91 8 CRYPTOGAMIA ALG^. 



/. 12. Gmel.hijl, fucor. p. 73. tab. i. A./. 2, 

 Reaumur, a^. Gall, ijii, p. 299. fig. opt. Oed. 

 Dan. /. 2 1 4. Jig. bon. 



Furrow'd Fucus. Anglis. 



We obferv'd it upon rocky fhores in the IJle of 

 Bute, and many other places. VII. 



This is generally about three or four inches long, 

 narrow, linear, riblefs, fmooth, intire on the 

 edges, dichotomous, of a tough cartilaginous 

 fubftance, and olive colour. But the principal 

 character confifts in this, that one fide of the 

 leaf is convex, the other channell'd through' 

 out. The channel is about one-eighth of an 

 inch wide. 



When the plant is in its frudilied ftate, the 

 fummits of the ramifications become dilated 

 and tumid for about the length of half an 

 inch, affuming the appearance of veficles, 

 growing either bifid or in pairs, and covered 

 With fmail tubercles perforated in the centre ; 

 each of which tubercles is a capfuie full of 

 minute feeds. 



nodcfus 9. F. fronde comprefTa dichotoma, foliis diHichis 

 integerrimis, veficulis innatis folitariis dilatatis. 

 Syji. nat. edit. 13. p. 812. F. caule compreflb 

 dichotomo, medio ramorum in veficulam dila- 

 tato. Sp. pi. 1628. {Ger. cmac, 1568. /. 6. 



Moris, 



