. Fio. lOS.—Mamiana fimhriala on Carpinus Leaf of Hornbeam seen on lower surface. Stroma (enlarged), with the long black necks of the perithecia projecting from the ruptured leaf-epidermis, (v. Tubeuf del.) Valsa. A stroma is generally present, but is of very variable appear- ance ; embedded in it are the perithecia, with only their beak- like mouths projecting. The spores are hyaline or light-brown, unicellular, and generally bent. No paraphyses are present. Valsa oxystoma ; This causes disease and death of branches of Alnus viridis in the Alps. The symptoms are withermg
. Fio. lOS.—Mamiana fimhriala on Carpinus Leaf of Hornbeam seen on lower surface. Stroma (enlarged), with the long black necks of the perithecia projecting from the ruptured leaf-epidermis, (v. Tubeuf del.) Valsa. A stroma is generally present, but is of very variable appear- ance ; embedded in it are the perithecia, with only their beak- like mouths projecting. The spores are hyaline or light-brown, unicellular, and generally bent. No paraphyses are present. Valsa oxystoma ; This causes disease and death of branches of Alnus viridis in the Alps. The symptoms are withermg and drying up of single branches on an otherwise sreen bush. This disease causes severe loss in the Tyrol, 'Vitrei <d /ramux scientifiqiies, 1890. V. Tubeuf. "Zwei Feinde d. Al-peneile," Forsllich-uatuncm. ZtUschrijt, 1892.
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Keywords: ., bookcentury1800, bookdecade1890, bookpublisherl, booksubjectfungi
