CRYPTOGAMIA ALGiE. 949 



The color of this is pale red. The fubftance ex- 

 tremely thin and membranaceous, without rib 

 or nerve. The length and breadth of the 

 plant about two or three inches. 



The ramifications are fometimes dichotomous, 

 but generally without any order ; the extre- 

 mities of the fegments commonly dilated, 

 waved, and fringed on the margins with cufled 

 foliaceous dents. In thefe dents, or near their 

 bafe, are immers'd the fructifications, which 

 are little, red, elevated, wart-like dots, con- 

 taining each ten or a dozen feeds, very diftin- 

 guifhable by the help of a microfcope. 



The immerfion of the feeds in the fubflance of 

 the leaf makes this fpecies nearly allied to the 

 genus of ULVA; but being coUefted into 

 warty clufters, it feems to be join'd more na- 

 turally to the tribe of FUCUS. 



F. frondibus fubmembranaceis dichotomis cate- 

 nato-proliferis, apicibus dilatatis bifidis. — An 

 FUCUS crifpus? Syfi, nat, edit. 13./. 815. 

 et Hudf. Fl. Ang. p. 472 ? (Buxbaum. cent. i. 

 /. 60. fg, 2.) 



Proliferous Fucus. AngUs. 



Upon the ihores of the wellern coaft, adhering to 

 ihells and ftones. VIII. 



P p p 3 The 



