the generic Char adler of Ufa a y &c. 53 



approaching Boletus, but without pores, and is not unlike B. vcrfi- 

 color. Whether Ulva montana Light. 973 be the fame with this, 

 or to what genus it properly ought to be referred, muff, be deter- 

 mined by fuch perfons as may have an opportunity of examining 

 it in its native place of growth. 



Ulva atomaria — fronde membranacea plana dilatata palmata : 

 fegmentis linearibus fubramofis fubciliatis. Species nova. 



Radix nulla, nifi bafis frondis paululum explanata, fupeme 

 tomentofa. — Frons brunnea, tenerrima, membranacea, plana, 

 dodrantalis vel femipedalis, a tenui principio orta ftatim late- 

 fcens, et poll paululum progrefTus in plurimas lacinias divifa. 

 Laciniae lincares, ad originem fimplices, dein fubramofa?, mar- 

 ginibus nunc integris, nunc ciliis paucis brevibus furfum ten- 

 dentibus obfitis. — Fructificatio — granula feu femina minutifli- 

 ma, intra utramque frondis paginam fita, et in tafciis tranfverfim 

 concentricis congefta. 



Inter rejectamenta maris apud Yarmouth, Norfolcix, in- 

 venit D. Wigg. 



This elegant plant was found by Mr. Wigg on the beach at 

 Yarmouth, and is fuppofed to have been wafhed from the rocks, 

 either at Cromer to the northward, or Harwich to the fouthward 

 of that place. The fubftance is membranaceous, extremely thin 

 and delicate ; the colour an earthy brown, varying in different 

 fpecimens, of a lighter or darker fhade, but always having a con- 

 siderable degree of tranfparency. The height of the largeft fpeci- 

 mens hitherto found has not exceeded (ix or feven inches; the 

 breadth about half as much. In fome the frond is fuddenly dilated 



into 



