CRYPTOGAMIA ALG^. ' 979 



terillic of this fpecies. Though it be green 

 and pellucid when recent, it turns da:k and 

 almoft black in drying, and frequently becomes 

 hard on account of the mud which is generally 

 mix'd with it. 



a:nphihia6. CONFERVA filamentis squalibus ramofis, ex- 

 ficcatione coeuntibus in aculeos. Sp. pi. 16^4. 

 (Bilkn. mufc. 22. t. 4. f. ly. A. B.C.) 



Amphibious Conferva. AngUs. 



In ditches, on the banks of rivers, and other wet 

 (hady places. X — III. 



It confifts of numerous, very fine, dark-green 

 threads, a little rigid to the touch, creeping 

 together, and forming a wide, thick, fpongy 

 mat, fometin-,es two or three inches deep, the 

 furface of which appears reticulated, owing to 

 the various direction of the fibres. When dry, 

 the fibres converge into points, a little flifF 

 and rigid, when moid, they are again expanded. 



The plant has a mouldy ungrateful fmell, and 

 holds water like a fpunge. 



Uttoralis 7. CONFERVA filamentis asqualibus ramofiffimis 

 elongatis mollibus. — Sp. pi. 16^^. emendata. 

 (Billen. mufc. 23, /. 4. /. i .) 

 The foft olive fea Conferva. AngUs. 

 ^^ Upon the fea rocks in the Frith of Forth, about 

 ^ew-Haven, &c. 

 ' R r r 3 It 



