CRYPTOGAMIA ALG^. 



9G9 



The fame author, by calcining the plant in the 

 open air, made a very black fait powder, 

 which he called Vegetable Mthiop^ a medi- 

 cine much in ufe as a refohent and deohfirucnt ^ 

 and recommended alfo as an excellent dentrificCy 

 to correal the fcorbutic laxity of the gums, 

 and take off the foulnefs of the teeth. 



iivaricatus F. fronde plana dichotoma integerrima; axillis 



3* divarlcatis, veficulis axillaribus geminis. Syfi, 



flat . edit. 1 3 . */>. 8 1 2 . Sp. pi i6iy. ( Moris, 



hiji. Ox. p. 647. fe^, 15. /. 8. /. 5. ordinis 



inferioris.) 



Divaricated Fucus. Anglis. 



Upon the fhore about Leith and New-Havin. 

 Mv.Talden. VII. VIII. 



Linnaeus diftinguifhes this as a fpecies, but Gmelin 

 and other authors, with more reafon, confider 

 it' only as a variety of the F. veficulofus. We 

 have kept it diftin6t, for the fake of the author 

 whofe method we follow. — The plant is about 

 fix inches long, and the ramifications a quarter 

 of an inch wide, the ftalk or rib near the root 

 generally naked. The leaf is commonly fur- 

 niihed with many air-bladders, moflly in pairs, 

 but towards the fummits of the branches, and 

 often lower down, a fingle air-bladder is placed 

 in the angle of the ramifications, and another 



pair 



