. oo OG K- Fig. 109.—Fa/«a oxystoma on Alnus viridls. A, Portion of branch with stroma of Vaha breaking through the periderm at four places. B, Enlarged section through a stroma from A. C, Asci and ascospores, isolated from a perithecium. D, Portion of younger branch with periderm ruptured by stromata, in which, however, the perithecia are not yet developed. E, Enlarged section through a stroma of D. (After v. Tubeuf.) with the exterior by means of long projecting necks. The asci contain eight unicellular spores of a slightly bent, rod- like shape. Maturity is reached on the dry dead twigs. Ex
. oo OG K- Fig. 109.—Fa/«a oxystoma on Alnus viridls. A, Portion of branch with stroma of Vaha breaking through the periderm at four places. B, Enlarged section through a stroma from A. C, Asci and ascospores, isolated from a perithecium. D, Portion of younger branch with periderm ruptured by stromata, in which, however, the perithecia are not yet developed. E, Enlarged section through a stroma of D. (After v. Tubeuf.) with the exterior by means of long projecting necks. The asci contain eight unicellular spores of a slightly bent, rod- like shape. Maturity is reached on the dry dead twigs. Externally this disease is identical in appearance with one I ascertained to be due to a beetle {Cryptorliynchus lapaflii),
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Keywords: ., bookcentury1800, bookdecade1890, bookpublisherl, booksubjectfungi
