. Class-book of botany [microform] : being outlines of the structure, physiology, and classification of plants : with a flora of the United States and Canada. Botany; Botany; Plants; Plants; Botanique; Botanique; Plantes; Botanique. 509, Each grain of pollen is a mem- branous cell or sack containing a fluid. Its coat is double, the outer is more tliick and firm, exhibiting one or more breaks where the inn^r coat, which is very thin and expansible, is uncovered. In the fluid are suspended molecules of inconceivable minute- ness, said to possess a tre- inulous motion. When <Iie inemhi-ane is
. Class-book of botany [microform] : being outlines of the structure, physiology, and classification of plants : with a flora of the United States and Canada. Botany; Botany; Plants; Plants; Botanique; Botanique; Plantes; Botanique. 509, Each grain of pollen is a mem- branous cell or sack containing a fluid. Its coat is double, the outer is more tliick and firm, exhibiting one or more breaks where the inn^r coat, which is very thin and expansible, is uncovered. In the fluid are suspended molecules of inconceivable minute- ness, said to possess a tre- inulous motion. When <Iie inemhi-ane is exposed to moisture it swells and bursts, disobarorioo" if« contents. „,„ 510 PoTTTWT* Tn 7. ^^' f*"!'? **' ^^^ Passion-flower (Paaslflora cwrulea);. 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 Wood, Alphonso, 1810-1881. New York; Chicago : A. S. Barnes; Troy, N. Y. : H. B. Nims
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectbotany, booksubjectpl
