984 CRtPTOGAMTA ALGJE. 



verticillata CONFERVA filamentis ramofis, geniculatis, ra- 

 ^3' mulis verticillatis furcatis i.ncvirvis. — Species mn 



defcripta. (Fig. nulla.) 



Verticillate fponge Conferva. JngUs. 



Amongft the Tea rocks, in bafons of water left by 

 the tides, in the Frith of Forth^ and many other 

 places, not unfrequent. 



It is about four or five inches long, of a dark 

 dull-green color, turning fufcous when old. 



Many geniculated branched flalks, of the fize of 

 coarfe threads, arife from the fame root; Th? 

 branches without order, and both every where 

 covered with clofe whirls, of fine fhort, elaftic, 

 forked hairs curving inwards, fo that the whole 

 plant appears to the naked eye to be rough 

 and fpongy like the preceding, and at firft 

 view might be eafily miftaken for it, but the 

 microfcope foon difcovers the difference. 



equJfetifoUa CONFERVA geniculata ramofa, ramis fubulatis 

 ^4' ramulis dichotomis verticillato-imbricatis. — Spe- 



cies non defcripta {Fig. nulla.) 

 Red Sponge Conferva. Anglis. 

 In the Frith of Forth., but rare. A fpecimen 

 was communicated by Mr. TaUen. The fame 

 wc alfo found on the coaft of Cornwall and 

 at the rocks cail'd the Needles., near the ifle of 

 Wight. 



Jt 



