CONFERVA RUBRA. 



C. fliamentis ramofiffimis ; ramulis fetaceis, apicibus furcatis ; diffepi- 

 mentis parum contractis ; articulis in medio pellucidis ; capfulis fub- 

 globofis lateralibus. 



C. rubra. Fl. Ang. p. 600. With. IV. p. 138. Eng. Bot. t. 1166. 

 C. nodulofa. Fl. Scot. p. 944. 



Ceramium virgatum. Roth, Cat. Bot. I. p. 148. t. 8. f. 1. (excl. fyn. Hudf.) 

 Fl. Germ. III. pars. 1. p. 461. 



C. geniculata, ramofiflima lubrica longis fparfifve ramulis. Dill. Mufc. p. 35. 

 t. 6. f. 38. A. Raii Syn. p. 61. 



On Rocks and Stones in the Sea, common. 



IT is much to be regretted that Linnseus did not preferve fpecimens in his 

 Herbarium of the few Confervx which he has defcribed. From the fize and 

 beauty of the prefent fpecies, added to its great abundance on every fhore, it 

 appears almoft impoffible that it fhould have wholly efcaped his attention; but no 

 defcription or reference is to be found in his works, which at all correfpond with 

 it. The author who firfh gave it the trivial name by which it is now generally 

 known was Hudfon ; he refers to the number above quoted of the Hiftoria 

 Mufcorum, but Dillenius, as was conjectured in the Catale£ta Botanica, has 

 confounded two plants under that head ; the firft of which, as appears by the 

 Herbarium, is the prefent fpecies ; the latter, according to the obfervations of my 

 friends Dawfon Turner and Jofeph Woods, jun. is Fucus fubfufcus. 



C. rubra often grows to the length of 18 or 20 inches, and varies from a dark 

 to a light red or purple color, which is very liable to bleach. The root is a fmall 



