984 CRYPTOGAMIA ALGiE. 



verticillata CONFERVA filamentis ramofis, geniculatis, ra- 

 ^5' Tnulis verticillatis furcatis incurvis. — Species non 



defcripta. (Fig. nulla.) 



Verticillate fpongc Conferva. Jnglis. 



Amongft the Tea rocks, in bafons of water left by 

 the tides, in the Frith of Forih^ 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 gcniculated branched ftalks, of the fize of 

 coarfe threads, arife from the fame root. The 

 branches without order, and both every wh^re 

 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. 



tquifetifoUa CONFERVA geniculata ramofa, ramis fubulatis 

 '4» ramuHs dichotomis verticillato-imbricatis. — Spe- 



cies nen defcripia {Fig. nulla.) 

 Red Sponge Conferva. Anglis. 

 Jn the Frith of Forth^ but rare. A fpecimen 

 was communicated by Mv. Talden. The fame 

 we alfo found on the coail of Cornwall, and 

 at the rocks call'd the Needles^ near the ifle of 



PVivhL 



It 



