Carpenter, William Benjamin, 1813-1885 · Philadelphia : Blakiston · leaf 356
more distinctly separated by the interposition ofthe gelatinous substance developed between them.—Besides theordinary cells of the beaded filaments, two other kinds are occa-sionally observable ; but it has not yet been ascertained whetherthese are in any way subservient to the true Generative act.… … Portion of gelatinous frondof Nostoc. 298 MICROSCOPIC FORMS OF VEGETABLE LIFE. weeds in their general mode of growth, jet they retain a simplicityof structure so extreme that it apparently requires them to beranked among the Protophytes. They are inhabitants both offresh-water and of the sea; and…
Microscopy · Biology
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