the Biitl/h Fuci, with particular Defcriptions of each Species, 213 



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

 ftones at Cromer, and in various other parts of the Britilh coaft. 



61. FUCUS PEDUNCULATUS. 



F. fronde fihformi pinnato-ramofa, ramis fetaceis fimphcibus 

 fub-diftichis ; tubercuUs oblongis pedunculatis fparfis. 

 Fl. Ang. p. 587. Withering^ vol. 3. p. 256. 

 Habitat in rupibus et faxis Infuloe Portlandias. FL Ang. — Inter re- 

 jectamenta maris apud Yarmouth in Norfolcia. 



Radix Frons fihformis pinnato-ramofa, teres, tenu- 



iffima, fpithamasa, femipedalis, pedalis & ultra — Rami fimplicifllmi, 

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

 premi breviUimi ; cun6li tubercuhs parvis oblongis fparfis obfiti — 

 Tubercula feminibus repleta, peduncuhs fibi aequaUbus vel longro- 

 ribus fuftentata — Color totius plantas ex oUvaceo-flavefcens, pal- 

 lid us. 



This very elegant fpecies is readily diftinguifhed from its feveral 

 affinities : from tenuijimus^ by being only fimply 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, fufficiently prevents 

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



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, gi^owing on almofi; all the tubercles, and 



3 termi- 



