. Fig. 174.—Urocystis violae on Viola. Smut-pustules are present on leaf-stalks and fruit-stalks, accompanied by malformation, (v. Tubeuf jjhot.) the cambium remained longer active in the stem, and a secondary division of rind-parenchyma or mesophyll could be observed, along with a disappearance of intercellular spaces; accessory vascular bundles were formed, but the secondary vessels remained incompletely developed. In short, new growth occurred, not in the earlier stages of the host's life, but in the adult. Especially noteworthy is the formation of a small-celled tissue resulting from cell-
. Fig. 174.—Urocystis violae on Viola. Smut-pustules are present on leaf-stalks and fruit-stalks, accompanied by malformation, (v. Tubeuf jjhot.) the cambium remained longer active in the stem, and a secondary division of rind-parenchyma or mesophyll could be observed, along with a disappearance of intercellular spaces; accessory vascular bundles were formed, but the secondary vessels remained incompletely developed. In short, new growth occurred, not in the earlier stages of the host's life, but in the adult. Especially noteworthy is the formation of a small-celled tissue resulting from cell-division in the rind-parenchyma and the mesophyll; this serves as a nutritive tissue for the fungus, ^ Wfikker, Pringsheim's Jahrhuch, 1892.
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Keywords: ., bookcentury1800, bookdecade1890, bookpublisherl, booksubjectfungi
