446 110.Psoroma. 4. CENOTHALAME,. Pl. cell. aph. 
7. Psoroma muscorum. Moss psorome. 
Crust scalelike, brownish livid; lobes irregularly and 
deeply torn jagged; apothecia thick; centre flat, obscurely. 
blackish red, even with the thalloid border, which after- 
wards becomes very small. 
Lichen carnosus, Dicks. Crypt. 2,21; Engl. Bot, 1684. 
Lichen hypnorum, dchar. Prod. 93. 
Parmelia hypnorum, Achar, Meth. 185. 
Lecanora hypnorum, Achar. Lich, 417. 
Amone and upon rather rotten mosses. 
to) 
8. Psoroma brunneum. Brown psorome. 
Crust tiledlike, granulatedly lobed, liver-grey; apothecia 
innate in the crust, very crowded, not uniform; centre ra- 
ther convex, brown red; thalloid lorder raised, crenulate, 
persistent. 
Lichen. pezizoide:, Dicks. Crypt. 1,10. 
Lichen multiflorus, Lhrh, Crypt. 156. 
Lichen brunneus, Swartz Nov. Act. Upsal. 4,247; Engl. Bot. 1246, 
Psora nebulosa, Hoffm. Germ. 166. 
Psora brunnea, Hoffm,. Germ. 166. 
Parmelia brunnea, Achar. Meth. \86. 
Lecanora brunnea, Achar. Lich, 419. 
On the ground, and upon rotten mosses. 
XXI. 111. PLACODIUM. Acharius. Placodium. 
Thallus crustaceous, flat, expanded, adnate, uniform, 
the circumference figured, radiated, stellate, and slightly 
lobed ; apothecia saucershape, thick, adnate, sessile; pro- 
ligerous flake forming the centre, plano-convex, coloured, 
covering the apothecium above; inside cellularly stri- 
ated; lorder rather thick, formed of the thallus and the 
same colour, nearly free. | 
1. Placodium epigeum. Ground placodium. 
Crust plaited, wrinkled, whitish; circumference smooth, 
lobed ; apothecia blackish brown, growing rather conyex 
in the centre; thalloid border thin, not in the least cut. 
Lichen candicans, Dicks. Crypt. 3,15; Engl. Bot. 1178. 
Lichen epigeus, Persoon in Ulst. Ann. 7, 25. 
Parmelia epigea, Achar. Meth. 191. 
Lecanora epigea, Achar, Lich, 422, 
On the ground among the mosses on rocks, - 
