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Peridermium Stock Photos and Images
RFT60HEN–A picture showing the Stem of Young Pine Attached by Peridermium Pini. Peridermium pini is a fungus that almost always grows in young trees of twenty
RM2AN2GX8–Annual report of the Board of Control of the New York Agricultural Experiment Station . unk near theground. A portion of the trunk, extending from the surface of thesoil to a height of about seven inches, was thickly covered overabout two-thirds of its circumference with conspicuous yellow aeciaof Peridermium strobi. The trunk at this point was but slightly,if at all, enlarged. Tree No. 2 stood about 120 feet from Tree No. 1. It was bushyand much distorted. Over a portion of the tree the needles weremuch browned. About 16 inches above the ground the trunk dividedinto throe branches. Here was t
RMPG44GG–. A text-book of mycology and plant pathology . Plant diseases; Fungi in agriculture; Plant diseases; Fungi. 394 GENERAL PLANT PATHOLOGY fibrovascular system of the cedar leaf (Fig. i6i). From, or near the base of the cedar apple, where the vascular elements are much con- torted, arise many branches, which extend radially almost to the cortex. Harshberger* has investigated the galls produced by two species of Gymnosporangium on the coastal white cedar, Chanuecyparis thyoides, and Stewart^ has published an account of the anatomy of Gymnosporangium galls and Peridermium gaUs. There may be an ove
RMT1JGPT–Diseases of plants induced by Diseases of plants induced by cryptogamic parasites; introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae diseasesofplant00tube Year: 1897 PERIDERMIUM. 4ir The soft hypertrophied shoots are eaten. They occur chiefly in Scandinavia, but recently were observed by Gobi and Tranzschel in the neio-hbourhood of St. Petersburo. Fig. 252.—Accidiuiii coruscans on malformed shoots of Spruce. The compact abnormal shoots thickly covered with white aecidia contrast strongly with the normal portions, (v. Tubeitf phot, from material presented by Pro
RMMCKC9P–. Fig. 96.—Cronartium ribicohint. i, uredo and teleuto- spore stages on leaf of black currant; 2, uredospores, (Z, and teleutospores, b, cemented together in a column ; 3, uredospore ; 4, teleutospores, two of which are germi- nating ; 5, aecidia on bark of Weymouth pine; 6, aecidiospores. Figs, i and 5 nat. size, remainder highly mag. aggregated into a column which springs from the sorus of uredospores. Weymouth pine rust {Cronartium ribicolum, Deitr. = Peridermium sirobi, Kleb.).—The aecidium stage of this
RM2AJ50DD–Fungous diseases of plants . Fig. 212. Peridermium on Piine. (After Hartic PROTOBASIDIOMYCETES 437 tongue-shaped bodies .5-./ mm. high, opening by an irregular rup-ture of the peridium. The spores are, according to Arthur, coarsely verrucose with deciduous tuber-cles, except along one narrowline, where tubercles fail. The uredospores are producedin orange-yellow sori, which soonfade to nearly white. They aregenerally ellipsoidal, measuring27-30 X 17-22/x. The teleuto-spores are borne in crowdedwaxy masses, and are at maturitya chain of four basidial cells withina somewhat gelatinized commonwal
![. Timber and some of its diseases. Timber; Trees. XII.] PINE-BLISTER. 259 corticold). It is thus seen that the fungus Peri- dermium Pint was regarded as a parasite of pines, and that it possessed at least two varieties, one in- habiting the leaves and the other the cortex: the " varieties" were so considered, because certain differences were found in the minute structure of the. Fig. 39.—Vertical section through a very young Alcidhim of Peridermium Pint (var. acicola), with part of the subjacent tissue of the leaf, h, the mycelium of the parasitic fungus running between the cells of Stock Photo](https://c8.alamy.com/comp/PFXCNR/timber-and-some-of-its-diseases-timber-trees-xii-pine-blister-259-corticold-it-is-thus-seen-that-the-fungus-peri-dermium-pint-was-regarded-as-a-parasite-of-pines-and-that-it-possessed-at-least-two-varieties-one-in-habiting-the-leaves-and-the-other-the-cortex-the-quot-varietiesquot-were-so-considered-because-certain-differences-were-found-in-the-minute-structure-of-the-fig-39vertical-section-through-a-very-young-alcidhim-of-peridermium-pint-var-acicola-with-part-of-the-subjacent-tissue-of-the-leaf-h-the-mycelium-of-the-parasitic-fungus-running-between-the-cells-of-PFXCNR.jpg ". Timber and some of its diseases. Timber; Trees. XII.] PINE-BLISTER. 259 corticold). It is thus seen that the fungus Peri- dermium Pint was regarded as a parasite of pines, and that it possessed at least two varieties, one in- habiting the leaves and the other the cortex: the " varieties" were so considered, because certain differences were found in the minute structure of the. Fig. 39.—Vertical section through a very young Alcidhim of Peridermium Pint (var. acicola), with part of the subjacent tissue of the leaf, h, the mycelium of the parasitic fungus running between the cells of Stock Photo")
RMPFXCNR–. Timber and some of its diseases. Timber; Trees. XII.] PINE-BLISTER. 259 corticold). It is thus seen that the fungus Peri- dermium Pint was regarded as a parasite of pines, and that it possessed at least two varieties, one in- habiting the leaves and the other the cortex: the " varieties" were so considered, because certain differences were found in the minute structure of the. Fig. 39.—Vertical section through a very young Alcidhim of Peridermium Pint (var. acicola), with part of the subjacent tissue of the leaf, h, the mycelium of the parasitic fungus running between the cells of
RMT1HWP9–Diseases of economic plants (1921) Diseases of economic plants diseasesofeconom01stev Year: 1921 400 Diseases of Economic Plants Rust (Cronartium cerebrum (Pk.) H. & L., Peridermium). — Swollen areas occur upon the branches and young stems which are gradually killed. The gall-like growth sheds a Fig. 212. Gall produced by Cronartium (Perider- mium) cerebrum on pine. After Hedgcock. profusion of orange-colored spores each spring. Chiefly by its interference with the sap current the swellings bring about the death of many trees. The galls are perennial and may
RMMCKC9M–. Fig. 97. — Peridcrmiuin Ha?-ki!essi. i, young stem of Pin us ponderosus, three years old, showing the Peridermium, two- thirds nat. size ; 2, appearance of a stem, eight years old, attaclced by the fungus, the swollen portion being studded with aecidia, two-thirds nat. size ; 3, section through Fig. 2, showing the thickening of the annual rings of wood caused by the presence of the fungus. closed and triquetrous, at length opening at the apex, orange- rosy ; spores subglobose or broadly elliptical, orange, verruculose, 15-18 X 10-12 /x. Peridermium conorum, Thiim. { — Aecidium conorum-piceae
RM2AX0MMG–Dansk forstzoologi . Insekter. omtrent tommetyk Stammedel af en sygelig Weymouthsfyr, paa hvilken dens Exkrementer i Mængde traadte frem paa Barken (Fig. 170), og Borries omtaler ligeledes, at den æder Gange »i Basten paa Stamme og Grene af Bjærgfyr og Østerrigsk Fyr« samt i Weymouthsfyr angrebne af Peridermium pini. Om Efteraaret forlader Larven den Plantedel, i hvilken den har levet, og overvintrer i en Cocon, der er blandet med Jorddele osv., for næste Foraar at forpuppe sig og nogen Tid efter at komme frem som fuldkomment Insekt. Nogle Individer overvintrer dogpaa Planten i halvvoksen Tils
![. The fungi which cause plant disease . Plant diseases; Fungi. THE FUNGI WHICH CAUSE PLANT DISEASE 333 phologically inseparable as are also their secia when grown upon their common host. An excellent example of such biologic specialization is offered in the common pine Peridermium. iEcia may be produced upon the pine by sowing of Coleosporium teliospores from Senecio, Campanula, Pulsatilla, etc., but the seciospores which develop on the pine are capable of in- fecting only those species of hosts from which the teho- spores were taken. Similarly Eriksson "* has de- termined that though rus Stock Photo](https://c8.alamy.com/comp/PG4633/the-fungi-which-cause-plant-disease-plant-diseases-fungi-the-fungi-which-cause-plant-disease-333-phologically-inseparable-as-are-also-their-secia-when-grown-upon-their-common-host-an-excellent-example-of-such-biologic-specialization-is-offered-in-the-common-pine-peridermium-iecia-may-be-produced-upon-the-pine-by-sowing-of-coleosporium-teliospores-from-senecio-campanula-pulsatilla-etc-but-the-seciospores-which-develop-on-the-pine-are-capable-of-in-fecting-only-those-species-of-hosts-from-which-the-teho-spores-were-taken-similarly-eriksson-quot-has-de-termined-that-though-rus-PG4633.jpg ". The fungi which cause plant disease . Plant diseases; Fungi. THE FUNGI WHICH CAUSE PLANT DISEASE 333 phologically inseparable as are also their secia when grown upon their common host. An excellent example of such biologic specialization is offered in the common pine Peridermium. iEcia may be produced upon the pine by sowing of Coleosporium teliospores from Senecio, Campanula, Pulsatilla, etc., but the seciospores which develop on the pine are capable of in- fecting only those species of hosts from which the teho- spores were taken. Similarly Eriksson "* has de- termined that though rus Stock Photo")
RMPG4633–. The fungi which cause plant disease . Plant diseases; Fungi. THE FUNGI WHICH CAUSE PLANT DISEASE 333 phologically inseparable as are also their secia when grown upon their common host. An excellent example of such biologic specialization is offered in the common pine Peridermium. iEcia may be produced upon the pine by sowing of Coleosporium teliospores from Senecio, Campanula, Pulsatilla, etc., but the seciospores which develop on the pine are capable of in- fecting only those species of hosts from which the teho- spores were taken. Similarly Eriksson "* has de- termined that though rus
RMT1HX8X–Diseases of plants induced by Diseases of plants induced by cryptogamic parasites; introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae diseasesofplant00tube Year: 1897 PERIDERMIUM. 413 branch, the living jDortions of the ring grow on with increased vigour, and even attempt to close over the injured portion. This irregular growth, continued in many cases for years, pro- duces abnormal cross-sections (Fig. 248). The mycelium grows out centrifugally from diseased spots, so that the wounds continue to enlarge, and the disease becomes easily noticeable on account of the
![. Fl(i. "249.—Pii-kkrmium gigantcum on P'uiux Thunhc-gd from Japan, (v. Tubeuf phot.—the specimen presented by Prof. Grasmann of Tokio.) P. brevius Barcl. On Pinus exeelsa in India. P. complanatum Barcl. On Pinus longifolia in India: on rind as well as needles. B. On the rind or bark: Peridermium Cornui Rostr. et Kiel), (now Vronartium asclepiadeum, p. 381). On Pinus si/lvestris. P. strobi Kleb. (now Cro- nartiam ribicola, j). 382). On Pinus St rob us, P. La mberiia na, (and P. Cembra). P. pini(Yind.). On Pinus sylvestris. (Britain and U.S. America.) P. orientale Cooke. On Pinus rigida a Stock Photo](https://c8.alamy.com/comp/MCK6CK/fli-quot249pii-kkrmium-gigantcum-on-puiux-thunhc-gd-from-japan-v-tubeuf-photthe-specimen-presented-by-prof-grasmann-of-tokio-p-brevius-barcl-on-pinus-exeelsa-in-india-p-complanatum-barcl-on-pinus-longifolia-in-india-on-rind-as-well-as-needles-b-on-the-rind-or-bark-peridermium-cornui-rostr-et-kiel-now-vronartium-asclepiadeum-p-381-on-pinus-silvestris-p-strobi-kleb-now-cro-nartiam-ribicola-j-382-on-pinus-st-rob-us-p-la-mberiia-na-and-p-cembra-p-piniyind-on-pinus-sylvestris-britain-and-us-america-p-orientale-cooke-on-pinus-rigida-a-MCK6CK.jpg ". Fl(i. "249.—Pii-kkrmium gigantcum on P'uiux Thunhc-gd from Japan, (v. Tubeuf phot.—the specimen presented by Prof. Grasmann of Tokio.) P. brevius Barcl. On Pinus exeelsa in India. P. complanatum Barcl. On Pinus longifolia in India: on rind as well as needles. B. On the rind or bark: Peridermium Cornui Rostr. et Kiel), (now Vronartium asclepiadeum, p. 381). On Pinus si/lvestris. P. strobi Kleb. (now Cro- nartiam ribicola, j). 382). On Pinus St rob us, P. La mberiia na, (and P. Cembra). P. pini(Yind.). On Pinus sylvestris. (Britain and U.S. America.) P. orientale Cooke. On Pinus rigida a Stock Photo")
RMMCK6CK–. Fl(i. "249.—Pii-kkrmium gigantcum on P'uiux Thunhc-gd from Japan, (v. Tubeuf phot.—the specimen presented by Prof. Grasmann of Tokio.) P. brevius Barcl. On Pinus exeelsa in India. P. complanatum Barcl. On Pinus longifolia in India: on rind as well as needles. B. On the rind or bark: Peridermium Cornui Rostr. et Kiel), (now Vronartium asclepiadeum, p. 381). On Pinus si/lvestris. P. strobi Kleb. (now Cro- nartiam ribicola, j). 382). On Pinus St rob us, P. La mberiia na, (and P. Cembra). P. pini(Yind.). On Pinus sylvestris. (Britain and U.S. America.) P. orientale Cooke. On Pinus rigida a
RM2ANBPT7–A text-book of mycology and plant pathology . on Alopecurus pratensis; (3) f. sp. festucce on Festucas; (4) f. sp.lolii on rye grass, Lolium perenne; (5) f. sp. glyceric^ on Glyceria aqua-tica; (6) f. sp. agropyri on Agropyron repens; (7) f. sp. epigm on Cala-magrostis epigeios; (8) f. sp. hold on Holcus lanatus. Crown Rust of Grasses, Puccinia coronaia, with its aecium on Rham-nus jrangula. Three special forms of this rust are known: (i) f. sp.calamagrostis on Calamagrostis arundinacea; (2) f. sp. phalaridis on 1 Arthqr, J. C. and Kern, F. D.: North American Species of Peridermium.Bull. Torr.
RMPG3NJP–. Fungous diseases of plants : with chapters on physiology, culture methods and technique . Fungi in agriculture. 436 FUNGOUS DISEASES OF PLANTS fo§doR88DQ. The genus Coleosporium is to be considered entirely heterce- cious, and whenever secidial stages are known in the life cycle, they occur on species of Pinus, and are referable to the form genus Peridermium. The aecidial stage of the species here discussed has recently been found through inoculation experiments to be a form known as Peridermium acicohnu occurring on leaves of Pinus rigida in several of the northeastern states. The Euro- pea
![Diseases of cultivated plants and Diseases of cultivated plants and trees diseasesofcultiv00massuoft Year: [1910?] PERIDERMIUM 323 Simla. The American forms referred to this species are quite distinct. Pseudoperidia solitary or scattered, large, for a long time jFm Fig. 97. — Peridcrmiuin Ha?-ki!essi. i, young stem of Pin us ponderosus, three years old, showing the Peridermium, two- thirds nat. size ; 2, appearance of a stem, eight years old, attaclced by the fungus, the swollen portion being studded with aecidia, two-thirds nat. size ; 3, section through Fig. 2, showing the thickening of Stock Photo](https://c8.alamy.com/comp/T1HRAK/diseases-of-cultivated-plants-and-diseases-of-cultivated-plants-and-trees-diseasesofcultiv00massuoft-year-1910-peridermium-323-simla-the-american-forms-referred-to-this-species-are-quite-distinct-pseudoperidia-solitary-or-scattered-large-for-a-long-time-jfm-fig-97-peridcrmiuin-ha-ki!essi-i-young-stem-of-pin-us-ponderosus-three-years-old-showing-the-peridermium-two-thirds-nat-size-2-appearance-of-a-stem-eight-years-old-attaclced-by-the-fungus-the-swollen-portion-being-studded-with-aecidia-two-thirds-nat-size-3-section-through-fig-2-showing-the-thickening-of-T1HRAK.jpg "Diseases of cultivated plants and Diseases of cultivated plants and trees diseasesofcultiv00massuoft Year: [1910?] PERIDERMIUM 323 Simla. The American forms referred to this species are quite distinct. Pseudoperidia solitary or scattered, large, for a long time jFm Fig. 97. — Peridcrmiuin Ha?-ki!essi. i, young stem of Pin us ponderosus, three years old, showing the Peridermium, two- thirds nat. size ; 2, appearance of a stem, eight years old, attaclced by the fungus, the swollen portion being studded with aecidia, two-thirds nat. size ; 3, section through Fig. 2, showing the thickening of Stock Photo")
RMT1HRAK–Diseases of cultivated plants and Diseases of cultivated plants and trees diseasesofcultiv00massuoft Year: [1910?] PERIDERMIUM 323 Simla. The American forms referred to this species are quite distinct. Pseudoperidia solitary or scattered, large, for a long time jFm Fig. 97. — Peridcrmiuin Ha?-ki!essi. i, young stem of Pin us ponderosus, three years old, showing the Peridermium, two- thirds nat. size ; 2, appearance of a stem, eight years old, attaclced by the fungus, the swollen portion being studded with aecidia, two-thirds nat. size ; 3, section through Fig. 2, showing the thickening of
RM2CDCAP2–. Fungous diseases of plants, with chapters on physiology, culture methods and technique . s,since the uredo stage is produced practically throughout the winteron leaves of the basal rosettes. The spermogonia appear upon the needles in autumn, but theaecidia are not developed until spring. They occur on both sur-faces of the leaves in slightly discolored spots. They are crumpent, Fig. 212. Peridermium on Pine. (After Hartig) PROTOBASIDIOMYCETES 437 tongue-shaped bodies .5-.7 mm. high, opening by an irregular rup-ture of the peridium. The spores are, according to Arthur, coarsely verrucose with
RMPG4ANM–. Diseases of plants induced by cryptogamic parasites : introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae . Plant diseases; Parasitic plants; Fungi. PERIDERMIUM. 417 The soft hypertrophied shoots are eaten. They occur chiefly in Scandinavia, but recently were observed by Gobi and Tranzschel in the neighbourhood of St. Petersburg.^. Fio. 252.—Aeddium coru^cans on malformed shoots of Spruce. The compact abnormal shoots thickly covered with white aecidia contrast strongly with the normal portions, (v. Tubeuf phot, from material presented by Prof. Fries, TJpsala.) P
RMT1JGKF–Diseases of plants induced by Diseases of plants induced by cryptogamic parasites; introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae diseasesofplant00tube Year: 1897 PERIDERMIUM. 415 P. filamentosum Peck. On Piiius ponderosa, also in America. P. Harknessii Moore. On Pinus ponderosa, P. itisignis, P. Sabineana, and /*. nontorta in California. Fl(i. '249.—Pii-kkrmium gigantcum on P'uiux Thunhc-gd from Japan, (v. Tubeuf phot.—the specimen presented by Prof. Grasmann of Tokio.) P. brevius Barcl. On Pinus exeelsa in India. P. complanatum Barcl. On Pinus longifolia i
RM2CPNYHM–. Annual report . We can further say that every effort will be made by usto prevent importations of pine. The disease is well under control and ouronly trouble will be to prevent nurserymen and private parties from im-porting. The accompanying colored plate shows the appearance of the diseaseand an explanation follows: Plate 1. A live, young white pine plant showing swelling of thetrunk and of the branches at the whorl, and on these swollen parts the yellowspore bags (Aecidia) of the Peridermium Strobi. Plate 2. Branch of the white pine showing the swelling caused by theblister rust. The entir
RMPG463R–. The fungi which cause plant disease . Plant diseases; Fungi. 330 THE FUNGI WHICH CAUSE PLANT DISEASE aecia are on pines (Peridermium), while the other stages are on dicotyledons. In the Gymnosporangiums the pycnial and secial stages are on Rosacese; the telial on Juniperus and its kin. While a few general rules can be worked out concerning host relations there are many exceptions and to know one stage of a heteroecious rust generally gives little or no clue to what its complementary host may be. The mycelium of the rusts is usually intercellular and local though in a few instances it is exte
RMT1HWRF–Diseases of economic plants (1921) Diseases of economic plants diseasesofeconom01stev Year: 1921 Trees and Timber 401 persist for many years. One stage of this rust occurs upon the oaks. Rust (Coleosporium solidaginis (Schw.) Thtim., Perider- mium). — Another species of Peridermium occurs upon leaves, producing small, sac-like, tubular outgrowths which contain the spores. Tliis is a stage of a rust which appears later in the season upon golden-rods and asters. Red-rot {Fomes pinicola Cke.). — Upon dead trees this rot begins just under the bark, usually near the tree top, often following blui
![. Timber and some of its diseases. Timber; Trees. XII.] PINE-BLISTER. 259 corticold). It is thus seen that the fungus Peri- dermium Pint was regarded as a parasite of pines, and that it possessed at least two varieties, one in- habiting the leaves and the other the cortex: the " varieties" were so considered, because certain differences were found in the minute structure of the. Fig. 39.—Vertical section through a very young Alcidhim of Peridermium Pint (var. acicola), with part of the subjacent tissue of the leaf, h, the mycelium of the parasitic fungus running between the cells of Stock Photo](https://c8.alamy.com/comp/RD8FNF/timber-and-some-of-its-diseases-timber-trees-xii-pine-blister-259-corticold-it-is-thus-seen-that-the-fungus-peri-dermium-pint-was-regarded-as-a-parasite-of-pines-and-that-it-possessed-at-least-two-varieties-one-in-habiting-the-leaves-and-the-other-the-cortex-the-quot-varietiesquot-were-so-considered-because-certain-differences-were-found-in-the-minute-structure-of-the-fig-39vertical-section-through-a-very-young-alcidhim-of-peridermium-pint-var-acicola-with-part-of-the-subjacent-tissue-of-the-leaf-h-the-mycelium-of-the-parasitic-fungus-running-between-the-cells-of-RD8FNF.jpg ". Timber and some of its diseases. Timber; Trees. XII.] PINE-BLISTER. 259 corticold). It is thus seen that the fungus Peri- dermium Pint was regarded as a parasite of pines, and that it possessed at least two varieties, one in- habiting the leaves and the other the cortex: the " varieties" were so considered, because certain differences were found in the minute structure of the. Fig. 39.—Vertical section through a very young Alcidhim of Peridermium Pint (var. acicola), with part of the subjacent tissue of the leaf, h, the mycelium of the parasitic fungus running between the cells of Stock Photo")
RMRD8FNF–. Timber and some of its diseases. Timber; Trees. XII.] PINE-BLISTER. 259 corticold). It is thus seen that the fungus Peri- dermium Pint was regarded as a parasite of pines, and that it possessed at least two varieties, one in- habiting the leaves and the other the cortex: the " varieties" were so considered, because certain differences were found in the minute structure of the. Fig. 39.—Vertical section through a very young Alcidhim of Peridermium Pint (var. acicola), with part of the subjacent tissue of the leaf, h, the mycelium of the parasitic fungus running between the cells of
RMPG4B0J–. Diseases of plants induced by cryptogamic parasites : introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae . Plant diseases; Parasitic plants; Fungi. Fig. 214.—Cronai'tium asclepiadeum oji Ct/nanch^m Vincetoxicum. The uredo- sori sliow as spots, the teleutospore-sori as processes on the leaves, (v. Tubeuf del) also on Gentiana asclepiadea). The aecidial stage, known as Peridermium Oornui Eostr. et Kleb. produces a blister-rust on the bark of Pinus sylvestris.. Fig. 215.—Ci-onartium asclepiadeum. Section of a Cynanchum leaf. The leaf-parenchyma is permeated with m
RMT1JGJ6–Diseases of plants induced by Diseases of plants induced by cryptogamic parasites; introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae diseasesofplant00tube Year: 1897 Fl(i. '249.—Pii-kkrmium gigantcum on P'uiux Thunhc-gd from Japan, (v. Tubeuf phot.—the specimen presented by Prof. Grasmann of Tokio.) P. brevius Barcl. On Pinus exeelsa in India. P. complanatum Barcl. On Pinus longifolia in India: on rind as well as needles. B. On the rind or bark: Peridermium Cornui Rostr. et Kiel), (now Vronartium asclepiadeum, p. 381). On Pinus si/lvestris. P. strobi Kleb. (now Cr
![. The fungi which cause plant disease . Plant diseases; Fungi. THE FUNGI WHICH CAUSE PLANT DISEASE 333 phologically inseparable as are also their secia when grown upon their common host. An excellent example of such biologic specialization is offered in the common pine Peridermium. iEcia may be produced upon the pine by sowing of Coleosporium teliospores from Senecio, Campanula, Pulsatilla, etc., but the seciospores which develop on the pine are capable of in- fecting only those species of hosts from which the teho- spores were taken. Similarly Eriksson "* has de- termined that though rus Stock Photo](https://c8.alamy.com/comp/RDE63K/the-fungi-which-cause-plant-disease-plant-diseases-fungi-the-fungi-which-cause-plant-disease-333-phologically-inseparable-as-are-also-their-secia-when-grown-upon-their-common-host-an-excellent-example-of-such-biologic-specialization-is-offered-in-the-common-pine-peridermium-iecia-may-be-produced-upon-the-pine-by-sowing-of-coleosporium-teliospores-from-senecio-campanula-pulsatilla-etc-but-the-seciospores-which-develop-on-the-pine-are-capable-of-in-fecting-only-those-species-of-hosts-from-which-the-teho-spores-were-taken-similarly-eriksson-quot-has-de-termined-that-though-rus-RDE63K.jpg ". The fungi which cause plant disease . Plant diseases; Fungi. THE FUNGI WHICH CAUSE PLANT DISEASE 333 phologically inseparable as are also their secia when grown upon their common host. An excellent example of such biologic specialization is offered in the common pine Peridermium. iEcia may be produced upon the pine by sowing of Coleosporium teliospores from Senecio, Campanula, Pulsatilla, etc., but the seciospores which develop on the pine are capable of in- fecting only those species of hosts from which the teho- spores were taken. Similarly Eriksson "* has de- termined that though rus Stock Photo")
RMRDE63K–. The fungi which cause plant disease . Plant diseases; Fungi. THE FUNGI WHICH CAUSE PLANT DISEASE 333 phologically inseparable as are also their secia when grown upon their common host. An excellent example of such biologic specialization is offered in the common pine Peridermium. iEcia may be produced upon the pine by sowing of Coleosporium teliospores from Senecio, Campanula, Pulsatilla, etc., but the seciospores which develop on the pine are capable of in- fecting only those species of hosts from which the teho- spores were taken. Similarly Eriksson "* has de- termined that though rus
RMPG4ANT–. Diseases of plants induced by cryptogamic parasites : introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae . Plant diseases; Parasitic plants; Fungi. 416 UKEDINEAE. P. Ravenelii Thiim. On Piiitts aitstralis in North America (probably a variety of P. oblongisporium). P. deformans Mayr. On Pinus mitis in America. P. giganteum (Mayr). On Pimts deiuijlora and P. Thunhergii in Japan. This causes very conspicuous deformation of its host (Figs. 249 and 250). P. complanatum Barcl. On Pinus longifolia in India. The following species frequent other hosts: Peridermium conon
RMRDE1PB–. A text-book of mycology and plant pathology . Plant diseases; Fungi in agriculture; Plant diseases; Fungi. 394 GENERAL PLANT PATHOLOGY fibrovascular system of the cedar leaf (Fig. i6i). From, or near the base of the cedar apple, where the vascular elements are much con- torted, arise many branches, which extend radially almost to the cortex. Harshberger* has investigated the galls produced by two species of Gymnosporangium on the coastal white cedar, Chanuecyparis thyoides, and Stewart^ has published an account of the anatomy of Gymnosporangium galls and Peridermium gaUs. There may be an ove
RMPG4624–. The fungi which cause plant disease . Plant diseases; Fungi. 352 THE FUNGI WHICH CAUSE PLANT DISEASE C. comptoniae Arth. I (=Periderinium pyriforme) on Pinus trunks. Ill on Comp- tonia. The Peridermium is perennial in the trunks of the pine where it does considerable injur'. Clinton sowed aeciospores from pine. Fig. 256.—Cronartium comptoru;£ (PehdermiumJ on Pinus. After Clinton. on Comptonia and in about twelve daj^s the uredinia began to appear.^''' C. quercus (Brond.) Schr. Hetercecious I (=Peridermium cerebrum) on pine. Ill on oak. Successful inoculations were first reported by Shear,-*
RMRGC77X–. Bulletin of the U.S. Department of Agriculture. Agriculture; Agriculture. MISTLETOE INJURY TO CONIFEES. 13 With the conchision of this general statement of mistletoe injury a more detailed discussion of the various types of infection will now be taken up. RESULT OF INFECTION ON THE BRANCHES. One of the first effects of infection, either of stem or branch, is the formation of a fusiform swelling (fig. 10). Sometimes this swelling is very pronounced and may resemble the enlargements caused by some species of Peridermium (fig. 11). The swelling is the first stage of the future hypertrophy com
RMPG4APA–. Diseases of plants induced by cryptogamic parasites : introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae . Plant diseases; Parasitic plants; Fungi. PERIDERMIUM. 415 P. filamentosum Peck. On Pinus ponderosa, also in America. P. Harknessii Moore. On Pinus pcmderosa, P. insignia, P. Sahineana, and P. contorta in California.. Fig. 249.âPeHdennium giganteum on Pinus Thunbergii from Japan, (v. Tubeuf phot.âthe specimen presented by Prof. Grasmann of Tokio.) P. brevius Barel. On Pinus excelsa in India. P. complanatum Barcl. On Pinus longifolia in India; on rind as wel
RMRDC141–. Diseases of plants induced by cryptogamic parasites : introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae . Plant diseases; Parasitic plants; Fungi. PERIDERMIUM. 417 The soft hypertrophied shoots are eaten. They occur chiefly in Scandinavia, but recently were observed by Gobi and Tranzschel in the neighbourhood of St. Petersburg.^. Fio. 252.—Aeddium coru^cans on malformed shoots of Spruce. The compact abnormal shoots thickly covered with white aecidia contrast strongly with the normal portions, (v. Tubeuf phot, from material presented by Prof. Fries, TJpsala.) P
RMPG4AP5–. Diseases of plants induced by cryptogamic parasites : introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae . Plant diseases; Parasitic plants; Fungi. Fig. 249.âPeHdennium giganteum on Pinus Thunbergii from Japan, (v. Tubeuf phot.âthe specimen presented by Prof. Grasmann of Tokio.) P. brevius Barel. On Pinus excelsa in India. P. complanatum Barcl. On Pinus longifolia in India; on rind as well as needles. B. On the rind or bark: Peridermium Cornui Eostr. et Kleb. (now Cronartium asclepiadeum, p. 381). On Pinus sylvestris. P. strobi Kleb. (now Cro- â nartium rihicol
RMRDJ5NM–. Fungous diseases of plants : with chapters on physiology, culture methods and technique . Fungi in agriculture. 436 FUNGOUS DISEASES OF PLANTS fo§doR88DQ. The genus Coleosporium is to be considered entirely heterce- cious, and whenever secidial stages are known in the life cycle, they occur on species of Pinus, and are referable to the form genus Peridermium. The aecidial stage of the species here discussed has recently been found through inoculation experiments to be a form known as Peridermium acicohnu occurring on leaves of Pinus rigida in several of the northeastern states. The Euro- pea
RMPG4629–. The fungi which cause plant disease . Plant diseases; Fungi. THE FUNGI WHICH CAUSE PLANT DISEASE 351 I (=Peridermium strobi). ^cia caulicolous, causing fusiform swellings of the stem, rounded to elongate; peridium inflated, rup- turing at sides, thick, membranous. Spores ellipsoid to ovoid, 18-20 X 22-23 fi, wall colorless, coarsely verrucose except on elongate smooth spot, 2-2.5 n thick, on smooth spot 3-3.5 n thick. II. Uredinia hypophyllous, thickly scattered in groups, round, pustular, 0.1-0.3 mm., at first bright yellow; peridia delicate.. Fio. 255.—Cronartium. A, urediaium; B, telium.
RMRE2G9M–. The British rust fungi (Uredinales) their biology and classification. Rust fungi. Fig. 241. G. Senecionis. a, chain of uredospores; b, two fascicles of leaves of P. silvestris, bearing peridia on one leaf only of each fascicle (reduced). Pig. 242. C. Senecionis. Teleuto- spore germinating. This is the species of Coleosporium whose life-history has been longest known; Wolff first experimentally demonstrated it in 1872, and he was followed by Plowright in 1882, as well as by Cornu, Hartig, Rathay, Von Thiimen, Rostnip, Klebahn and Fischer. The secidium had previously been called Peridermium. S
RMPFGMEN–. Dansk forstzoologi. Forest animals; Zoology. ?00 Insekter. omtrent tommetyk Stammedel af en sygelig Weymouthsfyr., paa hvilken dens Exkrementer i Mængde traadte frem paa Barken (Fig. 170), og Borries omtaler ligeledes, at den æder Gange »i Basten paa Stamme og Grene af Bjærgfyr og Østerrigsk Fyr« samt i Weymouthsfyr angrebne af Peridermium pini. Om Efteraaret forlader Larven den Plantedel, i hvilken den har levet, og overvintrer i en Cocon, der er blandet med Jorddele osv., for næste Foraar at forpuppe sig og nogen Tid efter at komme frem som fuldkomment Insekt. Nogle Individer overvintrer d
![. [Bulletins on forest pathology : from Bulletin U.S.D.A., Washington, D.C., 1913-1925]. Trees; Plant diseases. MISTLETOE INJURY TO CONIFERS. 13 With the conclusion of this general statement of mistletoe injury a more detailed discussion of the various types of infection will now be taken up. RESULT OF INFECTION ON THE BRANCHES. One of the first effects of infection, either of stem or branch, is the formation of a fusiform swelling (fig. 10). Sometimes this swelling is very pronounced and may resemble the enlargements caused by some species of Peridermium (fig. 11). The swelling is the first s Stock Photo](https://c8.alamy.com/comp/RG8YGX/bulletins-on-forest-pathology-from-bulletin-usda-washington-dc-1913-1925-trees-plant-diseases-mistletoe-injury-to-conifers-13-with-the-conclusion-of-this-general-statement-of-mistletoe-injury-a-more-detailed-discussion-of-the-various-types-of-infection-will-now-be-taken-up-result-of-infection-on-the-branches-one-of-the-first-effects-of-infection-either-of-stem-or-branch-is-the-formation-of-a-fusiform-swelling-fig-10-sometimes-this-swelling-is-very-pronounced-and-may-resemble-the-enlargements-caused-by-some-species-of-peridermium-fig-11-the-swelling-is-the-first-s-RG8YGX.jpg ". [Bulletins on forest pathology : from Bulletin U.S.D.A., Washington, D.C., 1913-1925]. Trees; Plant diseases. MISTLETOE INJURY TO CONIFERS. 13 With the conclusion of this general statement of mistletoe injury a more detailed discussion of the various types of infection will now be taken up. RESULT OF INFECTION ON THE BRANCHES. One of the first effects of infection, either of stem or branch, is the formation of a fusiform swelling (fig. 10). Sometimes this swelling is very pronounced and may resemble the enlargements caused by some species of Peridermium (fig. 11). The swelling is the first s Stock Photo")
RMRG8YGX–. [Bulletins on forest pathology : from Bulletin U.S.D.A., Washington, D.C., 1913-1925]. Trees; Plant diseases. MISTLETOE INJURY TO CONIFERS. 13 With the conclusion of this general statement of mistletoe injury a more detailed discussion of the various types of infection will now be taken up. RESULT OF INFECTION ON THE BRANCHES. One of the first effects of infection, either of stem or branch, is the formation of a fusiform swelling (fig. 10). Sometimes this swelling is very pronounced and may resemble the enlargements caused by some species of Peridermium (fig. 11). The swelling is the first s
![. Der Forstschutz. Forests and forestry. Sc^u^ gegen $1(56. 263 SaÄ §oIj förbt [li) gelblid), äermüttt unb jcigt fid) nii[ einem glatten Sd)ntttc luni 5of)lreid)cn lueifien Sönglfiridjen burd)ie^t. 9(uJ bcr ©tenje äioiidjfn gcfintbem i:nb fraiitcm §0(3" ucranlaffcn bie tinftigeit, gelb gefärbten £ii)pf)eu bic @ntftel)ung idimatcr, biinflet Sinien. 9Ki)ceI niifang? gelbüd) unb ?e()r fvnftig, fpäter forblo? unb nußerft fein, gtuc^tttägev oben gelbbraun, fonft afd^grau, faft glatt, fonfolenförutig. — Tn *ßil5 tommt auc^ am Sicfc^: bäume cor. *5. Peridermium pini Willd., var. corticola. I^Per Stock Photo](https://c8.alamy.com/comp/PFC76M/der-forstschutz-forests-and-forestry-scu-gegen-156-263-sa-oij-frbt-li-gelblid-ermttt-unb-jcigt-fid-nii-einem-glatten-sdntttc-luni-5oflreidcn-lueifien-snglfiridjen-burdiet-9uj-bcr-tenje-ioiidjfn-gcfintbem-inb-fraiitcm-03quot-ucranlaffcn-bie-tinftigeit-gelb-gefrbten-iipfeu-bic-@ntftelung-idimatcr-biinflet-sinien-9kicei-niifang-gelbd-unb-er-fvnftig-fpter-forblo-unb-nuerft-fein-gtuctttgev-oben-gelbbraun-fonft-afdgrau-faft-glatt-fonfolenfrutig-tn-il5-tommt-auc-am-sicfc-bume-cor-5-peridermium-pini-willd-var-corticola-iper-PFC76M.jpg ". Der Forstschutz. Forests and forestry. Sc^u^ gegen $1(56. 263 SaÄ §oIj förbt [li) gelblid), äermüttt unb jcigt fid) nii[ einem glatten Sd)ntttc luni 5of)lreid)cn lueifien Sönglfiridjen burd)ie^t. 9(uJ bcr ©tenje äioiidjfn gcfintbem i:nb fraiitcm §0(3" ucranlaffcn bie tinftigeit, gelb gefärbten £ii)pf)eu bic @ntftel)ung idimatcr, biinflet Sinien. 9Ki)ceI niifang? gelbüd) unb ?e()r fvnftig, fpäter forblo? unb nußerft fein, gtuc^tttägev oben gelbbraun, fonft afd^grau, faft glatt, fonfolenförutig. — Tn *ßil5 tommt auc^ am Sicfc^: bäume cor. *5. Peridermium pini Willd., var. corticola. I^Per Stock Photo")
RMPFC76M–. Der Forstschutz. Forests and forestry. Sc^u^ gegen $1(56. 263 SaÄ §oIj förbt [li) gelblid), äermüttt unb jcigt fid) nii[ einem glatten Sd)ntttc luni 5of)lreid)cn lueifien Sönglfiridjen burd)ie^t. 9(uJ bcr ©tenje äioiidjfn gcfintbem i:nb fraiitcm §0(3" ucranlaffcn bie tinftigeit, gelb gefärbten £ii)pf)eu bic @ntftel)ung idimatcr, biinflet Sinien. 9Ki)ceI niifang? gelbüd) unb ?e()r fvnftig, fpäter forblo? unb nußerft fein, gtuc^tttägev oben gelbbraun, fonft afd^grau, faft glatt, fonfolenförutig. — Tn *ßil5 tommt auc^ am Sicfc^: bäume cor. *5. Peridermium pini Willd., var. corticola. I^Per
RMRH2T0P–. The British rust fungi (Uredinales) their biology and classification. Rust fungi -- Great Britain. CRONARTIUM 313 As the remarkable suggested secidium-stage may possibly be found in this country, it will be convenient to add here the description given of it, so as to aid in its identification : PERIDERMIUM CONORUM-PlCEjE (JEcidiinii conorum-Piceae Reess.) ^Ecidia on the outer surface of the scales, large, ±, cm. or more in diam., oblong or irregular in shape, one or two (or in any case few) on each scale, immersed, white ; spores ellipsoidal, orange, 28—35 x 18— 24 jx ; epispore with numerou
RMRE58GE–. Cryptogamic plants of the USSR. (Flora sporovykh rastenii SSSR). Plants. FIGURE 74. Peridermium pini (Willd.) Kleb. on Pinus: 1 - aecia; 2 - peridial cells, x 600. (Orig.) FIGURE 75. Cronartium gentianeum Thiim. on Gentiana: 1 - urediospores; 2 - teliospores, x 600. (Orig.) 354. 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 [Published for the National Science Foundati
![. Contributions from the Botanical Laboratory, vol. 12. Botany; Botany. 824 Phytopathology [Vol. 25 1935] Hutchinson: Gall-forming Peridermium 825 Microchemical tests. In connection with the histological study of sec- tions prepared by imbedding, a series of microchemical tests was made on sections freshly cut on the ether-freezing microtome. In most cases the tissues were sectioned a few minutes after they were removed from the tree. Starch, tannin, fats, resin, gums, cellulose, suberm, cutm, lignm, and pectin were identified by means of tests outlined by Eckerson^ or Stevens (34). . a Physio Stock Photo](https://c8.alamy.com/comp/REA3P0/contributions-from-the-botanical-laboratory-vol-12-botany-botany-824-phytopathology-vol-25-1935-hutchinson-gall-forming-peridermium-825-microchemical-tests-in-connection-with-the-histological-study-of-sec-tions-prepared-by-imbedding-a-series-of-microchemical-tests-was-made-on-sections-freshly-cut-on-the-ether-freezing-microtome-in-most-cases-the-tissues-were-sectioned-a-few-minutes-after-they-were-removed-from-the-tree-starch-tannin-fats-resin-gums-cellulose-suberm-cutm-lignm-and-pectin-were-identified-by-means-of-tests-outlined-by-eckerson-or-stevens-34-a-physio-REA3P0.jpg ". Contributions from the Botanical Laboratory, vol. 12. Botany; Botany. 824 Phytopathology [Vol. 25 1935] Hutchinson: Gall-forming Peridermium 825 Microchemical tests. In connection with the histological study of sec- tions prepared by imbedding, a series of microchemical tests was made on sections freshly cut on the ether-freezing microtome. In most cases the tissues were sectioned a few minutes after they were removed from the tree. Starch, tannin, fats, resin, gums, cellulose, suberm, cutm, lignm, and pectin were identified by means of tests outlined by Eckerson^ or Stevens (34). . a Physio Stock Photo")
RMREA3P0–. Contributions from the Botanical Laboratory, vol. 12. Botany; Botany. 824 Phytopathology [Vol. 25 1935] Hutchinson: Gall-forming Peridermium 825 Microchemical tests. In connection with the histological study of sec- tions prepared by imbedding, a series of microchemical tests was made on sections freshly cut on the ether-freezing microtome. In most cases the tissues were sectioned a few minutes after they were removed from the tree. Starch, tannin, fats, resin, gums, cellulose, suberm, cutm, lignm, and pectin were identified by means of tests outlined by Eckerson^ or Stevens (34). . a Physio
RMRGBCG7–. Bulletin of the U.S. Department of Agriculture. Agriculture; Agriculture. Fig. 1.—A 6-Year-0ld Jack Pine In- fected WITH PERIDERMIUM CEREBRUM. The complete girdling of the main stem by two oppositely arranged galls is shown. Note the wedge-shaped gall tissues. Fiq. 2.—Four-Year-Old Seedlings of Jack Pine, Showing the Char- acteristic Swellings of Perider- mium Cerebrum. The entire crown of the seedlings develops into spherical brooms.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of thes
RMRDE651–. The fungi which cause plant disease . Plant diseases; Fungi. 330 THE FUNGI WHICH CAUSE PLANT DISEASE aecia are on pines (Peridermium), while the other stages are on dicotyledons. In the Gymnosporangiums the pycnial and secial stages are on Rosacese; the telial on Juniperus and its kin. While a few general rules can be worked out concerning host relations there are many exceptions and to know one stage of a heteroecious rust generally gives little or no clue to what its complementary host may be. The mycelium of the rusts is usually intercellular and local though in a few instances it is exte
RMRDEY03–. The fungi which cause plant disease . Plant diseases; Fungi. 352 THE FUNGI WHICH CAUSE PLANT DISEASE C. comptoniae Arth. I (=Periderinium pyriforme) on Pinus trunks. Ill on Comp- tonia. The Peridermium is perennial in the trunks of the pine where it does considerable injur'. Clinton sowed aeciospores from pine. Fig. 256.—Cronartium comptoru;£ (PehdermiumJ on Pinus. After Clinton. on Comptonia and in about twelve daj^s the uredinia began to appear.^''' C. quercus (Brond.) Schr. Hetercecious I (=Peridermium cerebrum) on pine. Ill on oak. Successful inoculations were first reported by Shear,-*
![. Contributions from the Botanical Laboratory and the Morris Arboretum of the University of Pennsylvania, vol. 14. Botany; Botany. -* * I - ^ [Reprinted from Phytopathology, January, 1938, Vol. XXVIII, No. 1, pp. 24-49.] GALL DEVELOPMENT ON PINUS SYLVESTRIS ATTACKED BY THE WOODGATE PERIDERMIUM, AND MORPHOLOGY OF THE PARASITE^ R . P . T R U E 2 (Accepted for publication Aug. 26, 1937) INTRODUCTION A Peridermium attacks Scotch pine, Pinus sylvestris L., plantations bor- dering Round Lake near Woodgate, New York, causing susceptible trees to form globoid galls. Since its discovery there by York ( Stock Photo](https://c8.alamy.com/comp/RE9M36/contributions-from-the-botanical-laboratory-and-the-morris-arboretum-of-the-university-of-pennsylvania-vol-14-botany-botany-i-reprinted-from-phytopathology-january-1938-vol-xxviii-no-1-pp-24-49-gall-development-on-pinus-sylvestris-attacked-by-the-woodgate-peridermium-and-morphology-of-the-parasite-r-p-t-r-u-e-2-accepted-for-publication-aug-26-1937-introduction-a-peridermium-attacks-scotch-pine-pinus-sylvestris-l-plantations-bor-dering-round-lake-near-woodgate-new-york-causing-susceptible-trees-to-form-globoid-galls-since-its-discovery-there-by-york-RE9M36.jpg ". Contributions from the Botanical Laboratory and the Morris Arboretum of the University of Pennsylvania, vol. 14. Botany; Botany. -* * I - ^ [Reprinted from Phytopathology, January, 1938, Vol. XXVIII, No. 1, pp. 24-49.] GALL DEVELOPMENT ON PINUS SYLVESTRIS ATTACKED BY THE WOODGATE PERIDERMIUM, AND MORPHOLOGY OF THE PARASITE^ R . P . T R U E 2 (Accepted for publication Aug. 26, 1937) INTRODUCTION A Peridermium attacks Scotch pine, Pinus sylvestris L., plantations bor- dering Round Lake near Woodgate, New York, causing susceptible trees to form globoid galls. Since its discovery there by York ( Stock Photo")
RMRE9M36–. Contributions from the Botanical Laboratory and the Morris Arboretum of the University of Pennsylvania, vol. 14. Botany; Botany. -* * I - ^ [Reprinted from Phytopathology, January, 1938, Vol. XXVIII, No. 1, pp. 24-49.] GALL DEVELOPMENT ON PINUS SYLVESTRIS ATTACKED BY THE WOODGATE PERIDERMIUM, AND MORPHOLOGY OF THE PARASITE^ R . P . T R U E 2 (Accepted for publication Aug. 26, 1937) INTRODUCTION A Peridermium attacks Scotch pine, Pinus sylvestris L., plantations bor- dering Round Lake near Woodgate, New York, causing susceptible trees to form globoid galls. Since its discovery there by York (
RMRH2T04–. The British rust fungi (Uredinales), their biology and classification. Uredineae. CRONARTIUM 313 As the remarkable suggested fecicliuia-stage may possibly be found in this country, it will be convenient to add here the description given of it, so as to aid in its identification: Peridermium conorum-Pice^ (j^cidium conorum-Piceae Reess.) ^cidia on the outer surface of the scales, large, i cm. or more in diam., oblong or irregular in shape, one or two (or in any case few) on each. scale, immersed, white; spores ellipsoidal, orange, 28—35 x 18— 24 [X; epispore with numerous, large, crowded, pri
RMRDC149–. Diseases of plants induced by cryptogamic parasites : introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae . Plant diseases; Parasitic plants; Fungi. 416 UKEDINEAE. P. Ravenelii Thiim. On Piiitts aitstralis in North America (probably a variety of P. oblongisporium). P. deformans Mayr. On Pinus mitis in America. P. giganteum (Mayr). On Pimts deiuijlora and P. Thunhergii in Japan. This causes very conspicuous deformation of its host (Figs. 249 and 250). P. complanatum Barcl. On Pinus longifolia in India. The following species frequent other hosts: Peridermium conon
RMRDED3P–. Diseases of plants induced by cryptogamic parasites : introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae . Plant diseases; Parasitic plants; Fungi. Fig. 214.—Cronai'tium asclepiadeum oji Ct/nanch^m Vincetoxicum. The uredo- sori sliow as spots, the teleutospore-sori as processes on the leaves, (v. Tubeuf del) also on Gentiana asclepiadea). The aecidial stage, known as Peridermium Oornui Eostr. et Kleb. produces a blister-rust on the bark of Pinus sylvestris.. Fig. 215.—Ci-onartium asclepiadeum. Section of a Cynanchum leaf. The leaf-parenchyma is permeated with m
RMRGBCFP–. Bulletin of the U.S. Department of Agriculture. Agriculture; Agriculture. Fig. 1.—A 6-Year-0ld Jack Pine In- fected WITH PERIDERMIUM CEREBRUM. The complete girdling of the main stem by two oppositely arranged galls is shown. Note the wedge-shaped gall tissues. Fiq. 2.—Four-Year-Old Seedlings of Jack Pine, Showing the Char- acteristic Swellings of Perider- mium Cerebrum. The entire crown of the seedlings develops into spherical brooms.. Fig. 3.—Various Types of Infection of Young Jack Pine by Peri- dermium comptoniae. Note that in the central figure the fungus has invaded the underground tiss
![. [Bulletins on forest pathology : from Bulletin U.S.D.A., Washington, D.C., 1913-1925]. Trees; Plant diseases. Fig. 1.—A 6-Year-0ld Jack Pine In- fected WITH PERIDERMIUM CEREBRUM. The complete girdling of the main stem by two oppositely arranged galls is shown. Note the wedge-shaped gall tissues. Fiq. 2.—Four-Year-Old Seedlings of Jack Pine, Showing the Char- acteristic Swellings of Perider- mium Cerebrum. The entire crown of the seedlings develops into spherical brooms.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability Stock Photo](https://c8.alamy.com/comp/RG9099/bulletins-on-forest-pathology-from-bulletin-usda-washington-dc-1913-1925-trees-plant-diseases-fig-1a-6-year-0ld-jack-pine-in-fected-with-peridermium-cerebrum-the-complete-girdling-of-the-main-stem-by-two-oppositely-arranged-galls-is-shown-note-the-wedge-shaped-gall-tissues-fiq-2four-year-old-seedlings-of-jack-pine-showing-the-char-acteristic-swellings-of-perider-mium-cerebrum-the-entire-crown-of-the-seedlings-develops-into-spherical-brooms-please-note-that-these-images-are-extracted-from-scanned-page-images-that-may-have-been-digitally-enhanced-for-readability-RG9099.jpg ". [Bulletins on forest pathology : from Bulletin U.S.D.A., Washington, D.C., 1913-1925]. Trees; Plant diseases. Fig. 1.—A 6-Year-0ld Jack Pine In- fected WITH PERIDERMIUM CEREBRUM. The complete girdling of the main stem by two oppositely arranged galls is shown. Note the wedge-shaped gall tissues. Fiq. 2.—Four-Year-Old Seedlings of Jack Pine, Showing the Char- acteristic Swellings of Perider- mium Cerebrum. The entire crown of the seedlings develops into spherical brooms.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability Stock Photo")
RMRG9099–. [Bulletins on forest pathology : from Bulletin U.S.D.A., Washington, D.C., 1913-1925]. Trees; Plant diseases. Fig. 1.—A 6-Year-0ld Jack Pine In- fected WITH PERIDERMIUM CEREBRUM. The complete girdling of the main stem by two oppositely arranged galls is shown. Note the wedge-shaped gall tissues. Fiq. 2.—Four-Year-Old Seedlings of Jack Pine, Showing the Char- acteristic Swellings of Perider- mium Cerebrum. The entire crown of the seedlings develops into spherical brooms.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability
RMREA3PM–. Contributions from the Botanical Laboratory, vol. 12. Botany; Botany. CONTENTS COHEN, ISADORE: The Fixing and Staining of Liriodendron Tulipifera Root Tips and their Mycorrhizal Fungus. Stain Tech- nology, 70:25, (1935). nOAK, K. D.: See Lisi, Alfred G. FOGG, JOHN M., JR.: Lilaeopsis chinensis in Southern New Jer- sey. Bartonia, No. 16:51, (1934). HUTCHINSON, W. G.: Resistance of Pinus sylvestris to a Gall- Forming Peridermium. Phytopathology, 25:819, (1935). LARSEN, ESTHER L.: Distribution of Lilaeopsis chinensis in Dela- ware. Bartonia, No. 7d:56, (1934). Pehr Kalm's Description of Maize,
RMRH1GA9–. The British rust fungi (Uredinales), their biology and classification. Uredineae. 372 CALYPTOSPORA CALYPTOSPORA J. Klihn. Heteroecious. Teleutospores intracellular, occupying the swollen epidermal cells all round the stem of the host for a considerable c^istance, otherwise as in Pucciniastrum. No uredo. vEcidia cylindrical, with a thin peridium; secidiospores verrucose, without gerin-pores, and with no smooth spot. Calyptospora Goeppertiana Klihn. ^cidium columnure A. et S. Consp. p. 121, pi. 5, f. 4. Peridermium columnare S. et K.; Cooke, Handb. p. 535; Micr. Fung. p. 194, pi. 2, f 27, 28.
RMRH2RT3–. The British rust fungi (Uredinales), their biology and classification. Uredineae. COLEOSPORIUM 327 (2) CoLEOSPORiUM Melampyri Karst. Uredo Melampyri Rebentisch, Flor. Neomarch. p. 355. Coleosporium Mdampyri Karst. Myc. Fenn. iv. 62. Fischer, Ured. Schweiz, p. 440, f. 269. Peridermium Soraueri Kleb. Zeitschr. f. Pflanzeiikr. iv. 194. The only apparent differences from G. Euphrasiae are in the size of the spores: uredospores 24—35 X 21—28 fi; teleutospores as much as 115/a long, 21—28/x wide; epispore very thick (up to '28 fi) at the summit. iEcidia on leaves of Finus silvestris; uredo- and te
RMRE2G05–. The British rust fungi (Uredinales) their biology and classification. Rust fungi. 372 CALYPTOSPOEA CALYPTOSPORA J. Kuhn. Heteroecious. Teleutospores intracellular, occupying the swollen epidermal cells all round the stem of the host for a considerable distance,, otherwise as in Pucciniastrum. No uredo. ^cidia cylindrical, with a thin peridium; secidiospores verrucose, without germ-pores, and with no smooth spot. Calyptospora Goeppertiana Kuhn. JEcidium columnare A. et S. Consp. p. 121, pi. 5, f. 4. Peridermium columnare S. et K.; Cooke, Handb. p. 535; Micr. Fung. p. 194, pi. 2, f 27, 28. ? ^
RMRHK581–. Biology of rust resistance in forest trees : proceedings of a NATO-IUFRO advanced study institute, August 17-24, 1969. Trees; Pine; Trees; Rust diseases. 132 S. K. HYUN. Figure 7. A thinned plantation of P. koraiensis 40 years old. stems. The rust was identified as Peridermium strobi, the aecial stage of Cronartivm ribioola J. C. Fisch. ex Rabenh. by Professor Hiratsuka (Takagi, 1937). Dr. Takagi failed to find any Ribes spp. around the plantation. Forest pathologists of the Forest Experiment Station of Korea recently reported (not published) damage to a P. koraiensis plantation by blister r
RMRH2RTY–. The British rust fungi (Uredinales) their biology and classification. Rust fungi -- Great Britain. COLEOSPORIUM 327 (2) Coleosporium Melampyri Karst. Uredo Melampyri Rebentisch, Flor. Neomarch. p. 355. Coleosporium Melampyri Karst. Myc. Fenn. iv. 62. Fischer, Ured. Schweiz, p. 440, f. 269. Peridermium Soraueri Kleb. Zeitschr. f. Pflanzenkr. iv. 194. The only apparent differences from C. Euphrasiae are in the size of the spores: uredospores 24—35 x 21—28 //,; teleutospores as much as 115fi long, 21—28p wide; epispore very thick (up to 28/x) at the summit. iEcidia on leaves of Pinus silvestris
RMRE2G8X–. The British rust fungi (Uredinales) their biology and classification. Rust fungi. COLEOSPOEIUM 327 (2) CoLEOSPORiUM Melampyri Karst. Uredo Melampyri Eebentisch, Flor. Neomaroli. p. 355. Coleosporium Melampyri Karst. Myo. Fenn. iv. 62. Fischer, Ured. Sohweiz, p. 440, f. 269. Peridermium Soraueri Kleb. Zeitschr. f. Pflanzenkr. iv. 194. The only apparent differences from G. Euphrasiae are in the size of the spores: uredospores 24—35 X 21-—28 ^i; teleutospores as much as 115/u, long, 21—28/x wide; epispore very thick (up to 28 yit) at the summit. .iEcidia on leaves of Pinus silvestris; uredo- an
![. Contributions from the Botanical Laboratory and the Morris Arboretum of the University of Pennsylvania, vol. 14. Botany; Botany. 46 Phytopathology [Vol. 28 'â °"'pTyToSh'^2st8l!Sr"7935.'''""' ^^'^^^'"'^ '" " gall-forming Periaern^iurn. 7. Klebahn, H. Peridermium pini CWilld ^ K^^^h i,t,^ o«,-« -^vu ^ 1929. i"'Perments w.th repeating pine rusts. Phytopatl.. 19: 327-342 ,'⢠^'""^'uficl'^- ptIoTX ^:"^J^ ''^Zr''"' """'""^'^ '^ Pâ¢^'-«» of the â 7''Gtââ¢"na"co.%âftor"lt7'" "â ' ^&qu Stock Photo](https://c8.alamy.com/comp/RE9KYF/contributions-from-the-botanical-laboratory-and-the-morris-arboretum-of-the-university-of-pennsylvania-vol-14-botany-botany-46-phytopathology-vol-28-quotptytosh2st8l!srquot7935quotquot-quot-quot-quot-gall-forming-periaerniurn-7-klebahn-h-peridermium-pini-cwilld-kh-it-o-vu-1929-iquotperments-wth-repeating-pine-rusts-phytopatl-19-327-342-quotquotuficl-ptiotx-quotj-zrquot-quotquotquotquotquot-p-of-the-7gtquotnaquotcoftorquotlt7quot-quot-qu-RE9KYF.jpg ". Contributions from the Botanical Laboratory and the Morris Arboretum of the University of Pennsylvania, vol. 14. Botany; Botany. 46 Phytopathology [Vol. 28 'â °"'pTyToSh'^2st8l!Sr"7935.'''""' ^^'^^^'"'^ '" " gall-forming Periaern^iurn. 7. Klebahn, H. Peridermium pini CWilld ^ K^^^h i,t,^ o«,-« -^vu ^ 1929. i"'Perments w.th repeating pine rusts. Phytopatl.. 19: 327-342 ,'⢠^'""^'uficl'^- ptIoTX ^:"^J^ ''^Zr''"' """'""^'^ '^ Pâ¢^'-«» of the â 7''Gtââ¢"na"co.%âftor"lt7'" "â ' ^&qu Stock Photo")
RMRE9KYF–. Contributions from the Botanical Laboratory and the Morris Arboretum of the University of Pennsylvania, vol. 14. Botany; Botany. 46 Phytopathology [Vol. 28 'â °"'pTyToSh'^2st8l!Sr"7935.'''""' ^^'^^^'"'^ '" " gall-forming Periaern^iurn. 7. Klebahn, H. Peridermium pini CWilld ^ K^^^h i,t,^ o«,-« -^vu ^ 1929. i"'Perments w.th repeating pine rusts. Phytopatl.. 19: 327-342 ,'⢠^'""^'uficl'^- ptIoTX ^:"^J^ ''^Zr''"' """'""^'^ '^ Pâ¢^'-«» of the â 7''Gtââ¢"na"co.%âftor"lt7'" "â ' ^&qu
RMRH2RYN–. The British rust fungi (Uredinales), their biology and classification. Uredineae. 314 CRONARTIUM C. flaecidum Wint. Pilze, i. 236 (1884). Plowr. Ured. p. 254. Sacc. Syll. vii. 598. Peridermium Cornui Kleb. Zeitschr. f. Pflauzenkr. 1892, ii. 269, pi. 5, f. 2. ^cidiospores. ^cidia (P. Cornid) erumpent from the bark, forming large reddish-yellow bladders, generally occupying a portion of a branch in large numbers; spores ellipsoid, 22—26 X 16—20/x; epispore 3—4/* thick, verrucose, thinner on part of its surface and there smooth or somewhat reticulate. Uredospores. Sori small, pustular, surround
RMRDC14P–. Diseases of plants induced by cryptogamic parasites : introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae . Plant diseases; Parasitic plants; Fungi. Fig. 249.âPeHdennium giganteum on Pinus Thunbergii from Japan, (v. Tubeuf phot.âthe specimen presented by Prof. Grasmann of Tokio.) P. brevius Barel. On Pinus excelsa in India. P. complanatum Barcl. On Pinus longifolia in India; on rind as well as needles. B. On the rind or bark: Peridermium Cornui Eostr. et Kleb. (now Cronartium asclepiadeum, p. 381). On Pinus sylvestris. P. strobi Kleb. (now Cro- â nartium rihicol
RMRDC151–. Diseases of plants induced by cryptogamic parasites : introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae . Plant diseases; Parasitic plants; Fungi. PERIDERMIUM. 415 P. filamentosum Peck. On Pinus ponderosa, also in America. P. Harknessii Moore. On Pinus pcmderosa, P. insignia, P. Sahineana, and P. contorta in California.. Fig. 249.âPeHdennium giganteum on Pinus Thunbergii from Japan, (v. Tubeuf phot.âthe specimen presented by Prof. Grasmann of Tokio.) P. brevius Barel. On Pinus excelsa in India. P. complanatum Barcl. On Pinus longifolia in India; on rind as wel
![. [Bulletins on forest pathology : from Bulletin U.S.D.A., Washington, D.C., 1913-1925]. Trees; Plant diseases. Fig. 1.—A 6-Year-0ld Jack Pine In- fected WITH PERIDERMIUM CEREBRUM. The complete girdling of the main stem by two oppositely arranged galls is shown. Note the wedge-shaped gall tissues. Fiq. 2.—Four-Year-Old Seedlings of Jack Pine, Showing the Char- acteristic Swellings of Perider- mium Cerebrum. The entire crown of the seedlings develops into spherical brooms.. Fig. 3.—Various Types of Infection of Young Jack Pine by Peri- dermium comptoniae. Note that in the central figure the fun Stock Photo](https://c8.alamy.com/comp/RG9090/bulletins-on-forest-pathology-from-bulletin-usda-washington-dc-1913-1925-trees-plant-diseases-fig-1a-6-year-0ld-jack-pine-in-fected-with-peridermium-cerebrum-the-complete-girdling-of-the-main-stem-by-two-oppositely-arranged-galls-is-shown-note-the-wedge-shaped-gall-tissues-fiq-2four-year-old-seedlings-of-jack-pine-showing-the-char-acteristic-swellings-of-perider-mium-cerebrum-the-entire-crown-of-the-seedlings-develops-into-spherical-brooms-fig-3various-types-of-infection-of-young-jack-pine-by-peri-dermium-comptoniae-note-that-in-the-central-figure-the-fun-RG9090.jpg ". [Bulletins on forest pathology : from Bulletin U.S.D.A., Washington, D.C., 1913-1925]. Trees; Plant diseases. Fig. 1.—A 6-Year-0ld Jack Pine In- fected WITH PERIDERMIUM CEREBRUM. The complete girdling of the main stem by two oppositely arranged galls is shown. Note the wedge-shaped gall tissues. Fiq. 2.—Four-Year-Old Seedlings of Jack Pine, Showing the Char- acteristic Swellings of Perider- mium Cerebrum. The entire crown of the seedlings develops into spherical brooms.. Fig. 3.—Various Types of Infection of Young Jack Pine by Peri- dermium comptoniae. Note that in the central figure the fun Stock Photo")
RMRG9090–. [Bulletins on forest pathology : from Bulletin U.S.D.A., Washington, D.C., 1913-1925]. Trees; Plant diseases. Fig. 1.—A 6-Year-0ld Jack Pine In- fected WITH PERIDERMIUM CEREBRUM. The complete girdling of the main stem by two oppositely arranged galls is shown. Note the wedge-shaped gall tissues. Fiq. 2.—Four-Year-Old Seedlings of Jack Pine, Showing the Char- acteristic Swellings of Perider- mium Cerebrum. The entire crown of the seedlings develops into spherical brooms.. Fig. 3.—Various Types of Infection of Young Jack Pine by Peri- dermium comptoniae. Note that in the central figure the fun
![. Contributions from the Botanical Laboratory, vol. 12. Botany; Botany. 842 Phytopathology [Vol. 25 1935] Hutchinson: Gall-forming Peridermium 843 12. Dickson, James G., Karl P. Link, and A. D. Dickson. Nature of resistance of corn to seedling blight. (Abst.) Phytopath. 23: 9. 1933. 13. DOAK, K. D. Effect of mineral nutrition on the reaction of wheat varieties to leaf rust. (Abst.) Phytopath. 21: 108-109. 1931. 14. DUFR^NOY, J. L'immunite locale. Congr. Intern. Microbiol. 1, Paris. 1930. 1: 635-641. 1931. 15. EOKHOLT, O. Nochmals: Gelbrosterkrankung des Weizens. Deutsche Landw. Presse. 54: 120 Stock Photo](https://c8.alamy.com/comp/RE9N66/contributions-from-the-botanical-laboratory-vol-12-botany-botany-842-phytopathology-vol-25-1935-hutchinson-gall-forming-peridermium-843-12-dickson-james-g-karl-p-link-and-a-d-dickson-nature-of-resistance-of-corn-to-seedling-blight-abst-phytopath-23-9-1933-13-doak-k-d-effect-of-mineral-nutrition-on-the-reaction-of-wheat-varieties-to-leaf-rust-abst-phytopath-21-108-109-1931-14-dufrnoy-j-limmunite-locale-congr-intern-microbiol-1-paris-1930-1-635-641-1931-15-eokholt-o-nochmals-gelbrosterkrankung-des-weizens-deutsche-landw-presse-54-120-RE9N66.jpg ". Contributions from the Botanical Laboratory, vol. 12. Botany; Botany. 842 Phytopathology [Vol. 25 1935] Hutchinson: Gall-forming Peridermium 843 12. Dickson, James G., Karl P. Link, and A. D. Dickson. Nature of resistance of corn to seedling blight. (Abst.) Phytopath. 23: 9. 1933. 13. DOAK, K. D. Effect of mineral nutrition on the reaction of wheat varieties to leaf rust. (Abst.) Phytopath. 21: 108-109. 1931. 14. DUFR^NOY, J. L'immunite locale. Congr. Intern. Microbiol. 1, Paris. 1930. 1: 635-641. 1931. 15. EOKHOLT, O. Nochmals: Gelbrosterkrankung des Weizens. Deutsche Landw. Presse. 54: 120 Stock Photo")
RMRE9N66–. Contributions from the Botanical Laboratory, vol. 12. Botany; Botany. 842 Phytopathology [Vol. 25 1935] Hutchinson: Gall-forming Peridermium 843 12. Dickson, James G., Karl P. Link, and A. D. Dickson. Nature of resistance of corn to seedling blight. (Abst.) Phytopath. 23: 9. 1933. 13. DOAK, K. D. Effect of mineral nutrition on the reaction of wheat varieties to leaf rust. (Abst.) Phytopath. 21: 108-109. 1931. 14. DUFR^NOY, J. L'immunite locale. Congr. Intern. Microbiol. 1, Paris. 1930. 1: 635-641. 1931. 15. EOKHOLT, O. Nochmals: Gelbrosterkrankung des Weizens. Deutsche Landw. Presse. 54: 120
RMRE36WW–. The British rust fungi (Uredinales) their biology and classification. Rust fungi. 314 CEONAETIUM C. flaccidwm Wint. Pilze, i. 236 (1884). Plowr. Ured. p. 254. Sacc. Syll. vii. 598. Peridermium Cornui Kleb. Zeitschr. f. Pflauzenkr. 1892, ii. 269, pi. 5, f. 2. -^cidiospores. Jilcidia (P. Cornui) erumpent from the bark, forming large reddish-yellow bladders, generally occupying a portion of a branch in large numbers; spores ellipsoid, 22—26 X 16—20/x; epispore 3—4> fi thick, verrucose, thinner on part of its surface and there smooth or somewhat reticulate. Uredospores. Sori small, pustular,
RMRDEY05–. The fungi which cause plant disease . Plant diseases; Fungi. THE FUNGI WHICH CAUSE PLANT DISEASE 351 I (=Peridermium strobi). ^cia caulicolous, causing fusiform swellings of the stem, rounded to elongate; peridium inflated, rup- turing at sides, thick, membranous. Spores ellipsoid to ovoid, 18-20 X 22-23 fi, wall colorless, coarsely verrucose except on elongate smooth spot, 2-2.5 n thick, on smooth spot 3-3.5 n thick. II. Uredinia hypophyllous, thickly scattered in groups, round, pustular, 0.1-0.3 mm., at first bright yellow; peridia delicate.. Fio. 255.—Cronartium. A, urediaium; B, telium.
RMRH2RRF–. The British rust fungi (Uredinales), their biology and classification. Uredineae. 328 COLEOSPORIUM 7. Coleosporium Campanulae Lev. Uredo Campanulae Pers. Syn. p. 217. Coleosjiorium Campanulae, Lev. Ann. Sci. Xat. ser. .3, viii. 373. Cooke, Handb. p. 521; Micr. Fung. p. 218. Plowr. Ured. p. 251. Sacc. Syll. vii. 753. Fischer, Ured. Schweiz, p. 443. Arthur, N. Amer. Flor. vii. 88. Peridermium oblongisporium Fckl. Symb. Myc. p. 42. Eostr. Bot. Tidsskrift, xix. pp. 40, 41, 49. P. Rostrupii Fischer in Bull. Soc. Bot. Fr. xli. p. clxxii. Sperinogones. Amphigenous, scattered, conspicuou.s. JEcidios
RMRE58K0–. Cryptogamic plants of the USSR. (Flora sporovykh rastenii SSSR). Plants. 226. Aecidixim ingenuum Arth., Bull. Torrey Bot. Club, XI, 1919, p. 124. Peridermium ingenuum Arth. ex Rhoads, Hedgcock, Bethel a. Hartley, Phytopathology, VIII, 1918 (l), p. 336 (sine diagnosi); Syd., Monogr. Ured. IV, 1923, p. 3; Arth., N. Amer. Fl. VII, 1924; p. 646; Sacc, Sylloge, XXIII, 1924, p. 3. Biol. Darker, Journ. Arn. Arb. X, 1929, p. 156; Hunter, Journ. Arn. Arb. XVII, 1936, p. 122, fig. 12 (spermagonium). Spermagonia hypophyllous, discoid, inconspicuous, subcuticular, 80 — 1 SOjj, across, 40 —50 ju high. Sp
RMRE2G8K–. The British rust fungi (Uredinales) their biology and classification. Rust fungi. 328 COLEOSPOKIUM 1. Coleosporium Campanulae Lev. Uredo Campanulae Pers. Syn. p. 217. Coleosporium Campanulae, L6v. Ann. Soi. Nat. ser. 3, viii. 373. Cooke, Handb. p. 521; Micr. Fung. p. 218. Plowr. Ured. p. 251. Sacc. Syll. vii. 753. Fischer, Ured. Schweiz, p. 443. Arthur, N. Amer. Flor. vii. 88. Peridermium ohlongisporium Fckl. Symb. Myc. p. 42. Rostr. Bot. Tidsskrift, xix. jjp. 40, 41, 49. P. Rostrupii Fischer in Bull. Soc. Bot. Fr. xli. p. clxxii. Spermogones. Amphigenous, scattered, conspicuous. ^^idiospore
RMRE5G37–. Cryptogamic plants of the USSR. (Flora sporovykh rastenii SSSR). Plants. 318 Syn.: Uredo petasitis DC, Fl. franc^. II, 1805, p. 236. Coleosporium petasitis (petasitis) de Bary in lit. Peridermium Boudieri Ed. Fisch., Bull. Soc. bot. France, XLI, 1894, p. CLXXI. Peridermium Dietelii Wagn., Ztschr. Pflanzenkr. VI, 1896, S. 10. Biol. Fischer, 1. c, 1894; Entwicklungsgesch. Untersuch. iiber Rost- pilze, 1898, S. 105; Wagner, Ztschr. Pflanzenkr. VI, 1896, S. 10; Klebahn, Wirtswechs, Rostpilze, 1904, S. 364; Mayor, Bull. Soc. Neuchat. sci. natur. XLVIII, 1923, p. 386; LXIV, 1939, p. 16. i^-,. ^^^'
RMRE58ME–. Cryptogamic plants of the USSR. (Flora sporovykh rastenii SSSR). Plants. Uredinopsis pteridis D. et H., ex Dietel, Ber. Deutsch. bot. Ges. XIII, 1895, S.331, Taf. XXVI, Fig. 10, 11, Jaczewski, Hedwigia, XXXIX, 1900, S.(130), Fig. 3; Sacc, Sylloge, XVI, 1902, p.271; Arth., N.Amer. Fl. VII, 1907, p.116, pr.p.; Syd., Monogr. Ured. Ill, 1915, p.490, pr.p.; Weir a. Hubert, Amer. Journ. Bot. IV, 1917, p. 328, fig. 1,2; Hirats., Monogr. Pucciniastreae, 1936, p. 61, pr.p., tab. Ill, fig-l. Aecidium pseudobalsameum D. et H., Erythea, VII, 1899, p. 98. Peridermium pseudobalsameum (D. et H.) Arth. et K
RMRCC3NF–. Diseases of plants induced by cryptogamic parasites; introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae. Plant diseases; Parasitic plants; Fungi. PERIDERMIUM. 413 branch, the living jDortions of the ring grow on with increased vigour, and even attempt to close over the injured portion. This irregular growth, continued in many cases for years, pro- duces abnormal cross-sections (Fig. 248). The mycelium grows out centrifugally from diseased spots, so that the wounds continue to enlarge, and the disease becomes easily noticeable on account of the deep channels and
RMRCC3N3–. Diseases of plants induced by cryptogamic parasites; introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae. Plant diseases; Parasitic plants; Fungi. PERIDERMIUM. 4ir The soft hypertrophied shoots are eaten. They occur chiefly in Scandinavia, but recently were observed by Gobi and Tranzschel in the neio-hbourhood of St. Petersburo.^. Fig. 252.—Accidiuiii coruscans on malformed shoots of Spruce. The compact abnormal shoots thickly covered with white aecidia contrast strongly with the normal portions, (v. Tubeitf phot, from material presented by Prof. Fries, Upsala.)
RMRCDPAT–. Diseases of economic plants. Plant diseases. 400 Diseases of Economic Plants Rust (Cronartium cerebrum (Pk.) H. & L., Peridermium). — Swollen areas occur upon the branches and young stems which are gradually killed. The gall-like growth sheds a. Fig. 212. ^ Gall produced by Cronartium (Perider- mium) cerebrum on pine. After Hedgcock. profusion of orange-colored spores each spring. Chiefly by its interference with the sap current the swellings bring about the death of many trees. The galls are perennial and may. Please note that these images are extracted from scanned page images that may
RMRCDPAP–. Diseases of economic plants. Plant diseases. Trees and Timber 401 persist for many years. One stage of this rust occurs upon the oaks. Rust (Coleosporium solidaginis (Schw.) Thtim., Perider- mium). — Another species of Peridermium occurs upon leaves, producing small, sac-like, tubular outgrowths which contain the spores. Tliis is a stage of a rust which appears later in the season upon golden-rods and asters. Red-rot {Fomes pinicola Cke.). — Upon dead trees this rot begins just under the bark, usually near the tree top, often following bluing. The wood is at first wet and soggy, but soon bec
RMRCD8X9–. Diseases of cultivated plants and trees. Plant diseases; Plants -- Wounds and injuries; Plants, Protection of; Trees -- Diseases and pests. PERIDERMIUM 323 Simla. The American forms referred to this species are quite distinct. Pseudoperidia solitary or scattered, large, for a long time ^jFm. Fig. 97. — Peridcrmiuin Ha?-ki!essi. i, young stem of Pin us ponderosus, three years old, showing the Peridermium, two- thirds nat. size ; 2, appearance of a stem, eight years old, attaclced by the fungus, the swollen portion being studded with aecidia, two-thirds nat. size ; 3, section through Fig. 2, s
![. Diseases of plants induced by cryptogamic parasites; introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae. Plant diseases; Parasitic plants; Fungi. 416 UREDINEAE. P. Ravenelii Tliiiin. On Pinti^ (t,istriiU.f /'. oldongi.^porium). P. deformans Mayr. On I'iims viitii^ in Anifiiea. P. giganteum (Mayr). On Pi/iuK de/tsiyiora And J'. T/iunbe/r/ii iu Jiiydu. Tills causes wry conspicuous deformation of its host (Figs. :249 and 2r)()V P. complanatum Barcl. On Pitms longifoU'i in India. The fnlldwiiiu- s])ceies frc(|uent other hosts: Peridermium conorum Thlini.^ This aee Stock Photo](https://c8.alamy.com/comp/RCC3CR/diseases-of-plants-induced-by-cryptogamic-parasites-introduction-to-the-study-of-pathogenic-fungi-slime-fungi-bacteria-amp-algae-plant-diseases-parasitic-plants-fungi-416-uredineae-p-ravenelii-tliiiin-on-pinti-tistriiuf-oldongiporium-p-deformans-mayr-on-iiims-viitii-in-anifiiea-p-giganteum-mayr-on-piiuk-detsiyiora-and-j-tiunberii-iu-jiiydu-tills-causes-wry-conspicuous-deformation-of-its-host-figs-249-and-2rv-p-complanatum-barcl-on-pitms-longifoui-in-india-the-fnlldwiiiu-s-ceies-frcuent-other-hosts-peridermium-conorum-thlini-this-aee-RCC3CR.jpg ". Diseases of plants induced by cryptogamic parasites; introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae. Plant diseases; Parasitic plants; Fungi. 416 UREDINEAE. P. Ravenelii Tliiiin. On Pinti^ (t,istriiU.f /'. oldongi.^porium). P. deformans Mayr. On I'iims viitii^ in Anifiiea. P. giganteum (Mayr). On Pi/iuK de/tsiyiora And J'. T/iunbe/r/ii iu Jiiydu. Tills causes wry conspicuous deformation of its host (Figs. :249 and 2r)()V P. complanatum Barcl. On Pitms longifoU'i in India. The fnlldwiiiu- s])ceies frc(|uent other hosts: Peridermium conorum Thlini.^ This aee Stock Photo")
RMRCC3CR–. Diseases of plants induced by cryptogamic parasites; introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae. Plant diseases; Parasitic plants; Fungi. 416 UREDINEAE. P. Ravenelii Tliiiin. On Pinti^ (t,istriiU.f /'. oldongi.^porium). P. deformans Mayr. On I'iims viitii^ in Anifiiea. P. giganteum (Mayr). On Pi/iuK de/tsiyiora And J'. T/iunbe/r/ii iu Jiiydu. Tills causes wry conspicuous deformation of its host (Figs. :249 and 2r)()V P. complanatum Barcl. On Pitms longifoU'i in India. The fnlldwiiiu- s])ceies frc(|uent other hosts: Peridermium conorum Thlini.^ This aee
![. Diseases of plants induced by cryptogamic parasites; introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae. Plant diseases; Parasitic plants; Fungi. PERIDERMIUM. 415 P. filamentosum Peck. On Piiius ponderosa, also in America. P. Harknessii Moore. On Pinus ponderosa, P. itisignis, P. Sabineana, and /*. nontorta in California.. Fl(i. "249.—Pii-kkrmium gigantcum on P'uiux Thunhc-gd from Japan, (v. Tubeuf phot.—the specimen presented by Prof. Grasmann of Tokio.) P. brevius Barcl. On Pinus exeelsa in India. P. complanatum Barcl. On Pinus longifolia in India: on ri Stock Photo](https://c8.alamy.com/comp/RCC3NC/diseases-of-plants-induced-by-cryptogamic-parasites-introduction-to-the-study-of-pathogenic-fungi-slime-fungi-bacteria-amp-algae-plant-diseases-parasitic-plants-fungi-peridermium-415-p-filamentosum-peck-on-piiius-ponderosa-also-in-america-p-harknessii-moore-on-pinus-ponderosa-p-itisignis-p-sabineana-and-nontorta-in-california-fli-quot249pii-kkrmium-gigantcum-on-puiux-thunhc-gd-from-japan-v-tubeuf-photthe-specimen-presented-by-prof-grasmann-of-tokio-p-brevius-barcl-on-pinus-exeelsa-in-india-p-complanatum-barcl-on-pinus-longifolia-in-india-on-ri-RCC3NC.jpg ". Diseases of plants induced by cryptogamic parasites; introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae. Plant diseases; Parasitic plants; Fungi. PERIDERMIUM. 415 P. filamentosum Peck. On Piiius ponderosa, also in America. P. Harknessii Moore. On Pinus ponderosa, P. itisignis, P. Sabineana, and /*. nontorta in California.. Fl(i. "249.—Pii-kkrmium gigantcum on P'uiux Thunhc-gd from Japan, (v. Tubeuf phot.—the specimen presented by Prof. Grasmann of Tokio.) P. brevius Barcl. On Pinus exeelsa in India. P. complanatum Barcl. On Pinus longifolia in India: on ri Stock Photo")
RMRCC3NC–. Diseases of plants induced by cryptogamic parasites; introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae. Plant diseases; Parasitic plants; Fungi. PERIDERMIUM. 415 P. filamentosum Peck. On Piiius ponderosa, also in America. P. Harknessii Moore. On Pinus ponderosa, P. itisignis, P. Sabineana, and /*. nontorta in California.. Fl(i. "249.—Pii-kkrmium gigantcum on P'uiux Thunhc-gd from Japan, (v. Tubeuf phot.—the specimen presented by Prof. Grasmann of Tokio.) P. brevius Barcl. On Pinus exeelsa in India. P. complanatum Barcl. On Pinus longifolia in India: on ri
![. Diseases of plants induced by cryptogamic parasites; introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae. Plant diseases; Parasitic plants; Fungi. Fl(i. "249.—Pii-kkrmium gigantcum on P'uiux Thunhc-gd from Japan, (v. Tubeuf phot.—the specimen presented by Prof. Grasmann of Tokio.) P. brevius Barcl. On Pinus exeelsa in India. P. complanatum Barcl. On Pinus longifolia in India: on rind as well as needles. B. On the rind or bark: Peridermium Cornui Rostr. et Kiel), (now Vronartium asclepiadeum, p. 381). On Pinus si/lvestris. P. strobi Kleb. (now Cro- nartiam r Stock Photo](https://c8.alamy.com/comp/RCC3N9/diseases-of-plants-induced-by-cryptogamic-parasites-introduction-to-the-study-of-pathogenic-fungi-slime-fungi-bacteria-amp-algae-plant-diseases-parasitic-plants-fungi-fli-quot249pii-kkrmium-gigantcum-on-puiux-thunhc-gd-from-japan-v-tubeuf-photthe-specimen-presented-by-prof-grasmann-of-tokio-p-brevius-barcl-on-pinus-exeelsa-in-india-p-complanatum-barcl-on-pinus-longifolia-in-india-on-rind-as-well-as-needles-b-on-the-rind-or-bark-peridermium-cornui-rostr-et-kiel-now-vronartium-asclepiadeum-p-381-on-pinus-silvestris-p-strobi-kleb-now-cro-nartiam-r-RCC3N9.jpg ". Diseases of plants induced by cryptogamic parasites; introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae. Plant diseases; Parasitic plants; Fungi. Fl(i. "249.—Pii-kkrmium gigantcum on P'uiux Thunhc-gd from Japan, (v. Tubeuf phot.—the specimen presented by Prof. Grasmann of Tokio.) P. brevius Barcl. On Pinus exeelsa in India. P. complanatum Barcl. On Pinus longifolia in India: on rind as well as needles. B. On the rind or bark: Peridermium Cornui Rostr. et Kiel), (now Vronartium asclepiadeum, p. 381). On Pinus si/lvestris. P. strobi Kleb. (now Cro- nartiam r Stock Photo")
RMRCC3N9–. Diseases of plants induced by cryptogamic parasites; introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae. Plant diseases; Parasitic plants; Fungi. Fl(i. "249.—Pii-kkrmium gigantcum on P'uiux Thunhc-gd from Japan, (v. Tubeuf phot.—the specimen presented by Prof. Grasmann of Tokio.) P. brevius Barcl. On Pinus exeelsa in India. P. complanatum Barcl. On Pinus longifolia in India: on rind as well as needles. B. On the rind or bark: Peridermium Cornui Rostr. et Kiel), (now Vronartium asclepiadeum, p. 381). On Pinus si/lvestris. P. strobi Kleb. (now Cro- nartiam r
RMRD1MWY–. Dansk forstzoologi. Forest animals; Zoology. ?00 Insekter. omtrent tommetyk Stammedel af en sygelig Weymouthsfyr., paa hvilken dens Exkrementer i Mængde traadte frem paa Barken (Fig. 170), og Borries omtaler ligeledes, at den æder Gange »i Basten paa Stamme og Grene af Bjærgfyr og Østerrigsk Fyr« samt i Weymouthsfyr angrebne af Peridermium pini. Om Efteraaret forlader Larven den Plantedel, i hvilken den har levet, og overvintrer i en Cocon, der er blandet med Jorddele osv., for næste Foraar at forpuppe sig og nogen Tid efter at komme frem som fuldkomment Insekt. Nogle Individer overvintrer d
![. Der Forstschutz. Forests and forestry. Sc^u^ gegen $1(56. 263 SaÄ §oIj förbt [li) gelblid), äermüttt unb jcigt fid) nii[ einem glatten Sd)ntttc luni 5of)lreid)cn lueifien Sönglfiridjen burd)ie^t. 9(uJ bcr ©tenje äioiidjfn gcfintbem i:nb fraiitcm §0(3" ucranlaffcn bie tinftigeit, gelb gefärbten £ii)pf)eu bic @ntftel)ung idimatcr, biinflet Sinien. 9Ki)ceI niifang? gelbüd) unb ?e()r fvnftig, fpäter forblo? unb nußerft fein, gtuc^tttägev oben gelbbraun, fonft afd^grau, faft glatt, fonfolenförutig. — Tn *ßil5 tommt auc^ am Sicfc^: bäume cor. *5. Peridermium pini Willd., var. corticola. I^Per Stock Photo](https://c8.alamy.com/comp/RCYCRM/der-forstschutz-forests-and-forestry-scu-gegen-156-263-sa-oij-frbt-li-gelblid-ermttt-unb-jcigt-fid-nii-einem-glatten-sdntttc-luni-5oflreidcn-lueifien-snglfiridjen-burdiet-9uj-bcr-tenje-ioiidjfn-gcfintbem-inb-fraiitcm-03quot-ucranlaffcn-bie-tinftigeit-gelb-gefrbten-iipfeu-bic-@ntftelung-idimatcr-biinflet-sinien-9kicei-niifang-gelbd-unb-er-fvnftig-fpter-forblo-unb-nuerft-fein-gtuctttgev-oben-gelbbraun-fonft-afdgrau-faft-glatt-fonfolenfrutig-tn-il5-tommt-auc-am-sicfc-bume-cor-5-peridermium-pini-willd-var-corticola-iper-RCYCRM.jpg ". Der Forstschutz. Forests and forestry. Sc^u^ gegen $1(56. 263 SaÄ §oIj förbt [li) gelblid), äermüttt unb jcigt fid) nii[ einem glatten Sd)ntttc luni 5of)lreid)cn lueifien Sönglfiridjen burd)ie^t. 9(uJ bcr ©tenje äioiidjfn gcfintbem i:nb fraiitcm §0(3" ucranlaffcn bie tinftigeit, gelb gefärbten £ii)pf)eu bic @ntftel)ung idimatcr, biinflet Sinien. 9Ki)ceI niifang? gelbüd) unb ?e()r fvnftig, fpäter forblo? unb nußerft fein, gtuc^tttägev oben gelbbraun, fonft afd^grau, faft glatt, fonfolenförutig. — Tn *ßil5 tommt auc^ am Sicfc^: bäume cor. *5. Peridermium pini Willd., var. corticola. I^Per Stock Photo")
RMRCYCRM–. Der Forstschutz. Forests and forestry. Sc^u^ gegen $1(56. 263 SaÄ §oIj förbt [li) gelblid), äermüttt unb jcigt fid) nii[ einem glatten Sd)ntttc luni 5of)lreid)cn lueifien Sönglfiridjen burd)ie^t. 9(uJ bcr ©tenje äioiidjfn gcfintbem i:nb fraiitcm §0(3" ucranlaffcn bie tinftigeit, gelb gefärbten £ii)pf)eu bic @ntftel)ung idimatcr, biinflet Sinien. 9Ki)ceI niifang? gelbüd) unb ?e()r fvnftig, fpäter forblo? unb nußerft fein, gtuc^tttägev oben gelbbraun, fonft afd^grau, faft glatt, fonfolenförutig. — Tn *ßil5 tommt auc^ am Sicfc^: bäume cor. *5. Peridermium pini Willd., var. corticola. I^Per
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