274 ALGiE INARTICULATE. [Sporochnus. 



Sea-shore, frequent. y.. — The young plants are flaccid, and furnish- 

 ed with tufts of hairs arranged in a distichous manner, which, falling off, 

 are succeeded by spines : old plants are harsh and rigid. 



10. Dichloria. Grev. Dichloria. 



Frond cylindrical, filiform, cartilaginous, pinnated with op- 

 posite branches, becoming flaccid and of a verdigris-green 

 colour on exposure to the air. Fructification unknown. Grev. 

 Alg. Brit. p. 39. t. 6. — Name ; hi;, twice and %>.w£/c, green, " in 

 allusion to its singular change of colour." 



1. D. viridis, Grev. (green Dichloria). Grev. Alg. Brit. 



p. 39. t. 6. — Sporochnus viridis, Ag. Sp. Alg. v. 1. p. 154. — 



Chordaria viridis, Ag.Syn.Alg. Scand.p. 14. — Gigartina viridis , 



Lyngb — Desmarestia viridis, Lamour Fucus viridis, Fl. Dan. 



t. 886. Turn. Syn. Fuc. p. 397, Hist. Fuc. t. 97. E. Bot. 

 t. 1669. 



Sea-coast, on rocks and on the larger Algae, in various parts of Eng- 

 land and Ireland, and in Scotland, both on the east and on the west coast 

 (Capt. Carmichael). ©. Summer. — This is one of the most beautiful 

 and slenderest of the inarticulated Algae. One or two feet or more 

 long, much divided in a pinnated manner, with dense capillary and mostly 

 long branches, of an olive-green colour, inclining to orange in age, verdi- 

 gris-green when exposed (while recent) to the air. 



11. Sporochnus. Ag. Sporochnus. 



Frond filiform, cylindrical or compressed, cartiJagineo-mem- 

 branaceous. Fructification; club-shaped, monW'iform filaments, 

 radiating in scattered warts, or concentrical in distinct (mostly 

 elavate, stalked) receptacles, often terminated by a deciduous 

 tuft of filaments. Grev. Alg. Brit. p. 40. t. 6. — Name, <t7fc^, 

 a seed or sporule, and ynjoo;, wool, from the tuft of filaments, with 

 which the fructifications are often terminated. 



1. S. pedunculdtus, Ag. (pedunculated Sporochnus); frond 

 filiform with long slender branches pinnated with elavate recep- 

 tacles terminated by a deciduous tuft of articulated filaments. — 

 Ag. Sp. Alg. v. I, p. 149. Grev. Alg. Brit. p.4l.t. 6. — Gigartina 

 pedunc, Lamour. — Fucus pedunc, Huds. — E. Bot. t. 345. Turn. 



Syn. Fuc. p. 367, Hist. Fuc. t. 188. 



Marine rocks in various parts of England. Preston Pans, Scotland. 

 0. Summer and Autumn. — Colour yellowish-grey. 



2. S. villosus, Ag. (hairy Sporochnus); frond filiform, 

 branches pinnated with opposite pinnae and nodose with nu- 

 merous whorls of dense branched filaments. — Ag. Sp. Alg. 

 p. 155. Grev. Alg. Brit. p. 42. — Conferva villosa, Huds — 

 E. Bot. t. 546. Dillw. Conf. t. 37. 



Marine rocks, on the same coast with the last: and at Ardthur, Ar- 

 gyleshire, Captain Carmichael. — A beautiful species. Mr. Hasell, who 

 found it with the preceding in the Firth of Forth, observes of it that 



