. Fig. b'i.—Exoasoia alni-incanae in catkins of Alnus incana. Many of the scales arc developed as elongated red soft tongue-like structures, on which the asci arc produced as a whitish coating, (v. Tubeuf phot.) Exoascus epiphyllus .Sad. (Ev. horcalis Joh.^) The witches'- brooni fungus of the white alder {Alnus incana.) The author- was the first to describe and figure this form of disease in 1884; and Sadebeck recently succeeded in pro- ^ K. Sven. Vet. Akad. 1885 and 1887. Tubeuf, Botan. Centralbl., 1890. -Tubeuf, Beitriige ?.. Kenntniss d. Baumkranlhdttn, 1888.

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Keywords: ., bookcentury1800, bookdecade1890, bookpublisherl, booksubjectfungi