. Fio. 101.—Tuft of larch needles, the greater number of which are more or less attacked by Sphaerella laricina. (After R. Hartig.) The rod-shaped conidia infect particularly the lower needles of the crown, and three weeks thereafter new conidial cushions

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Keywords: ., bookcentury1800, bookdecade1890, bookpublisherl, booksubjectfungi