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 Fig. 214.—Cronartium asdcpiiuhurn on Cynanchum Vincetoxicum. The urudo- sori show as spots, the teleutospore-sori as processes on the leaves, (v. Tubeuf del.) also on Gentiana aschyiadca). The aecidial stage, known as Peridcrmium Cornui Eostr. et Ivleb. produces a blister-rust on the bark of Finus sylvcstris. Fio. 215.—Cronnrtium rwlepindtuin. Section of a C'l/nanck urn leaf. The leaf-parenchyma i

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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 Fig. 214.—Cronartium asdcpiiuhurn on Cynanchum Vincetoxicum. The urudo- sori show as spots, the teleutospore-sori as processes on the leaves, (v. Tubeuf del.) also on Gentiana aschyiadca). The aecidial stage, known as Peridcrmium Cornui Eostr. et Ivleb. produces a blister-rust on the bark of Finus sylvcstris. Fio. 215.—Cronnrtium rwlepindtuin. Section of a C'l/nanck urn leaf. The leaf-parenchyma is permeated with mycelium, and sori are formed on the lower epidermis. A, urcdo-sorus ; B, teleutospore-sorus, many spores of which have germinated and given off promycelia with sporidia. (v. Tubeuf del.) Brown spots may l)e found on the leaves of the Cywiarhum' during July, August, and September (Fig. 214). On examina- tion of the spots with a lens, the leaf-epidermis will be found A very common plant in Europe though not indigenous to Britain. (Kdit.)

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