. Botany of the living plant. Botany. GREEN ALGAE 391 A simple example of the N'olvocales, a series oi Iree-swimming organisms which retain their ciha in tlie vegetative stage, is seen in Chlantydomonas (Fig. 329). Each cell has a nucleus, a chromatophore with pyrenoid, an eje- spot, and two ciha by whicli it is actively motile. Externally is a swollen wall of cellulose. Multiplication is by zoospores formed by division of one cell into 2, 4, or 8 (Fig. 329, h). They are enclosed at first in the cell-walJ, but finally escape as separate individuals. There is also sexual reproduction by pairing
. Botany of the living plant. Botany. GREEN ALGAE 391 A simple example of the N'olvocales, a series oi Iree-swimming organisms which retain their ciha in tlie vegetative stage, is seen in Chlantydomonas (Fig. 329). Each cell has a nucleus, a chromatophore with pyrenoid, an eje- spot, and two ciha by whicli it is actively motile. Externally is a swollen wall of cellulose. Multiplication is by zoospores formed by division of one cell into 2, 4, or 8 (Fig. 329, h). They are enclosed at first in the cell-walJ, but finally escape as separate individuals. There is also sexual reproduction by pairing of similar biciliate gametes,—or in some species of dissimilar. v-i. 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 Bower, F. O. (Frederick Orpen), 1855-1948. London, Macmillan and co. , limited
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1919
