Seu. GONGYLOSPErvMEyE. ( 33 ) Fam. URYrTONEMIACE^. 



Plate LXXVIII. 

 PHYLLOPHOEA EUBENS.— (^re^;. 



Gen. Char. — Froud flat, rigid, nerveless, uniformly cellular ; cells minute, roundish 

 angular. Fructification: "1. Tubercles (favellidia), scattered over the surface 

 of the frond, and containing a mass of minute roundish or angular spores ; 



2, "Warts (nemathecia), seated on the frond, and composed of radiating monili- 

 form filaments, whose lower articulations are at length converted into spores ? 



3. Tetraspores, on distinct plants, collected into sori, either towards the apex 

 of the fi-ond, or in proper leaflets." — Harvey. Name from cpvWov, "a leaf," 

 and <pop4u, "to bear." 



Phtllophoka rubens. — Grev. AIq. Brit. p. 135, t. 15 ; Booh. Br. Fl. vol. ii. 

 p. 303 ; Wyatt, AJg. Damn. No. 29 ; Endl. 3rd Suppl. p. 38 ; Kutz. 

 Phyc. Gen. p. 412 ; Harv. in MacL Fl. Hih. part 3, p. 202 ; Harv. 

 P. B. plate 131; Harv. Man. p. 142; Harv. Syn. p. 116; Atlas, 

 plate 45, fig. 205. 



Sph^kococcus rubens. — Ag. Sp. Alg. vol. i. p. 237 ; Ag. Syst. p. 213 ; Hoo^. Fl. 

 Scot, part 2, p. 102 ; Grev. Fl. Edin. p. 296 ; Spreng. Syst. Veg. 

 vol. iv. p. 335. 



Chondrus rubens. — Lynyb. Eyd. Dan. p. 18. 



Delesseria rubens. — Lamour. Ess. p. 38. 



Fucus rubens. — Linn. 5/5. PI. p. 1630 ; Good. & Woodw. in Linn. Trans, vol. iii. 

 p. 165 ; Tiorn. Syn. vol. ii. p. 216 ; Turn. Hist. t. 12 ; E.Bot. t. 1053; 

 Stack. Ner. Brit. 2nd edit. t. 19 ; Hook. Iceland Tour, vol. ii. p. 347. 



Focus prolifer.—Lighff. Fl. Scot. p. 949, t. 30 ; Esper, Ic. Fuc. i. 129. 



F0CUS epiphyllus. — Fl. Dan. t. 708. 



Fucus crispus. — Huds. Fl. Angl. p. 580. 



Hab. — On rocks, stones, shells, &c., beyond tide-mark to 20 fathoms ; also in shady 

 rock-pools. Perennial. Winter, Not uncommon. 



Geogr. Dist. — Atlantic coasts of Europe. Baltic Sea. 



Description. — Root, a broad flattened disc. Frond scarcely stalked, 

 linear or obcuneate, two to eight inches high, simple, or two to three times 

 dichotomons, and repeatedly proliferous, from the imperfectly formed 

 midrib, with frondlets similar to the parent ; all the divisions linear or 

 linear-obciineatc, with rounded axils, and obtuse, roimded or truncate tips, 

 about an inch in length, and a quarter of an inch in breadth, but often 

 of greater size. Structiure uniformly cellular; central cells small, still 

 smaller towards the circumference, where they ai-e very minute. Sub- 



VOL. II. F 



