Diseases of plants induced by Diseases of plants induced by cryptogamuc parasites; introduction to the study of pathogenic fungi, slime-fungi, bacteria, and algae. English ed. by William G. Smith diseasesofplants00tubeuoft Year: 1897 Fig. 99.—Cucurbitaria A, Stroma with pycnidia containing minute unicellular conidia. B, One of the large smooth pycnidia. (After v. Tubeuf.) The mature perithecia have a peridium consisting of a loose pseudoparenchyma with a rough warty exterior and a pore set in a distinct depression (Fig. 100.) The paraphyses are long, strong threads, often branched,
Diseases of plants induced by Diseases of plants induced by cryptogamuc parasites; introduction to the study of pathogenic fungi, slime-fungi, bacteria, and algae. English ed. by William G. Smith diseasesofplants00tubeuoft Year: 1897 Fig. 99.—Cucurbitaria A, Stroma with pycnidia containing minute unicellular conidia. B, One of the large smooth pycnidia. (After v. Tubeuf.) The mature perithecia have a peridium consisting of a loose pseudoparenchyma with a rough warty exterior and a pore set in a distinct depression (Fig. 100.) The paraphyses are long, strong threads, often branched, and between them arise the long cylindrical asci with rounded ends. The normal number of ascospores is eight in each ascus, but fewer is no exception. In addition to the forms already described, pycnidia of still another sort occur (No. 1, c). They are spherical, with a dark-coloured coarse peridium, and are smaller than the stroma- pycnidia. These pycnidia contain no conidiophores, but give off
Size: 1495px × 1338px
Photo credit: © Bookend / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: archive, book, drawing, historical, history, illustration, image, page, picture, print, reference, vintage
