Pycnothelia.] LICHENES. 241 



Spicil. p. 21., Lich. Exsicc. n. 39 — 42. — Lichen bellidiflorus, 

 Ach. Prodr.—E. Bot. t. 1894. 



Frequent on the Highland mountains of Scotland. — The largest and 

 most beautiful of the Genus. 



39. Pycnothelia. Dufour. Pycnothelia. 



Thallus subcrustaceous, uniform ; podetia mostly simple, short 

 hollow. Apothecia (cephalodia) orbicular, not bordered, capi- 

 tuliform, thickened, inflated beneath, terminal, reflexed at the 

 margin, uniform within. — Name ; tfu/Lvog, compact, croiuded, and 

 drihq, a small breast, which its fructification resembles, while the 

 thallus is dense and crowded. — I am far from being satisfied 

 with the character of this Genus ; yet there is something in its 

 habit so different from the other Cladoniece, that I do not well 

 see how it can be united either with Cladonia or Scyphophorus. 



1. P. Papilldria, (papillary Pycnothelia); thallus subcrus- 

 taceous uniform greyish- green granulated, podetia erect ven- 

 tricose smooth whitish simple or rarely divided, apothe- 

 cia terminal solitary globose brown. — Cenomyce Papilla ria, 

 Ach. Syn. p. 248. — Cladonia Papill. Hoffm — Lichen Papilla- 

 ria, Ehrh.—E. Bot. t. 907.— Dill. Muse. t. 16./. 28. 



Dry exposed heaths and moors, in England and Scotland. Appin, 

 Capt. Carmichael. 



