the Britijh Fuel, with particular Defcriplions of each Species. 213 



It adheres, by fhort thick fibres, to the fub-marine rocks and 

 {tones at Cromer, and in various other parts of the Britiih coaft. 



6l. FUCUS PEDUNCULATUS. 



F. fronde filifonni pinnato-ramofa, ramis fetaceis fimplicibus 

 fub-diftichis ; tuberculis oblongis pedunculatis fparfis. 

 FL Ang. p. 587. Wither'nig, vol. 3. p. 256. 

 Habitat in rupibus et faxis Infnlse Portlandise. FL Ang. — Inter re- 

 jectamenta maris apud Yarmouth in Norfolcia. 



Radix From filiformis pinnato-ramofa, teres, tcnu- 



ifTima, fpithamsea, femipedalis, pedalis & ultra — Rami fimplicifTimi, 

 fetacei, fub-diftichi, inferiores longiores, fuperiores breviores, fu- 

 premi breviffimi; cuncti tuberculis parvis oblongis fparfis obflti — 

 Tubercula feminibus repleta, pedunculis fibi acqualibus vel longio- 

 ribus fuftentata — Color totius plantar ex olivaceo-flavefcens, pal- 

 lidus. 



This very elegant fpecies is readily diftinguifhed from its fcveral 

 affinities : from tenuijtmus, by being only (Imply branched, and by 

 the form of its tubercles ; and from afparagoides alfo, by being fimply 

 branched, by its colour, and by not having fetaceous ramuli alter- 

 nating with the tubercles. 



The branches in this fpecies are entirely deftitute of any other or- 

 nament than the feminiferous tubercles ; and its extremely delicate 

 and flender make, as well as its general habit, fufficientiy prevents 

 the poffibility of confounding it with any other in this dividon. 



It is a particular circumftance belonging to this fpecies, that 

 we have rarely feen any fpecimens which were not infefted with a 

 minute green conferva, growing on almoft all the tubercles, and 



q tcrmi- 



