. A handbook of cryptogamic botany. Cryptogams. CCENOBIE^ 297 protoplasm again breaks up into zoospores, which swarm about for twenty or forty minutes within a sac which protrudes out of the protoplasm. When they come to rest, they arrange themselves within the sac into a small net consisting of from 200 to 300 cells, which gradually grows to. Fig. 260.—Hydrodictyon idricnlatujii Roth. A, net (natural size). _ B^ mesh ( x lo). C, mepazoo sporange (x 300). D, megazoospores (x 600). E^ gametange with zoogameles (X 300). (After Cohn.) one of the ordinary size. In some of the polyhedra smaller and
. A handbook of cryptogamic botany. Cryptogams. CCENOBIE^ 297 protoplasm again breaks up into zoospores, which swarm about for twenty or forty minutes within a sac which protrudes out of the protoplasm. When they come to rest, they arrange themselves within the sac into a small net consisting of from 200 to 300 cells, which gradually grows to. Fig. 260.—Hydrodictyon idricnlatujii Roth. A, net (natural size). _ B^ mesh ( x lo). C, mepazoo sporange (x 300). D, megazoospores (x 600). E^ gametange with zoogameles (X 300). (After Cohn.) one of the ordinary size. In some of the polyhedra smaller and more numerous microzoospores are formed; but they also appear to unite again into a net without displaying sexual functions. Literature. Nageli—Gattungen einzelliger Algen, 1849, P- 92- Braun—VerjUngung in der Natur, 1851 (Ray Soc, Bot. and Phys. Mem., 1853); and Algse unicellulares, 1855. Pringsheim—Monber. Bed. Akad., i860, p. 775 (Quart. Journ. Micr, Sc, 1862, pp. 54 and 104).. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Bennett, Alfred W. (Alfred William), 1833-1902; Murray, George Robert Milne, 1858-. London, New York, Longmans, Green, and Co.
Size: 1538px × 1625px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1880, bookpublisherlondonnewyorklongm
