Ser. RuoposPERMEZ. Fam. Coccocarpee. 
Pruate LIT. 
GELIDIUM CORNEUM, Lamour. 
Gen. Cuan. Frond linear, compressed, pinnated; its azis composed of 
densely interwoven, longitudinal, tenacious, continuous fibres; the 
periphery of small, polygonal cellules. ructification of two kinds on 
distinct individuals; 1, ¢wbercles ( favellidia) tmmersed in swollen 
ramuli, contaiming a spherical mass of oblong spores. 2, tetraspores 
contained in club-shaped ramuli, bipartite or tripartite. Getmrium 
(Lam.)—from gelu, frost, whence also gelatine; but none of the spe- 
cies of the restricted genus are gelatinous ! 
GeLipium corneum ; frond between cartilaginous and horny, flattish, dis- 
-tichous ; branches linear, attenuated at each end, pinnate or bipimnate ; 
pinnules opposite or alternate, patent, obtuse. 
GELIDIUM corneum, Lamour. Ess. p.41. Grev. Alg. Brit. p. 141. t. xv. 
Hook. Br. Fl. yol. ii. p. 305. Harv. in Mack. Fl. Hib. part 3. p. 203. Wyatt, 
Alg. Danm. no. 30. Hare. Man. p. 80. J. 4g. Alg. Medit. p.102. Endl. 
3rd. Suppl. p.41.  Kiitz. Phyc. Gen. p. 406. Mont. Pl. Canar. p. 158. 
SpH#Rococcws corneus, 4g. Sp. Alg. vol. i. p. 279. Syst. p. 225. Hook. 
Fl. Scot. part. 2. p. 104. Grev. Fl. Edin. p. 296. Spreng. Syst. Veg. 
vol. iv. p. 337. 
Fucus corneus, Huds. Fl. Ang. p. 585. Stack. Ner. Brit. p. 61. t.12. Turn. 
Syn. vol. ii. p. 272. H. Bot. t.1970. Clem. Ess. p. 317. 
Var. 8, sesquipedale; “frond long, between compressed and flat, linear, 
tripinnate, pmnz attenuated at their base, ramuli linear, oblong, short, 
obtuse.” —Grev. 
GELIDIUM corneum, var. sesquipedale, Grev. J. c. p. 142. 
Fucus corneus, var. sesquipedalis, Turn. Hist. t. 257. f.. 
Var. y, pinnatum; “frond narrow, tripinnate, the pinne patent, nearly 
linear, bluntish.”—Grev. 
GELIDIUM corneum, var. pinnatum, Grev. J. c. 
Fucus pinnatus, Huds. Fl. Angl. p. 548. 
Fucus hypnoides, Desv. Fl. Atl. vol. 2. p. 426. 
Var. 8, uniforme; “all the pinne patent, attenuated at the base, obtuse at 
the points and scattered.”—Turn. 
GELIDIUM corneum, var. uniforme, Grev. 1. c. p. 143. 
Fucts corneus, var. uniformis, Turn. 1. c. 
Var. «, capillaceum; “frond narrow, pinne clustered towards its summit, 
nearly setaceous and somewhat erect.”—Turn. 
GELIDIUM corneum, var. capillaceum, Grev. J. c. 
Fucus corneus, var. capillaceus, Turn. 1. c. 
Var. ¢, latifolium; “frond broad, nearly flat, pinne linear-lanceolate, 
mostly simple, set with numerous, short, setaceous pinnz.”—Grer. 
GELIDIUM corneum, var. latifolium, Grev. J. c. 
Var. 1, confertum; “frond compressed, repeatedly pinnated, pinne and 
pinnulz long, very thin, acute and irregularly divided.”—Grev. 
