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 . m C. tomentosum. WereC. elongatum admitted as a species, several other forms might beenobled on grounds as valid. There is, for instance, a commonstate of this plant, which is very irregularly divided, having thebranches set with numerous lateral branchlets half an inch toan inch long, which is as abnormal as C. elongatum. Codium tomentosum has to the naked eye quite the ap
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 . m C. tomentosum. WereC. elongatum admitted as a species, several other forms might beenobled on grounds as valid. There is, for instance, a commonstate of this plant, which is very irregularly divided, having thebranches set with numerous lateral branchlets half an inch toan inch long, which is as abnormal as C. elongatum. Codium tomentosum has to the naked eye quite the appearance,though not the substance or structure, of a sponge; and, indeedvery closely resembles in form and colour the Spongia hisjnda,Mont., offering a beautiful instance of analogy between organisms,whose affinity is widely separated. * To the habitats given under PL XXXV. for ft adharrens add Kathlin Island,Antrim, Mr. D. Moore, and Tory Island, Mr. G. Hyndman. Mr. Moores spe-cimens were gathered in 1834, and to him, therefore, the credit of being thediscoverer of this plant in Ireland belongs. Fig. 1. Codium tomentosum:—of the natural size. 2. Filaments of theperiphery, with fruit:—highly magnified. Ser. ChlokospermejE. Fam. Siphonea. Plate III. BRYOPSIS PLUMOSA, Ag. Gen. Char. Frond membranaceous, filiform, tubular, cylindrical, glistening,branched; the branches imbricated or distichous and pinnated, filledwith a fine green, minutely granuliferous fluid. Grev. Buyovsisphti/osa; frond having a triangular outline, naked below, branchedabove, branches spreading, their upper half pectinato-pinnated, pin-nules subdistichous. Bbtopsis phimosa, Ag. Sp. Alg. vol. i. p. 448. Syst. p. 178. Grev. Fl. 307. Alg. Brit. p. 187. t. 19. Hook. Br. Fl. vol. ii. p. 318. Harv. 146. Wyatt. Alg. Damn. no. 128. J. Ag. Alg. Medit. p. 21. Midi. 3rdSiippl. p. 20. Mart. Fl. Braz. vol. i. p. 11. KiUz. Ph. Gen. p. 306. Bryopsis Lyngbysei, Fl. Ban. t. 1063. Lyngb. Hyd. Ban.
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Keywords: ., bookauthorharveywilliamhwilliam, bookcentury1800, bookdecade1840
