Sek. rrONaYLOSPERME.E. (65) Fam. CRYPTONEMIACE^. 



Plate XCI. 

 CHONDRUS CRISPUS.— L?/u^Z;. 



Gen. Char. — Frond cartilaginous, nerveless, flat, or in tlie narrow forms compressed. 

 Fructification : 1. Nemathecia, external, filled with minute spores ; 2. Favellidia, 

 partly immersed in the frond ; 3. Tetraspores, collected in sori immersed in the 

 frond. Chondvns {Stach.) {rom x^fSpos, "cartilage." 



Chondrus crisjnis. — Frond dichotomous, flabelliform ; segments broad, 

 flat, and obcuneate or narrow, linear and compressed ; the apices obtuse 

 or emarginate ; axils rounded. 



Chondrus crisjms. — Lymjh. Hyd. Dan. p. 15, t. 5 a, b ; Grev. Alg. Brit. p. 129, 

 t. 15 ; Book. Br. Fl. vol. ii. p. 302 ; Wyatt, Alg. Damn. No. 118 and 

 119 ; EnclL 3rd Suppl. p. 39 ; Kiitz. Plujc. Gen. p. 398, t. 73, fig. 3 ; 

 Harv. in Mach. Fl. Bib. part 3, p. 201 ; Barv. P. B. jilate 63 ; Barv. 

 Man. p. 141 ; Barv. Syn. p. 115 ; Atlas, plate 44, fig. 202 ; Barv. N. 

 B. A. part 2, p. 181 ; /. G. Arjardh, Sp. Gen. Alg. vol. ii. p. 246. 



Chondrus polymorphus. — Larnour. Ess. p. 39. 



Chondrus incurvalus — Kiitz. Phyc. Gen. p. 399, t. 73, fig. 2. 



Chondrus celficus. — Kiitz. 1. c. 



Sph^rococcus crispus.—Ag. Sp. Alg. vol, i. p. 256; Syst. p. 219; Grev. Fl. 

 Edin. p. 294 ; Sptreng. Syst. Veg. vol. iv. p. 335. 



Fdcus crispus. — Linn. Mant. p. 134 ; Syst. Nat. vol. ii. p. 718 ; With. vol. iv. 

 p. 106 ; Stack. Ner. Brit. p. 63, t. 12 ; Turn. Syst. vol. ii. p. 226 ; 

 Turn. Bist. t. 216, 217 ; Clem. Ess. p. 313 ; Walil. Fl. Lapp. p. 497 ; 

 E. Bot. t. 2285. 



Fucus ceranoides. — Gm. Bist. Fuc. p. 115, t. 7, f. 1 (excl. syn. Linn.) ; Buds. 

 Fl. Angl. p. 582; Light}. Fl. Scot. p. 913 ; Roth, Fl. Germ. vol. iii. 

 p. 4:0 ; Esper, Ic. Fuc. vol. i. p. 143, t. 98, f. 1, 2, 3. 



Fucus memlranifolius. — With. vol. iv. p. 106 (not oi Good, cfc Woodw.). 



Fucus j)olymorphus. — Lamour. Diss. p. 1 (excluding 4th series). 



Fucus stellatus.—Stach Ner. Brit. p. 53, t. 12. 



Fucus lacerus.— Stack. 1. c. p. 50, t. 11. 



Fucus crispatus. — Fl. Ban. t. 826. 



Fucus fiUformis. — Buds. Fl. Angl. p. 585. 



Fucus patens. — Good, ti: Woodw. in Linn. Trans, vol. iii. p. 173. 



Hab. — Found on almost every coast of the British Islands, from high to low-water 

 mark and beyond. Perennial. Spring, summer, and autumn. Very common. 



Geogr. Dist. —Shores of Europe ; eastern shores of North America. 



VOL. II. K 



