. An introduction to the study of seaweeds. Algae. 132 SEAWEEDS The Geographical Distribution is general, and the best-known British marine forms are V. dichotoma, V. synandra, V, Thureti, V. spha'rospora, and V. litorea. CODIACE^. General Characters.—The order is represented by the genera Codium and Bryopsis, differing in habit and mode of branching, but agreeing in the production. Fig. SH. —Codium tomeiitosum. a, part of section showing club-shaped cells of periphery with lateral sporangia highly magnified ; b, one such cell with sporangium more highly magnified. of gametes of two sorts, bet
. An introduction to the study of seaweeds. Algae. 132 SEAWEEDS The Geographical Distribution is general, and the best-known British marine forms are V. dichotoma, V. synandra, V, Thureti, V. spha'rospora, and V. litorea. CODIACE^. General Characters.—The order is represented by the genera Codium and Bryopsis, differing in habit and mode of branching, but agreeing in the production. Fig. SH. —Codium tomeiitosum. a, part of section showing club-shaped cells of periphery with lateral sporangia highly magnified ; b, one such cell with sporangium more highly magnified. of gametes of two sorts, between which conjugation, though it has not been observed, may yet be pre- sumed with much probability to occur. Derhesia, also included here, is of more simple vegetative develop- ment, and possesses, so far as is known, but one kind. 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 Murray, George Robert Milne, 1858-1911. London, New York, Macmillan
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