470 115. Lecidea. 4, CENOTHALAME. PI. cell. aph. 
31. Lecidea incana. Silver-grey lecidea. 
Crust spreading, leprous floury, soft, uneven light green- 
ish grey; apothecia scattered, sessile, brownish; border 
not cut, paler. 
Byssus pulverulenta incana, farine instar strata, Dillen in Raii Syn. 
No 
Byssus incana, Lin. S. P. 1639. 
Lichen incanus, Achar. Prod. 1; Engl. Bot. 1683. 
Palveraria incana, Florkein Berl. Mag. 1807,7. 
Lepraria incana, Achar, Meth. 4; Lich, 665. 
On the bark of trees, on mosses and the ground, 
32. Lecidea vernalis. Springtide lecidea. 
Crust very thin, greenish white; apothecia slightly bor- 
dered, afterwards nearly globular, crowded, conglomerated, 
rusty flesh-colour. 
Lichen vernalis, Lin. Syst. Nat. ed. 12,3,234; Engl. Bot. 845. 
Lecidea vernalis, dchar. Meth. 68; Lich. 198, excl. var. £. 
On mosses, which it encrusts. 
33. Lecidea sulphurea. Brimstone lecidea. 
Crust tartarlike, cracked, broken, uneven, smooth, pale 
brimstone-colour ; apothecia adnate, flat, scarcely bordered, 
brown and hoary, paler in the circumference, grow irre- 
gular and convex. 
Lichen sulphureus, Achar. Prod. 58; Engl. Bot. 1186. 
Verrucaria sulphurea, Hoffm. Germ. 196. - 
Lecidea sulphurea, WVahlenb. Lapp. ATT. 
Parmelia sulphurea, Achar, Meth. 159. 
Lecanora sulphurea, Achar. Lich. 399. 
On rocks and stones. 
34. Lecidea orosthea. Mountain lecidea. 
Crust cracked in beds, uneven, rather powdery, brim- 
stone yellow; apothecia small, sessile, slightly convex, not 
bordered, nearly the same colour, grow hemispherical, pale 
brownish, paler towards the bottom. 
Lichen orostheus, 4char. Prod. 38; Engl, Bot. 1549. 
Lecidea orosthea, Achar. Meth. 12. 
Lecanora orosthea, Achar. Lich. 400. 
On rocks. 
35. Lecidea decolorans. Bleached lecidea. 
Crust granular, greyish white, granules falling into pow- 
der; apotkecia flattish, vermillion-red, flesh-grey, livid and 
brown, border raised, paler, grows bent. 
