See. MELANOSPERMEJl. ( 59 ) Fam. LAMINARIiR. 



Plate CLI. 

 LAMINARIA FASCIA.— ^^7. 



Gen. Chak. — Frond stalked, coriaceous or rarely membranaceous, flat, -witliout a midrib. 

 Fructification : spores collected in spots or sori under the surface of some part of 

 the frond. Name from lamina, " a thin plate." 



Laminaria fascia. — Frond with a very short scarcely distinct stem, 

 gradually exj)anding into a thin, membranous, linear-lanceolate, obovate- 

 lanceolate or oblong frond, generally obtuse at the extremity. 



hx^mABiA fascia.— Ag. Sijn. p. 19; Ag. 8}^. Alg. vol. i. p. 122; Syst. p. 273; 

 Wyatt, Alg. Damn. No. 157 ; E. Bot. Suppl. t. 2845 ; Hook. fil. Fl. 

 Ant. ined. ; JEndl. 3rd Suppl. p. 27 ; ffarv. P. B. plate 45 ; Harv. 

 Man. p. 31 ; Harv. Syn. p. 28 ; Atlas, plate 8, fig. 30. 

 Laminaria debilis. — Ag. Spec. vol. i. p. 120 ; Syst. p. 273 ; Grev. Crypt, t. 277 ; 

 Grev. Alg. Brit. p. 35, t, 5; Hooh. Br. Fl. vol. ii. p. 272 ; Harv. 

 Man. 1st ed. p. 25 ; Endl. 3rd Suppl. p. 27. 

 Laminaria cuneata. — Suhr. 



Laminaria ccespitosa. — /. G. Agardh, S^?. Gen. Alg. vol. i. p. 130. 

 Laminaria papyrina. — Bory, in Diet. Class. d'Hist. Nat. vol. ix. p. 189. 

 Fucus fascia. — Fl. Ban. t. 768 ; Turn. Syn. vol. i. p. 186 ; Roth, Cat, Bot. vol. ii. 

 p. 161. 

 Hab. — On submarine rocks and stones in the sea, near low-water mark. Annual. 

 Summer. Not uncommon. 



Geogr. Dist. — Atlantic shores of Europe from Norway to Spain ; Jlediterranean Sea 

 (Agardh) ; Falkland Islands (Lyall). 



Dbsceiption, — Eoot, a minute disc. Stem, scarcely any, cylindrical at 

 the base, but immediately becoming flattened, and gradually expanding 

 into a thin but tough linear-lanceolate, obovate or obovate-lanceolate 

 frond, four to twelve inches in length, and from a line to an inch and 

 a-half in breadth, sometimes very obtuse at the apex, and at other times 

 more acute ; the inargins more or less waved, and not unfrequently 

 slightly sinuated, as if small fragments had been cut out ; the siu'face 

 quite smooth, and generally with a bright gloss, often with a golden 

 hue in some specimens, while in others the smface is almost entirely 

 without gloss. Structure consisting of rather large oblong cells ; those 

 of the surface minute. Substance membranaceous, rather firm, and very 

 imperfectly adhering to paper. Fructification appears to be unknown. 

 Colour, at first greenish olive, gradually becoming more yellow as it 

 advances in age, and when full grown, is of a rich golden green with 

 a fine gloss. 



