920 CRYPTOGAMIA ALG7E. 



and hairy within, Thefe lerve to buoy the plant 



up in the water. 

 This Fucus I have frequently feen ufed by Fifher- 



men to cover their oyfters with, in order to 



preferve them alive and moid. 

 The ftalks are often covered with black cluflers 



of the Conferva Polymorpha of Linnaus. Sp, 



pi. 1636. 

 Boys amufe themfelves with the air-bladders, by 



cutting the larger ones tranfverfely, near the 



end, and making whiftles of them. 

 p. There is a flight variety of this Fucus, having the 



edges of the ftalks ferrated. See Gmel. hifi, 



fucor. tab, i. B. fg. 2. 



^oretis 10. F. fronde filiformi Tomprefta dichotoma, undique 

 utrinque tuberculata. Syjl. nat. edit, i^- P- 813, 

 FUCUS elongatus. Sp. pi. 1627. FUCUS 

 linearis. Hudf. Flor. Angl.p. 467. {Ger. emac, 

 p. 1568. Jig. 5. Reaumur. a5l. Gall, ly 12. p. 24. 

 /. 2. hon. et Gent. Magaz. 1756. p. 64.) 



Long narrow-leav'd Fucus, or Sea Thongs. 

 Anglis. 



We obferv'd it upon the fea-lliores not uncom-? 

 mon. VII. Vlir. 



This is generally two or three feet long, the 

 thongs or fegments about one-fifth of an inch 

 y/icle. The fubftance thick, coriaceous, and 



opaque. 



