9io CRYPTOGAMIA ALGIE. 



pair immediately under it. The angular one 

 is often bifid or lunular, which occafions a 

 wide (Iradhng or divarication in that angle of 

 the leaf. The fruftifications are fimilar to 

 thofe of the preceding, but not fo large, th 

 plant itfelf which produces them being fmaller. 



infatus 4. F, fronde plana dichotoma integerrima pundata 



ovaro-lanceolata inflata, apice divifo. Syft. nat. 



812. 



. F. fronde bifida, laciniis ovato-lanceolatis infiatis, 



apice bifiais. Sp.pl. 1627. (Fig. nulla fidenda.) 



Inflated Fucus. Anglis. 



Upon the fhore near Mufslehurgh, 



Mr. Talden. VII. VIII. 



This has all the habit of the F. vejiculofus^ and is 

 fuppofed by Gmelin to be only a variety of it. 

 Its chief charadler confifls in this, that the up- 

 permofb fegments of the leaf are inflated longi- 

 tudinally, as if air had been blown in between 

 the two furfaces. Thefe inflations fomecimes 

 run fingly on one fide of the middle rib of the 

 leaf, but more frequently another runs parallel 

 to it on the oppofite fide. They feern to have 

 much of the lame nature and ufe with the air- 

 bladders in the F. 'vcficulofus. And in fome 

 fpecimens a few air-bladders are found placed 

 here and there in the angles of the branches. 



The i 



