Ser. RHoDosPERMEX. Fam. Coccocarpee. 
Pirate CCCXXXVII.. 
GELIDIUM CARTILAGINEUM, Gavi. 
Gun. Cuan. Frond linear, compressed, pinnated; its aais composed of 
densely interwoven, longitudinal, tenacious fibres; the periphery of 
small, polygonal cells. Fructification of two kinds, on distinct in- 
dividuals: 1, tubercles ( favelldia) immersed in swollen ramuli, con- 
taining a spherical mass of oblong spores; 2, ¢etraspores contained 
in club-shaped ramuli, bipartite or tripartite. Gertmium (Lam.),— 
from gelu, frost, whence also gelatine; but none of the species of the 
restricted genus are gelatinous. 
Gexipium cartilagineum; frond several times pinnated, pinne and pin- 
nule alternate, erecto-patent, with rounded axils, linear, obtuse ; 
tubercles elliptical, mucronate, immersed in the ultimate pinnules. 
GELIDIUM cartilagineum, Gaill. Résum. p.15. Duby, Bot. Gall. p. 948. 
Grev. Alg. Brit. p.140. Hook. Br. Fl. vol.ii. p. 304. Harv. Man. ed. 1. 
p- 8l. ed. 2. p. 139. Kitz. Phyc. Gen. p. 406. t.73 (Anatomy). Sp. 
Alg. p. 763. 
GELIDIUM concatenatum, Lamour. Ess. p. 41. 
GELIDIUM versicolor, Lamour. Ess. p. 41. 
SpH#Rococcus cartilagineus, 4g. Sp. Alg. vol.i. p. 286. Ag. Syst. p. 227. 
Fucus cartilagineus, Linn. Sp. Pl. p.1630. Gun. Fl. Norv. p. 108. t.3. f. 5. 
Esper, Ic. Fuc.t.1. Turn. Syn. vol. ii. p, 284. Turn. Hist. t.124. E. 
Bot. t. 1477. 
Fucus capensis, Gm. Hist. Fuc. p. 157. t. 17. ea le 
Fucus versicolor, Gm. J. c. p. 158. t.17. f. 2. 
Has. Thrown" ashore, occasionally, on the south coasts of England. 
Perennial. Freshwater Bay, Isle of Wight, Dr. Withering (Turn. 
Syn. l.c.) Picked up at Ryde, Isle of Wight, in 1849, by WM. 
Sheppard (Miss Gifford, in litt.) 
Gzoer. Distr. Cape of Good Hope, and Port Natal; abundant. California. 
Canary Islands. Chinese Sea. (Adriatic, Wulfen. Near Nice, Allioni. 
Northern Ocean, as by Finmark, here and there, Gunner :—fide Turn. Hist. 
vol. ii. p. 138.) 
Descr. Root fibrous, matted, extensively spreading. Fronds tufted, from one 
to two feet in length, linear, compressed, scarcely a line in breadth; stem 
undivided or once or twice forked, usually naked below, set in the upper 
half with decompoundly pinnated spreading branches. Branches three or 
four times pinnate, ovate in outline, the lowermost pinnz being longest ~ 
VOL. III. pT 
