Phycologia britannica, or, A History of British sea-weeds, containing coloured figures, generic and specific characters, synonymes, and descriptions of all the species of algae inhabiting the shores of the British Islands . r axis composed of branched,interwoven, irregular fibres, which throw off to the circumference club-shaped ramuli, of the same nature, and nearly the same form, as those ofC. tomentosum. Colour a brilliant green. Substance soft. Codium amphibium was discovered by Mr. Mc Calla in October,1843, spreading in patches of great extent along the edge of thesea, over the surface of
Phycologia britannica, or, A History of British sea-weeds, containing coloured figures, generic and specific characters, synonymes, and descriptions of all the species of algae inhabiting the shores of the British Islands . r axis composed of branched,interwoven, irregular fibres, which throw off to the circumference club-shaped ramuli, of the same nature, and nearly the same form, as those ofC. tomentosum. Colour a brilliant green. Substance soft. Codium amphibium was discovered by Mr. Mc Calla in October,1843, spreading in patches of great extent along the edge of thesea, over the surface of a turf-bog which meets the shore atRoundstone Bay. In this situation the plant is exposed alter-nately to the influence of salt and of fresh Avater, and, it wouldappear, is even affected by atmospheric changes: for, its dis-coverer has observed, that in dry weather it loses all its charac-ters, the frond shrinking to a mere nothing, but on the return ofmoisture it immediately gets fresh again. Specimens will, Iunderstand, be published in the second volume of MCallas Alga Hibernica. B. Fig. 1. Codium amphibium •.—natural size. 2. Two of the fronds:-magnified. 3. Filaments from the same :—more highly Ser. ( Pain. Sip&onea- PLATE TOMENTOSUM, Stack. Gen. Char. Frond green, sponge-like (globular, cylindrical or flat; simpleor branched), composed of tubular, interwoven, inarticulate filaments(elongated, branching cells). Fructification; opakc vesicles (conio-cystce) attached to the filaments. Codium {Stack.),—from Kwbwv, theskin of an animal. Codium tomentosum; frond linear, dichotomous, cylindrical or compressed. Codium tomentosum, Stack. Ag. Sp. Alg. vol. i. p. 452, Ag. Syst. p. 177. Spreng. Syst. Veg. vol. iv. p. 365. Grev. Alg. Brit. p. 185. t. 19. Hook. Brit. Fl. vol. ii. p. 318. Harv. in Mack. Ft. Rib. part 3. p. 232. Han. Man. p. 145. Wyatt, Alg. Damn. no. 35. J. Ag. Alg. Medit. p. 23. Endl. 3rd Suppl. p. 21. Kiitz. Pliyc. Gen
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Keywords: ., bookauthorharveywilliamhwilliam, bookcentury1800, bookdecade1840
