the Biiti/Jj Fuel, with particular Defer ipliors of each Species. \ 27 



Hiultipartitis obtnfis terminatis — Truclificatio, tubercula minuta in 

 foliolis terminahbus, et in ipfis veficulis feminitera— Co/or recentis 

 plantSB olivaceus, ficcatJE niger. 



This fpecies has been involved in great doubt and obfcurity: but 

 the infpedion of the Linna^an Herbarium, in which the actual fpe- 

 cimen gathereil by Leofling on the Britifh coaft is preferved, has 

 entirely removed the difficulty. 



The fpecific chara6ler and defcription given above were made 

 from a young and vigorous fpecimen brought from the Mediter- 

 ranean, in which all the leaves were whole, and had apparently all 

 their moft minute ramifications. That in the Linnsean colle£tion 

 and from which Linnsus himfelf formed his fpecific charader, is 

 a much older one, in which the lower linear leaves and the fine 

 ©f the upper ones are broken off; as is the cafe with moft fea plants 

 when long expofcd to the adlion of the waves. 



In the fecond MantiflTa this fpecies is referred to Fucus capenfis, 

 Gm. 157. /. 17./ I.; but certainly erroneoufly, as is evident from the 

 Linnaean fpecimen before mentioned, than which nothing is more 

 unrlike capenfis. 



It differs from barbalus in having veficles, and in fome other par- 

 ticulars which are pointed out under that fpecies. It agrees with 

 fceniculaceus, in having frequently one or more leaves growino- frora 

 the fides of the veficles ; but differs in having thefe leaves conftantly 

 obtufely terminated, whilft thofe oi fceniculaeeus are always lubulate. 

 It differs alfo from the latter in the fhape of the lower leaves and 

 in colour. 



We have never met with this fpecies in a growing ftate ; but have 

 defcribed it as an Englifh plant on the authority of Leofling's fpe- 

 cimen in the Linnaean Herbarium, and from having feen it among 



the 



