. Essentials of botany. Botany; Botany. 226 ESSENTIALS OF BOTANY felt-like masses which it forms. It must not be confused with moss protonema (Fig. 199) which also grows on damp earth. The protonema has many cross-partitions in the filaments (often oblique in position) and lacks other. Fig. 157. Yaucheria synandra. A, a filament with archegonia and antheridia (considerably magni- fied); 5, part of same much more highly magnified; o, oogonium; a, antheridium; C, a later stage oi B; D, end of a filament with a zoospore, z, escaping (highly magnified). characteristics shown in Fig. 157, A. It wil
. Essentials of botany. Botany; Botany. 226 ESSENTIALS OF BOTANY felt-like masses which it forms. It must not be confused with moss protonema (Fig. 199) which also grows on damp earth. The protonema has many cross-partitions in the filaments (often oblique in position) and lacks other. Fig. 157. Yaucheria synandra. A, a filament with archegonia and antheridia (considerably magni- fied); 5, part of same much more highly magnified; o, oogonium; a, antheridium; C, a later stage oi B; D, end of a filament with a zoospore, z, escaping (highly magnified). characteristics shown in Fig. 157, A. It will also usually be found to be developing young moss plants. 290. Gross Structure. — Place in a white saucer or a watch glass with very little water some bits of earth on which Vaucheria is gi'ow- ing. Have other specimens growing in water in a sunny place, where they should have remained undisturbed for a week or more,. 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 Bergen, Joseph Y. (Joseph Young), 1851-1917. Boston, Ginn
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