the Britijh Fuci, with parl'tcular Defcriptions of each Species. 155 



we have every reafon to think that it is fo in the fniooth variety of 

 faccharinus. 



Specimens of F. digitatus have been gathered at Harwich 

 with fwehings on the lower part of fome of the fegments, and 

 both digitatus and bulbofus have been obferved in Cornwall with 

 fwellings on the upper pare of the fegments, as reprefcnted in Fl, 

 Dan. Whether thefe fwellings were mere inflations, or full of 

 mucilage, was not obferved ; however, no feeds were obferved in 

 them. The fame fort of. fwellings appear mfacchiirinus var. «, but 

 no feeds have been difcovered. However, all this confirms os in our 

 idea of the analogy between all thefe plants, and of the propriety of 

 calling onr faccharinus var. « the perfect plant, and bidlatiis the acci- 

 dental variety. We are thus alfo more ftrongly perfuaded to look 

 upon the mucus contained in the finuofities merely as the natural 

 confequence of fuch cavities in an extremely mucilaginous plant. 



Both thefe fpecies grow to a vafl fize, from one to nearly five 

 yard?. 



Meffrs. Fougeroiix de Bondaroy and Tillet, in their very ingeni- 

 ous treatife upon marine plants, A51. Parif. ITJI, have confounded 

 digitatus and bulbofus together, alleging that the fipes is both round 

 iind flat. 



28. FUCUS LACERATUS. 



F. fronde membranacea tencrrima raraofa; ramis ramulifque 



fublinearibus apice obtufis. 

 F. laceratus. Gmelin, 179. /. 21./! 4. 

 F. endiviscfolius. Fl. Scot. p. 94S. /. 32. 

 F. crifpatus. Fl. Ang. p. 580. JFithering^ vol. 3.^. 247. 

 Va}\ jS papyraccus— ramis ramulifque tenuioribus fub-linuatis. 



X 2 f^ar. 



