. Fio. 224.—Aecidia and Pycnidia of various species of Gt/mnoxporangium: G. tremelloides—1 and 3, aecidia on leaf of Pyrun Aria; 0 and fi, aecidia on leaf of Mains; 10 and 20, portions of the peridium of an aecidium from Ci, showing the peculiar articulation of the colls. G. junlpitinuui—3 and U, aecidia on Pyrun Aucuparia; 7 and S- aecidia on Amelancfiier vulgaris. G. clavariafforme—9 and 10, aecidia on Pyius latifoUa; 11, 1'2, and IG, aecidia on Crataegus Oxyacantha, grown out-of-doors; lU, the same aecidia, enlarged; ti, I'j, and 17, aecidia on Crataegus Oxyacantha, indoor culture; 1
. Fio. 224.—Aecidia and Pycnidia of various species of Gt/mnoxporangium: G. tremelloides—1 and 3, aecidia on leaf of Pyrun Aria; 0 and fi, aecidia on leaf of Mains; 10 and 20, portions of the peridium of an aecidium from Ci, showing the peculiar articulation of the colls. G. junlpitinuui—3 and U, aecidia on Pyrun Aucuparia; 7 and S- aecidia on Amelancfiier vulgaris. G. clavariafforme—9 and 10, aecidia on Pyius latifoUa; 11, 1'2, and IG, aecidia on Crataegus Oxyacantha, grown out-of-doors; lU, the same aecidia, enlarged; ti, I'j, and 17, aecidia on Crataegus Oxyacantha, indoor culture; 18, deformed twig of Crataegus bearing pycnidia. (After Tubeuf.) spores) capable of immediate germination. The gelatinous mass dries up from time to time, leaving a bright yellow scar on the swollen part of the host-branch. The sporidia germinate most easily on species of Surhus (Fi/rns). Infections with
Size: 2094px × 2386px
Photo credit: © The Bookworm Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, bookpublisherl, booksubjectfungi
