the Br'itiJI} Fuel, with particular Defer iptiont of each Species. i n 



and forming a new leaf, fimilar to, and nearly as large as, that from 

 which itifTues. The frudification, which is rarely met with, con- 

 fifts of minute round tubercles, each fupported on a fhort peduncle, 

 and when filled with ripe feeds of a dark purple colour, nearly 

 black, fituate on the footftalks of the leaves. Similar tubercles are 

 fometimes obferved placed on the midrib of the larger leaves. 

 It adheres to the rocks by a fmall, thick, folid, but knobbed and 

 mifliapen callofity, and is found on various parts of the Britiflr 

 coaft. We have met with it at Sidmouth in Devonfhire, and Fal- 

 mouth in Cornwall ; and it has alfo been thrown up along with 

 other reje£tamenta upon the fandy fhore at Yarmouth in Norfolk. 



3. Fucus SINUOSUS^ 



F. caule tereti ramofo, foliis oblongis undulatis ramofo-finua- 

 tis fpinofo-dentatis. Buddie^ p. 26. n. 3. Uvedale, p. 12. ». 3^ 



7?, Syn. p. 47. n. 34. FL Dan. t. 65a.. 

 Fucus crenatus. Gmelin, 184. /. 24. 7I i. 

 Fucus rubens. Fl. u^ng. p. c^j 2. FLScot. p.g^T). U^itheringjVol. y.. 



P' 235- 



Van /3 foliis fubcartilagineis dentatis. 



Habitat in littoribus marinis ubique ; /3 apud Cromer Norfolciae. 



Adhxret rupibus callo paululum explanato — Frons palmaris,, 

 rubra — CauUs filiformis, teres, craflitie fili emporetici minoris, ra- 

 mofus — Folia fub-oppofita membranacea, tenera, obovata, crenata 

 crenis diftantibus, fefquiuncialia, nervofa — Nervus primarius me- 

 dium folium percurrens, aliis conftanter oppofitis pinnatus eft — 

 matura planta folia prolifera evadunt ; fcilicet nervi laterales elon- 

 gati, et demum foliorum oblongorum primarii fiunt ; exinde mar- 

 a- gines^ 



