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 UROCYSTIS. 315 Urocystis occulta (Wallr.). (Britain and America.) This species is common on the haulms, leaves, leaf-sheaths, and less commonly on iloral parts of Sccale cercale (rye). It causes the Fk;. 172. — Vrori/stix occulta on Rj-e. Tlie ears are stunted, and the spore- puwder emerges from longitudinal fissures in the upper part of the steins. (V. Tubeiif phot.) formation of grey stripe


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 UROCYSTIS. 315 Urocystis occulta (Wallr.). (Britain and America.) This species is common on the haulms, leaves, leaf-sheaths, and less commonly on iloral parts of Sccale cercale (rye). It causes the Fk;. 172. — Vrori/stix occulta on Rj-e. Tlie ears are stunted, and the spore- puwder emerges from longitudinal fissures in the upper part of the steins. (V. Tubeiif phot.) formation of grey stripes, from which a black spore-powder escapes. The haulms become diseased and smutty, thereby preventing development of the ear, which remains stunted and


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