. An introduction to the study of seaweeds. Algae. 220 SEAWEEDS closely allied genus Colacolepis is epiphytic on Phyl- lophora nervosa and Ph. rubens. It forms a small crust-like growth on the surface of its host, and is closely attached to its epidermal layer. It also is reproduced only by its tetraspores, so far as is known. The family of Ehodophyllklece is distinguished by. Fig. 68.—Euchevma gpinosum reduced. the gonimoblast being divided into a number of gonimolobes which radiate from the auxiliary cell in all directions. These gonimolobes stretch out separ- ately into the surrounding tiss
. An introduction to the study of seaweeds. Algae. 220 SEAWEEDS closely allied genus Colacolepis is epiphytic on Phyl- lophora nervosa and Ph. rubens. It forms a small crust-like growth on the surface of its host, and is closely attached to its epidermal layer. It also is reproduced only by its tetraspores, so far as is known. The family of Ehodophyllklece is distinguished by. Fig. 68.—Euchevma gpinosum reduced. the gonimoblast being divided into a number of gonimolobes which radiate from the auxiliary cell in all directions. These gonimolobes stretch out separ- ately into the surrounding tissue of the thallus and their terminal cells, or in other cases the upper cells as well, form the carpospores. The auxiliary cell is frequently very large, and it forms the central cell of the whole fruit body. There are only four British genera of this 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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