Carpenter, William Benjamin, 1813-1885 · Philadelphia : Blakiston · leaf 382
ig. 157), Cosmarium (Fig. 158), and Staaras-trum (Fig. 155), the breadth more nearly equals the length. Inthe former the sporangia are smooth, whilst in the latter they arevery commonly spinous and are sometimes quadrate. In thisgroup, the chief secondary characters are derived from the degreeof… … Binary subdivision and Conjugation of Didymoprium GrevilUl ••—A, portion of filament, surrounded by gelatinous envelope ; B, dividingcell; c, single cell viewed transversely; d, two cells in conjugation ;E, formation of zygospore. 269. The Desmidiacece are not found in running streams, unlessthe…
Microscopy · Biology
Internet Archive · Medical Heritage Library · Public Domain Mark 1.0. Free to use for anything.
