CRYPTOGAMIA ALGiE. 957 



The {talk is filiform, comprefs*d, and branched; 

 the branches of the fame fize with the ftalk, 

 lanceolate, alternate, fometimes oppofite, fimply 

 and often doubly pinnated ; the pinnules al- 

 ternate, fometimes oppofite, fetaceous, thinly 

 fet, arid flightly curving upward. 



The points of thefe fetaceous pinnules are fre- 

 quently dilated, and in them we believe the 

 fructifications may in proper feafon be found. 



F. fronde mem bran aceo-cartilaginea ramofifTmia, 

 ramulis alternatim peftinatis, fruflificationibus 

 globofis lateralibus. — Raii fynopf. p. 37. n, i. 

 FUCUS cartilagineus. Hudf. Ang. />. 473. itd. 

 non Linnai^ nee a Linnao defcriptus videtur. 

 Mufcus marinus Chif. hift. p. CCL. fg. me- 

 diocris. FUCUS plocamium. Gmel. hifi, fucor. 



■p, 153. /. 16./. I. opt.y 



Peflinated Fucus. Anglis. 



Upon the fea rocks, in bafons of water, left by 

 the recefs of the tides, frequent. VIII. 



Its natural color is a moit beautiful bright red or 

 purple, but is often variegated with white or 

 yellow. Its fubflance is cartilaginous, but ex- 

 tremely thin, delicate, and tranfparent. Its 

 height commonly about three or four inches. 



The ftalk is comprefs'd, about half a line in dia- 

 meter, ere(fc, but waved in its growth, and 



divided 



