143 CRYPTOG AMI AFUNGI. 



self to the risk of describing under a new name that which is pos 

 sibly already well known. 



* Sessile and smooth. 



1. P. atrata, scattered or gregarious, black, with a light colour 

 ed rim ; cupped at first, becoming plane, often with a waved mar 

 gin ; diameter |th. PERS. Syn. 669. 



Hub. On the stalks near the roots of thistles and ragweed, 

 common ; and on decayed branches of the whin. 



2. P. immersa, scattered or gregarious, black, concave, immersed 

 in wood ; diameter 1 line. Sow. Fung. t. 369. f. 9. 



Hob. On decayed gate-posts, much resembling the apo- 

 thecia of a lichen. 



3. P. cartilaginea, scattered, orange-red, fleshy ; base convex, 

 naked; disk concave, becoming convex, the margin circular, 

 smooth ; diameter sometimes |th of an inch Sow. Fung. t. 369. 

 f. 2. P. scutellata, var. 2, WITH. iv. 388. 



Hob. Clay banks, nidulating amongst moss. Autumn and 

 winter. 



Like Pez. coccinea, but generally smaller, less brilliantly 

 coloured, becoming more uniformly convex, and always 

 with a naked rim. 



4. P. nigra, turbinate, firm, gelatinous, externally roughish, 

 dull black ; disk nearly plane, black, smooth MOUG. and NEST., 

 No. 197. Bulgaria inquinans, LOUD. Encydop*, No. 16280. Sot. 

 ''Gall. ii. 738. 



Hab. On the dead trunk of an old and rugged ash near 

 Berwick. 



In consistence this resembles a Tremella. The larger speci- 

 mens are little less than an inch in diameter when moist 

 and fully dilated. 



* * Sessile, rough, downy or hispid. 



5. P. scutellata, saucer-like, scarlet, edged with a fringe of black 

 'stiff hairs; base buff coloured, hirsute LIGHTF. Scot. 1053. 



