the Britijh Fuc/\ ivlth particular Defcriptions of each Species. 12 a 



The colour of this Fucus varies — fometimes it is of a li^ht red — ■ 

 fometimes it appears herbaceous and green — at other times it is 

 found of a parchment colour, and even white, owing to its having 

 been expofed to the fun when call up upon the more. In the fe- 

 cond variety the bafe of the leaves and terminal membrane keeps 

 its colour of blood or raw fleih in all expofures. 



9. FUCUS LIGULATUS. 



F. fronde plana avenia fub-triplicato-pinnata, ramis ramulifque 

 dittichis, foliis lineari-lanceolatis fpinofo-dentatis. FL Scotica, 

 p. 946. pi. 29. — IVlth. 3. p. 248. 

 F. herbaceus. Fl. Anglica, p. 582. 



Inter rejectamenta maris apud Weymouth, Exmouth, et in Infnla. 

 Portlandica, necnon apud Yarmouth in Norfolcia. 



Radix Frons valde ramofa, pallide virefcens, tenuis admodum 



et pellucida, plana avenia — Caulis primarius rectus perpetuus, lati- 

 ufculus, fpinulis et ramis diftichis divaricatis-— Hi rami in ramulos 

 faepe multoties dividuntur, omnes ejufdem ac primarius nature et 

 fubftantia? — Tandem quafi in foliola abennt lanceolato-linearia, 

 marginibus fpinofo-dentatis — Altitudo I — 3 pedalis et ultra — Frucli- 

 Jtc-atio hodie latet. 



This plant grows ufually in very deep water, and is to be met 

 with only when the force of feme current has feparated it from its 

 native rock. We never remember to have feen an entire plant 

 with its root. The fragments which we have feen have been 

 fometimes more than a yard in length, and branching out to a con- 

 fiderable extent. Mr. Lightfoot's figure (which is of a very fmall 

 fragment) is executed with great fidelity* His defcription is very 



R 2 good, 



