tulasne.) Melampsora. Teleutospores dark and unicellular, in some cases multi- cellular by formation of new walls, generally in a vertical
RM2BK6B58–An example of the yellow rust fungi Melampsora populina that is growing on Dog’s Mercury, Mercurialis perennis, that was found growing at the side of
RF2T1P3T4–Basidiomycota parasite fungi (Melampsora) on a willow leaf
RMW166MW–Archive image from page 220 of Die Krankheiten der Pflanzen; ein. Die Krankheiten der Pflanzen; ein Handbuch für Land- und Forstwirte, Gärtner, Gartenfreunde und Botaniker . diekrankheitend02fran Year: 1895 8. Kapitel: SRoftpile (Urebiuaceen) als Urfad)c ber SRoftfranfticiteii 205 20. Melampsora sparsa Winter, auf ben S3{atteru üon Arctostaphylos Sluf Arctosta- alpina in iz fdiDeiger Sllpeu phyios. 21. Melampsora Pirolae Schrot., auf htw blättern ber Pirola- 2luf Pirola. 5(rteu, uieift iui Ãrebouftanb (Uredo Pirolae Mart.). 5iö. 39. Calyptospora Göppcrtiana. A. eine flauje OOU Vac
RMB5BX85–Euphorbia rust Melampsora euphorbiae on Euphorbia griffithii Fireglow leaves
RM2AFTCE6–. Skogsvårdsföreningens tidskrift. Fig. 5. Melampsora pinitorqita (Braun) R»:iSTR. a: uredosporer, b: safttrådar. [5Ao]. Fränaspblad, insamlade vid Malingsbo i Dalarna d.--/g IQII.— ya: Uredosporen, /^.-Saft-fiiden. ,^^—J. Von Espenblättem, eingesaranielt bei Malingsbo, Dalarna, d.—/g igii.^ 3Ielanipsora-y{er vare sig i märg eller bark i eller intill knäckessjukssåren.I några fall trallades dock levande hyfer av karaktäristisk brun färg isjälva sårytan. oförtydbart saprofytiska svamphyfer. Caeomasporerna äro genast grobara.^ Det vid groningen framgåendemycelet fordrar för sin normala utveckl
RMB5BWF0–Euphorbia rust Melampsora euphorbiae on Euphorbia griffithii Fireglow leaves
RMPG4319–. Diseases of plants induced by cryptogamic parasites : introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae . Plant diseases; Parasitic plants; Fungi. 10 THE PARASITIC FUNGI. others, like Podosphaera castagnei, they take the form of broadened closely-clinging hyphae with haustoria. Frank describes a swell- ing of the germ-tube of Fuskladium tremulae just before the infecting hypha pierces the' cell-walls of its host. A similar- phenomenon can be observed in Polystigma rubrum, in Gnomonia erythrostoma, and in the germinating aecidiospores of Melampsora Goeppertiana
RMMCR8NN–. .Abb. .5.5. Rlelampsora Mm/nusiana. 1. Uredosporen mit Parafysen. 2. Dieselben vergrössert. 3. Eine Partie aus dem Teleutospnreiilager. (Nach Klebahn.) 286. Melampsora Rostriipii Wagner Spermogonien in kleinen, lockeren Gruppen blattbeiderseits, honigbra halbkugelig gewölbt.
RMT1KCYR–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 MELAMPSORA. 367 The patches of Caeoma laricis Hartig, appear as golden-yellow cushions on the underside of the needles. The sporophores from which the aecidiospores are abjointed, form the centre of the patch, the periphery being occupied by numerous sterile threads, which grow out as long paraphyses ; it may so happen that the whole cushion consists only of these last. The formation of Cacoma- patch
RM2AJ5060–Fungous diseases of plants . h a Fig. 213. CoLEospoRiu:i Senecionis {b after Tulasne) attaining a maximum thickness of 30-40/x. XXVIII. RUST OF POPLAR Melampsom tre/iii/he Tul. Tulasne applied the above name to a rust of the poplar {Popuhist re HI N la) occurring throughout a considerable range in Europe.It would seemthat this namewould now in-clude at leastthree forms, orspecies, as dis-tinguished byKlebahn, viz.,Melampsora PinitorquaRostr,, MelampsoraLariei-trem nice Kleb.,and Melampsora Mag-misiana Wagn, These. Fig. 214. Melampsora tremul^ : Uredospores AND TeLEUTOSPORES 438 FUNGOUS DISEAS
RMB5BWGP–Euphorbia rust Melampsora euphorbiae on Euphorbia griffithii Fireglow leaves
RMPG3NJA–. Fungous diseases of plants : with chapters on physiology, culture methods and technique . Fungi in agriculture. Fig. XXVIII. RUST OF POPLAR Melampsora tremula? Tul. Tulasne applied the above name to a rust of the poplar (Popidus tremula) occurring throughout a considerable range in Europe. It would seem that this name would now in- clude at least three forms, or species, as dis- tinguished by Klebahn, viz., Melampsora Pinitorqua Rostr., Melampsora Larici-tremula Kleb., and Melampsora Mag- nusiana Wagn. These. Fig. 214. Melampsora tremula*. : Uredospores and teleutospores. Please note that th
RMMCK649–. Fig. 195. frutkoeus. lUiViii ruhi from Hubus erical iimiuvture te- leutospore, and two well-developed and germinating ones. (After Tulasne.) Melampsora. Teleutospores dark and unicellular, in some cases niulti- celhdar l)y formation of new walls, generally in a vertical
RMT1HRD9–Diseases of cultivated plants and Diseases of cultivated plants and trees diseasesofcultiv00massuoft Year: [1910?] MELAMPSORA 325 Pine branch twist.—The aecidium phase of Melampsora pinitorqua, ostxn {=Caeoma pinitorqiaan, A. Br.), has been shown by Hartig to be very destructive to young pines, seedlings being sometimes diseased as they appear above ground. About the age of thirteen the disease dies out, and those that have not been too severely attacked, recover. Plants that are attacked when quite young are usually killed, Fig. ()Z.—Melampsora pinito?-qua. i, top of young pine attacked
RM2AFTAFA–. Skogsvårdsföreningens tidskrift. 32, för Melampsora phiitorqita (Braun) Rostr. upptagitdet svenska namnet »tallens knäckesjuka•». Detta namn harockså kommit till användning i de senare årens handböcker]m skogslilteraturens område (A. Wahlgren, Skogsskötsel.Stockholm 1914, sid. 42S; Nii.s SvLVÉN, De svenska skogs- (1091) OM TALLENS K.XÄCKESJUKA 279 huvudskottet och ett eller flera sidoskott samtidigt vara skadade (fig. 13—17).Dä flera skott angripits och ersättningsskott senare komma till utveckling,bliver en krokvuxen, flerstammig, buskliknande tallplanta i regel följden avsvampangreppet (jm
RMB5C0C9–Euphorbia rust Melampsora euphorbiae on Euphorbia griffithii Fireglow leaves
RMPG462K–. The fungi which cause plant disease . Plant diseases; Fungi. 342 THE FUNGI WHICH CAUSE PLANT DISEASE Wall slightly colored 16. Cionothriz. Telia with a peridium Telia half projecting above the host surface. .• 17. Dietelia. Telia sunken in the tissue of the host 18. EndophyUum, p. 353. Teliospores 2-celled Peridium present 19. Pucciniosita. Peridium none 20. Didymopsora. Melampsora Castaigne (p. 340) 0. Pycnia half spherical. 1. .^cia of caeoma-type, no peridium or paraphyses. II. Urediniospores solitary, membrane colorless. III. Teliospores 1-celled, rarely more, in flat irregularly limited
RMACG8JT–Hypericum rust Melampsora hypericorum on the upper lower surface of Hypericum x inodorum leaves
RMMCK5AR–. Fig. 1115. — I'lii-iijihiiUiHM iiiiii from HuIiuji I'lUtiioKiig. Olio spliericil iiiiiiiiiture to- leutosjioro, iiiul two well-iievelopcU and Kurininatilig ones. (After Tulasne > Melampsora. Ti-lfntospores darU and mnccllular, in .-^oiiu' cast's multi- (•filular by furiiialion id' now walls, gi'iioially in a vcrtiial
RMBCRFNP–Willow rust Melampsora spp pustules on Salix sp leaf underside
RMT1JFJW–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 MELAMPSORA. 367 The patclies of Caimna laricia Hartiu/ appear as golden-yellow cushions on the underside of the needles. The sporophores from which the aecidiosj)ores are abjointed, form the centre of the patch, the periphery being occupied by numerous sterile threads, which grow out as long paraphyses ; it may so happen tliat the wiiole cushion consists only of
RM2AFTBHT–. Skogsvårdsföreningens tidskrift. inga bestämda uppgifter om dylika angrepp.Enstaka av Melampsora pinitorqua dödade årsplantor av tall ha docksomrarna 191 2 och 1916 av förf. anträffats i skogsvårdsstyrelsens i Skara-borgs län plantskola vid Mariestad (jmf. fig. 4). De dödade plantornasantal var i varje fall ytterst ringa, endast en obetydlig bråkdel av en /^j. En något mera omfattande och mera i ögonen fallande skadegörelsesynes svampen åstadkomma på andraårsplantorna i våra plantskolor. Ävendetta svampens uppträdande har dock i allmänhet förbisetts i den svenskaskogslitteraturen; snart sagt
RMPF9FTK–. Deutsche Flora. Pharmaceutisch-medicinische Botanik. Ein Grundriss der systematischen Botanik zum Selbststudium für Aerzte, Apotheker und Botaniker. Plants; Medicinal plants. Sterigmatomycetes 87 Melampsora Gast. Gonidien, Dauer,lonklien, einfach, gestreckt-kegelförmig oder keulenförmig, dunkelbraun, glatt, neben Saftfäden, zu einem flachen, von der Oberhaut der Nälirpfl, bedeckten , erst wenn diese ab- gestorben, völlig entwickelten, anfangs gelben, später braunen, kl-ustenförmigeu Lager versclnuolzeu; am Scheitel oder am Grunde im folgenden Frühlinge einen pfriemenf()rmigen auf 4
RMBCRFPM–Willow rust Melampsora spp pustules on Salix sp leaf underside
RMBGA61E–Euphorbia rust (Melampsora euphorbiae) pustules on ornamental Euphorbia dulcis leaves
RMBRB507–Euphorbia rust (Melampsora euphorbiae) pustules on ornamental Euphorbia dulcis leaves
RM2BD27P6–Poplar rust (Melampsora spp) fungal disease pustules on the underside of a white poplar (Populus alba) leaf
RMRYR4CY–Dr L Rabenhorst's Kryptogamen-Flora von Dr. L. Rabenhorst's Kryptogamen-Flora von Deutschland, Oesterreich und der Schweiz . drlrabenhorstskr0101rabe Year: 1884 Ch'onaHinm. Tt4eutosporeii ein- zellig, zu verticalen, nichtgallertar- tigen Säulehen verbunden. Fig. 1. Cronartium asclepia- deum. Teleutosporenlager von den Uredosporen am Grrunde umgeben ; (nach Tulasne). Melampsora. Teleutosporen einzellig; oder mehrzellig und dann die Zellen meist neben-, selten übereinander stehend. Uredosporen einzeln an den Basidien entstehend. Teleutosporenlager compact, horizontal ausgebreitet. Fig. 1, 2. Me
RM2CDCAKT–. Fungous diseases of plants, with chapters on physiology, culture methods and technique . Fig. 214. Melampsora trea/c/^.-e : Uredospores AND TeLEUTOSPORES 438 FUNGOUS DISEASES OF PLANTS three forms, together with one discussed by Klebahn as Melamp-sora Rostriipii Wagn., all agree in having more or less sphericaluredospores, and in no case are there marked morphological dif-ferences in the uredospores or teleutospores within this group. Thecaeoma stages have, however, been determined, for these forms, tooccur respectively upon Pinus, Larix, Chelidonium and Corydalis,and Mercurialis. For our pu
RMT3Y0BT–Archive image from page 214 of Die Pilze Böhmens (1908). Die Pilze Böhmens diepilzebhmens00bubuoft Year: 1908 211 8. Melampsorella Schroeter. Teleutosporen in deu Epidermiszelleu, mit düuner, hyaliner Membran, ein- zellig oder selten geteilt; Uredosporen mit Pseudoperidie oder nur mit Parafysen. Aecidien mit typischer Pseudoperidie. 29Ö. Ulelauipgorella Caryophyllaceanim (De CaudoUe). Schroeter. — Melampsorella Gera- st i i (Persoon) Schroeter. — Melampsora Ge- ra s t i i Winter. Spermogonien auf der Oberseite der Na- deln, honiggelb. Aecidien (Aecidium elatinum Albertini et Schweiuitz) auf
RM2CDCAN0–. Fungous diseases of plants, with chapters on physiology, culture methods and technique . Fig. 213. CoLEospoRiuM Senecionis[b after Tulasne) XXVIII. RUST OF POPLAR Melampsora tremulce Tul. Tulasne applied the above name to a rust of the poplar {Popuhistremidd) occurring throughout a considerable range in Europe.It would seemthat this namewould now in-clude at leastthree forms, orspecies, as dis-tinguished byKlebahn, viz.,Melampsora PinitorqnaRostr., Mel amp so 7aLarici-tremiLlce Kleb.,and Melampsora Mag-mcsiana Wagn. These. Fig. 214. Melampsora trea/c/^.-e : Uredospores AND TeLEUTOSPORES 438
RMMCR8R7–. Abb. 49. Melampsora Ayni/;,dnli>ia<: 1. Claeo- ma und Spermogonien auf Salix amygda- lina. ⢠'. J'Letten von C/ieomasporen, Para- lysen und vergrösserte Sporen. 3. Stark vergrösserte Caeomasporen. 4. Uredospo- ren. 5. Schnitt durch ein Teleutosporen- lager. (5. Eine Partie deäselben stark ver- giösseit. (Nach Klebabn.^
RMT3XDYY–Archive image from page 201 of Die Pilze Böhmens (1908). Die Pilze Böhmens diepilzebhmens00bubuoft Year: 1908 198 Teleutosporeulager subepiderraal, blatbeiderseits, — l mm breit, dicht gruppiert und oft zusamraenfliessend; Sporen prismatisch, seltener keulen- förmig oder unregehniissig. beiderseits abgerundet oder am Scheitel vorgezogen, 20—50 ulaug, 7—14 .« breit; Membran hellbraun, nicht verdickt, ohne deutlichen Keimporus (nach Klebahn). Caeoma auf Larix europaea: Aus Böhmen sah ich sie noch nicht. Abb. 51. Melampsora Lai-id-epitea. 1. Caeomasporen. 2., 3. Uredosporen und Para- fyseu.
RM2CDD978–. The rusts of Australia, their structure, nature, and classification . G H. Robinson, Phot. Nat. size & X 250. PHRAGMIDIUM AND MELAMPSORA. ROSACEAE AND LINACEAE. 294 Explanation of Plates. PLATE XXVII. AECIDIUM.Fie-2^-. Voung seedling of Platylobiutn for mo sum, with Aecidium -platylobii on le and leaf stalks ... ... ... ••• ?•• ... nat. size 2-jS. Fruiting branch of the same, with aecidial cups on the pods ... nat. size 239. Section through cups of Aecidium eburneum on pod of Bossiaea hetero- fhylla ... ... ?? ••• •?• •?• ••• > 240. Section of aecidial cup of Fuccinia erechtitis on Erecht
RMMCK6H3–. MELAMPSORA. 367 The patches of Cacoma laricis Hartig,^ appear as golden-yellow cushions on the underside of the needles, The sporophores from which the aecidiospores are abjointed, form the centre of the patch, the periphery being occupied by numerous sterile threads, which grow out as long paraphyses; it may so happen that the whole cushion consists only of these last. The formation of Caeoma- patches is preceded by that of little pycnidia (spermogonia), which break out from under the cuticle. The mycelium lives intercellularly, and dies after the shedding of the Caeoma- spores. Melampsora
RM2CDDAXP–. The rusts of Australia, their structure, nature, and classification . SET r^V^r^ MANGEL RUST. ?$& Explanation of Plates. PLATE I. (All Figures nat. size.) MELAMPSORA LINI ON NATIVE FLAX (Linum ma*ginale).Fig. 36. Uredo and teleutosori on stem. PHRAGMIDIUM SUBCORTIC1UM on SWEET-BRIER (Rosa rubiginosa). 37. Aecidia (Caeomata) showing large swollen patches on stems and small patches on lower surface of leaves. PHRAGMIDIUM BARNARDI ON NATIVE RASPBERRY (Rubus parvifolius). 38. Ochraceous uredosori on lower surface of leaves and flower-stalks, powdery teleutosori accompanying uredosori. PLATE I..
RMMCK63T–. MELAMPSORA. 367 The patches of Caeoma laricis Hartig,^ appear as golden-yellow cushions on the underside of the needles. The sporophores from which the aecidiospores are abjointed, form the centre of the patch, the periphery being occupied by numerous sterile threads, which grow out as long paraphyses ; it may so happen that the whole cushion consists only of these last. The formation of Cacoma- patches is preceded by that of little pycnidia (spermogonia), which break out from under the cuticle. The mycelium lives intercellularly, and dies after the shedding of the Caeoma- spores. Melampsora
RMRE1NCW–. A text-book of elementary botany. Botany. SYSTEMATIC BOTANY. 97. Fm. 123. Uromyces and Melampsora), two-celled (as in Puccinia. or Rusts, Fig. 123, and Gymnosporangium, the so-called Cedar apples,. 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.. Kellerman, William Ashbrook, 1850-1908. Philadelphia, Eldredge & Brother
RMMCK9PT–. Fig. 196. — Bactsrial blight of walnuts. After R. E. Smith. Two treatments with Bordeaux mixture, after thorough removal of diseased parts, have been known to prevent 50 per cent of the loss.x The second spraying should be given when the nuts are firmly set. Care should be taken to select resistant trees for propagation. WILLOW Tar spot (Rhytismose). See maple. Rust (Melampsora saliciscaprce (Pers.) Wint.). — Of tree rusts this is one of the most abundant, occurring as 1 U.S. Dept. Agr. Yearbook, p. 98, 1904.
RMRE5G0D–. Cryptogamic plants of the USSR. (Flora sporovykh rastenii SSSR). Plants. 383 of the fungus Melampsora euphorbiae Cast, determined by the habitat of the host plant (Saratov, Odessa, Tambov, and Moscow regions). In some cases the fungi collected from a single host may be referred — according to the size of teliospores and other morphological features — to almost any species of Melsmipsora on Euphorbia. Miiller, Klebahn, Jacky, and others concluded that the biological specialization does not justify the establishment of independent species. The morphological differences mentioned, in conjunctio
RMMCKAK0–. Fig. 196. — Bacterial blight of walnuts. After R. E. Smith. Two treatments with Bordeaux mixture, after thorough removal of diseased parts, have been known to prevent 50 per cent of the loss. ^ The second spraying should be given when the nuts are firmly set. Care should be taken to select resistant trees for propagation. WILLOW Tar spot (Rhytismose). See maple. Rust {Melampsora saliciscaprm (Pers.) Wint.). — Of tree rusts this is one of the most abundant, occurring as > U.S. Dept. Agr. Yearbook, p. 98, 1904.
RMRDD7KX–. Diseases of plants induced by cryptogamic parasites : introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae . Plant diseases; Parasitic plants; Fungi. MELAMPSORA. 367 The patches of Caeoma laricis Hartig.^ appear as golden-yellow cushions on the underside of the needles. The sporophores from which the aecidiospores are abjointed, form the centre of the patch, the periphery being occupied by numerous sterUe threads, which grow out as long paraphyses; it may so happen that the whole cushion consists only of these last. The formation of Gaeoma- patches is preceded by
RMMCKC9H–. Fig. ()Z.—Melampsora pinito?-qua. i, top of young pine attacked by the aecidium stage; 2, two chains of aecidiospores ; 3, aspen leaf with sori of teleutospores ; 4, section of cushion of teleutospores, still covered by the epidermis. Figs, i and 3 nat. size ; remainder mag. as the fungus appears year after year if damp weather prevails in May and June; this indicates that the fungus is peren- nial in the tissues of the host. In the seed-bed or young plantation the disease usually spreads from a centre, due to infection by wind-borne spores, showing that the aecidiospore stage is capable of
RMRH1GKD–. The British rust fungi (Uredinales) their biology and classification. Rust fungi -- Great Britain. MELAMPSORA :;:>:! l>v looking in spring on fallen leaves of /'. tremula, /'. alba, at places where Mercurialis is found to be affected. The caeoma on the latter is very capricious in its occurrence ; in some years it may be found almost every- where, in other years hardly a specimen can be met with. The large yellow spots show conspicuously on the upper surface of the leaves, so that when it does occur it is impossible to overlook it. There are two places near Birmingham where all the spo
RMMAAH42–. Dr. L. Rabenhorst's Kryptogamen-Flora von Deutschland, Oesterreich und der Schweiz . Ch'onaHinm. Tt4eutosporeii ein- zellig, zu verticalen, nichtgallertar- tigen Säulehen verbunden. Fig. 1. Cronartium asclepia- deum. Teleutosporenlager von den Uredosporen am Grrunde umgeben ; (nach Tulasne). Melampsora. Teleutosporen einzellig; oder mehrzellig und dann die Zellen meist neben-, selten übereinander stehend. Uredosporen einzeln an den Basidien entstehend. Teleutosporenlager compact, horizontal ausgebreitet. Fig. 1, 2. Me- lampsora betulina. Fig. 1. Theil eines Uredosporen- lagers, von der Perid
RMRH2Y00–. The British rust fungi (Uredinales), their biology and classification. Uredineae. 58 MELAMPSORA PINITORQUA point, combined with this lateral curvature, causes S-shaped distortions which have given rise to the name " Pine Branch Twist" for the disease (Fig. 35). It is suggested by Massee that the aecidiospores can repro- duce the ascidia and thus propagate the parasite on the Pine without reference to the alternate host, but no proof is given of this statement. The mycelium is almost certainly perennial in the affected branch, and thus fresh outbreaks arise year by year more or less
RMMCR8PK–. Abb. 51. Melampsora Lai-id-epitea. 1. Caeomasporen. 2., 3. Uredosporen und Para- fyseu. ö. Schnitt durch ein Teleutosporenlager. 5. Vergrösserte Teleutosporen. (Nach Klebahn). üredo- und Teleutosporen auf verschiedenen Salix-Arten und zwar: S aurita, cinerea, viminalis, hypophaifolia, Capraea, acutifolia, daphnoides, aurita X viminalis, pur purea X viminalis, dasyclados, Smithiana, retusa, herbacea, reticulata, serpyllifolia, nigricans, glabra, arbuscula, fragilis, purpurea, grandifolia. Aus Böhmen mit Sicherheit bisher nur auf Salix viminalis: Turnau (Kabät)! Zdär bei Polic a M.I Salix Capr
RMRMWFG0–. Annales des Sciences Naturelles Botaniques. n des . G '/c/n •? na£ 4. * Se/ vc Bot- Tom* •- PL // '^, T... Loleosporium Sonchi z». ^-^ ('. Tussil.iu-inis £«,. 10-22 Melampsora betulina A RânortûL imp. r. des Xût/crs. o't /bru. 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.. Paris
RMMCR7FY–. Fig. 100. (B. 708.) a Weisstannenzweig, dessen Nadeln auf der Unterseite zwei Reihen Aecidien der Calypto- spora Goeppertiana (Aecidhun columnare) entwickeln, b die Aecidien vergrössert. (Nach Hartig). Gattung 7. Melampsora Castagne. Ihre Repräsentanten schädigen als »Rost« gewisse Laubbäume (Weiden, Pappeln, Birke, Hainbuche, Sorbns7ix.zx, Prunus Fadus), unsere Lein arten, manche Vaccinium-, Pirola-, Epilobium-yCircaea- und Ga/ium-Axten. Von Frucht- formen sind beobachtet: Spermogonien, welche kleine, rundliche, flache l,ager bilden, ebenfalls lagerförmige Aecidie n (früher als C(^^(?;;iö
RMRMWFGM–. Annales des Sciences Naturelles Botaniques. gp f. ùasrie ,/<?/. ? - i , ./ 7%omas i-B Cystopus Portnlacae /«?. ^'-- Melampsora salicina Léo. i-g Melauipsora betulina -Permoïc 10 M.populina£&. // Coleosporium lîlimaiilhacearum /, W» RëmontL unp r a&r Noyers Se Paris.. 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.. Paris
RMMCNAYR–. V V V V V V V ' " V - = ' y V — V V V V V = = y == = V = = y = ^ V = = = = V V V V =^ = = Gymnosporangiuin Sub'mae nnd clavariaeformc oder juniperhium. Melampsora Larici-Ca- praearuui und AIUi-Fragilis. Gyuinosporaiiyiuiii, coiifusmii und clavariaeformc. (Melamp)sora Larici-Capruearum und Larici- Fentdudrae). (Mela))ipsorn Larici-epitea und Ribesii-Vhni- nalis.) Puccinia coronuta Holci und coronifcra Loiii. Puccinia Pringsheimiaiia und Urticae-Caricis hirtite. Melampsora R.ibesü-Viminalls und Ribesii- Furpureae. Melampsora All'd-populina und AUii-Fragllis. Pucclniastruni Epil
RMRE388J–. The British rust fungi (Uredinales) their biology and classification. Rust fungi. 58 MELAMPSORA PINITORQUA point, combined with this lateral curvature, causes S-shaped distortions which have given rise to the name " Pine Branch Twist" for the disease (Fig. 35). It is suggested by Massee that the secidiospores can repro- duce the sec.idia and thus propagate the parasite on the Pine without reference to the alternate host, but no proof is given of this statement. The mycelium is almost certainly perennial in the affected branch, and thus fresh outbreaks arise year by year more or les
RMMCR8NJ–. Abb. 57. Melampsora Lai-ici-populina. 1. Caeomasporen. 2, 3. Uredosporen und ihre Parafyseu. 4. Schnitt durch ein Teleuto- spoienlager. 5. VAne Partie desselben stark vergfiissert. (Xach Klebabn.) Caeoma auf Larix europaea: Aus Böhmen sah ich iliese Sporenforui nocli nicht. Uredo- und Teleutosporen auf Populus nigra: Welwaru (Kabät)! Stefausüberfuhr bei M&lnlk! Hoch Veseli (Kabät)! Pardubic (Vodäk)! Kuttenberg! Populus balsamifera: Hucli Veseli (Kabät)! Neuwelt im Isergebirge ! Ober Mohren bei Polic a. MI Populus pyramidalis: Täbor! Chynovl Diese Art kommt auch auf Populus canadensis ror
RMRE1NCK–. A text-book of elementary botany. Botany. Fm. 123. Uromyces and Melampsora), two-celled (as in Puccinia. or Rusts, Fig. 123, and Gymnosporangium, the so-called Cedar apples,. Fig. 124. Fig. 124), or many-celled (as in Phragmidiuvi). They rupture the epidermis and thus become exposed, but generally remain r I. 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.. Kellerman, William Ashbrook, 1850-1908. Philadelphia, Eldredge &am
RMMCR8R6–. Alib. 50. Melampsora Allü-fragilh. 1. Caeomaspoieu von Allium. 2. Uredosporen. 3. Parafysen. 4. Schnitt durch ein Teleutosporenlager (Nach Klebahnj. Salix fragilis: Michle bei Prag (Opiz)! Sadskä! Rozdalovic! Yazovec bei Turnau (Kabdt)! Rovensko! Bofkov bei Semil! Langenau bei Hohenelbe! Pustä Rybuä bei Policka (Noväk)! Siehe die Bemerkungen bei der vorangehenden und nächstfolgenden Ait. Der genetische Zusammenhang wurde von Klebahn festgestellt. 27t'). Melampsora Galanthi-Fragilis Klebahn. S p e r ni 0 go n i e n flach, wenig hervorragend, 80—100 a hoch, 13o bis 160 u breit. Caeomalager bla
RMRE1GH2–. Fungi; their nature, influence, and uses;. Fungi. Fig. 82.—Germinating pseudospores of Fio. 83.—Germinating pseudosporc (i) of (b) CoLtoxporiitm Sonchi/ {s s) secondary JHelampsora betutina (Tvlasne), spores, or sporules (Tiilasne). filament which remains simple and uniform, but more commonly it forms at its extremity a second sporule. If this does not become isolated, to play an independent life, the filament is continued, and new vesicles are repeated many times. In Melampsora the summer spores are of the Leci/tlien type, and were included in that genus till their relation with Melamp- sor
RMRDHT27–. Fungi; their nature and uses. Fungi. Fig. 58.— Pseudospores of Thecaphora hyalina. Fio. 59.—Pseudospores of Puccinia. Fig. 60.—Pseudospores of Triphragmium. In the Puccinicsi the distinctive features of the genera are based upon the more or less complex nature of the pseudospores, which. Fio. 61.—Pseudospores of Phragmidium bulbosum. Fig. 62.—Melampsora salicina. (Winter fruit.) are bilocular in Puccinia, trilocular in Triphragmium, multilocular in Phragmidium, &c. In the curious genus Podisoma the septate. Please note that these images are extracted from scanned page images that may hav
RMRDD7M1–. Diseases of plants induced by cryptogamic parasites : introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae . Plant diseases; Parasitic plants; Fungi. 366 UREDINEAE. in shape, yellow in colour, and their outer coat is beset with spiny projections. The stalk-cells grow out into elongated tubes, after completion of spore-formation. In the vieiuity of the scar of a Caeoma-patch, the twig turns brown and its tissues become permeated with resin, while the tissues underlying the patch die even into the pith. Hartig's ^ investigations show that this same Melampsora cause
RMRDX0MX–. Fungi, ascomycetes, ustilaginales, uredinales. Fungi. Fig. 173. Phragmidiam violaceiim Wint.; migration of second nucleus into fertile cell of caeotna, x 950; after Blackman.. Fig. 174. Melampsora Rostrupi'^3.^-a. paired fertile cells, x 1200; after Blackman and Fraser.. 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.. Gwynne-Vaughan, Helen Charlotte Isabella (Fraser) Dame, 1879-. Cambridge [Eng] University Press
RMRE2G38–. The British rust fungi (Uredinales) their biology and classification. Rust fungi. MELAMPSORA 353 by looking in spring on fallen leaves of P. tremida, P. alba, at places where Mercurialis is found to be aflfected. The cseoma on the latter is very capricious in its occurrence ; in some years it may be found almost every- where, in other years hardly a specimen can be met with. The large yellow spots show conspicuously on the upper surface of the leaves, so that when it does occur it is impossible to overlook it. There are two places near Birmingham where all the spore-forms occur year after ye
RMRDHRX7–. Fungi; their nature and uses. Fungi. Fig. 82.—Germinating pseudospores of (6) Coleosporium Sonchi; (a s) secondary spores, or sporules (Tulasne). Fig. 83.—Germinating pseudospore (b) of Melampsora betulina (Tulasne). filament which remains simple and uniform, but more commonly it forms at its extremity a second sporule. If this does not become isolated, to play an independent life, the filament is continued, and new vesicles are repeated many times. In Melampsora the summer spores are of the Lecytliea type, and were included in that genus till their relation with Melamp- sora was clearly mad
RMRDDX0G–. Diseases of plants induced by cryptogamic parasites : introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae . Plant diseases; Parasitic plants; Fungi. 10 THE PARASITIC FUNGI. others, like Podosphaera castagnei, they take the form of broadened closely-clinging hyphae with haustoria. Frank describes a swell- ing of the germ-tube of Fuskladium tremulae just before the infecting hypha pierces the' cell-walls of its host. A similar- phenomenon can be observed in Polystigma rubrum, in Gnomonia erythrostoma, and in the germinating aecidiospores of Melampsora Goeppertiana
RMRE5G1Y–. Cryptogamic plants of the USSR. (Flora sporovykh rastenii SSSR). Plants. weak experimental infection of leaves of S. alba were repeatedly reported. The identity of the fungus on leaves and cortex was proved by Klebahn (I.e.).. FIGURE 136. Melampsora allii- salicis-albae Kleb. on Salix albaL. Urediospores, -' 600.(Grig.). 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.. Botanicheskii institut im. V. L. Komarova. Jerusalem [
RMRE5FYN–. Cryptogamic plants of the USSR. (Flora sporovykh rastenii SSSR). Plants. Telia lenticular, starting under the epidermis, soon erumpent and sprouting, acquiring an ash-gray color. Teliospores single-celled, cylindroid, in one layer, colorless, with thin, smooth walls. Distinguished from Melampsora by the colorless teliospores and by germination immediately upon maturation; very close to Melampsora, Chnoopsora, and Melampsoridium. Two species are known, one in North America, the other in the USSR and China. On Lonicera (Caprifoliaceae) 1. Aplospora lonicerae Tranz., Tranzschel, Consp. Ured. UR
RMREGF3J–. Dr. L. Rabenhorst's Kryptogamen-Flora von Deutschland, Oesterreich und der Schweiz. Cryptogams -- Germany; Cryptogams -- Austria; Cryptogams -- Switzerland. 138. Ch'onaHinm. Tt4eutosporeii ein- zellig, zu verticalen, nichtgallertar- tigen Säulehen verbunden. Fig. 1. Cronartium asclepia- deum. Teleutosporenlager von den Uredosporen am Grrunde umgeben ; (nach Tulasne). Melampsora. Teleutosporen einzellig; oder mehrzellig und dann die Zellen meist neben-, selten übereinander stehend. Uredosporen einzeln an den Basidien entstehend. Teleutosporenlager compact, horizontal ausgebreitet. Fig. 1, 2.
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