994 CRYPTOGAMIA ALG^E. 



rupejlris CONFERVA filamentis geniculatis ramofifTimi* 

 /,. 22. viridibus. Sp. pi. 1637. {Dillen. mujc. 2%- 



^. 5-/-29-) 

 Green Rock Conferva, or Sea Beard, y^nglis. 



Upon the fca rocks plentifully. 



■ : ' This is commonly about two or three inches long, 



of a deep green color, confitting of numerous 



- , very flender jointed and branched threads ari- 



fing from the fame root, and forming thick 

 bundles or cluftcrs, dilated upwards. The 

 branches grow without order, and are mod nu- 

 merous towards the fummits of the threads. 

 The joints are pellucid, clofe and fine, and a 

 little contraded at the interfe6tions, where the 

 color is a very dark green. 

 jS. There is a frefh-water variety of this, of a paler 

 green color, divided into fewer branches at the 

 extremities, which is the only difference. It is 

 figured by Dil/enius. Hift. mufc. t. s- fiz- '^^' 

 It grows upon the planks and boards, that are 

 conftantly wet, about water-mills. 



noduhfa CONFERVA filamentis geniculatis ramofifTimis, 

 23. arti^uiis nodulofis, fru6lificationibus tubercu- 



latis lateraiibus. CONFERVA elongata? 



Hudf. I'l. Angl. 484. n. 25. {Dillen. mufc, ^^. 

 t 6 f ?8, 

 Rea kiiottea fea Conferva. Jnglis. 



Or. 



