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. —Swelling from a branch of Juniperus Snhina attacked by Gymno- Knhlnae. Dia- meter at thinnest part 1'7 centimetre, at the thickest (v. Tubeuf phot.) Fig. 236. —Sections of a twig of Savin attacked by G. .mhinar. a, At thickest part of the swelling ; h, 3 cm. under a and normal. In a is shown one of the hollow teleutospore-cushions; five cushion-scars; in the second-ye
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. —Swelling from a branch of Juniperus Snhina attacked by Gymno- Knhlnae. Dia- meter at thinnest part 1'7 centimetre, at the thickest (v. Tubeuf phot.) Fig. 236. —Sections of a twig of Savin attacked by G. .mhinar. a, At thickest part of the swelling ; h, 3 cm. under a and normal. In a is shown one of the hollow teleutospore-cushions; five cushion-scars; in the second-year ring are two shaded zones of wood, chiefly composed of parenchyma. (x25.) (After Woernle.) The sporogenous cushions of G. sahinac are formed in quite a different manner from those of G. davariaeforme. Beneath each cushion the bast increases very rapidly and forms an out- growth, which is still further enlarged by the addition to its apex of six or seven rows of radially arranged cells, rounder and smaller than the bast-cells of the cushion. The mycelium penetrates between these outer cells, and forms over the whole cellular outgrowth a pseudoparenchyma from which the sporo- genous tissue arises.
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