the Brlti/J} Fua\ with particular Defer iptiofis of each Species, 193 



We have never obferved any kind of frudlification in this fpe- 

 cies, and it is very doubtful whether it be really a Fucus ; if not, 

 it certainly has more affinity with fome plants at prefent placed in 

 the genus Ulva, than with any of the Conferv<r. It very much rc- 

 fembles the Ulva fijlulofa of the Flora Anglica, particularly in a younr^ 

 ftate, but differs in its much more extended growth, by being lefs 

 tender and fragile, and, moftofall, from the internal annuli, which 

 are never obfervable in the latter plant. 



It may be proper to obferve, that the reference in Sp. PL to Am. 

 Acad. p. 259. /. 3./. 2. is erroneous; what is there defcribed being 

 Fucus TendOf a production now well known to belong to the ani- 

 mal and not to the vegetable kingdom. — This fpecies is fometimes 

 met with extremely twilled. 



51. Fucus TOMENTOSUS. 



F. fronde filiformi ramofiflima tomentofa ; ramis dichotomis 



apicibus angulifque obtufis. Herb. Buddie, p. 34. n. 5. opt. 



Petiver, p. 42. n. 5. opt. Morlfon, Hi/f. Ox. 3. / 15. /. 8. f. 7. 



Petiver, Gaz. t. ^.f. 12. 

 Spongia dichotomos teretifolia viridis. R. Syn. p. 2g.n. 3. 

 comprefTa ex viridi-fplendens. R. Sjn. 



p. 29. n. 4. 

 F. tomentofus. Fl. Ang.p. 584, 

 F. elongatus. Withering., vol. 3./. 251. Stackhoufcy Ner. Bn'tf, 



p. 21. /. 7. 



Habitat in Infula Portlandias, fed rarius — prope Exmouth — prope 

 Plymouth, et per totumlittus Cornubienfe auftrale; frequensnuUibi. 



Radix nulla nift bafis frondis paululum expl.mata — Frons 4 — 6 

 uncialis, filiformis, vix ac ne vix comprefTa, craffitie pennse anferi- 



G c 3 n-*e. 



