Pi. cell.aph. 4. CENOTHALAME. 115. Lecidea. 475 
53. Lecidea polytropa. Many-coloured lecidea. 
Crust nearly tartarlike, cracked in beds; apothecia flat- 
tish, lobed, bent, conglomerated, growing nearly globular, 
not bordered, yellowish flesh-colour. 
Lichen atro-virens, Wolf in Jacq. Coll. 2. 
Verrucaria polytropa, Hoffm. Germ. 196. 
Lichen varius maculiformis, Wahlenb. Lapp. 403. 
Lichen polytropus, Zhrh. Crypt. 294; Engl. Bot. 1264. 
Lecanora varia illusoria, Achar. Lich. 380. 
Lecidea Ehrhartiana polytropa, Achar. Lich. 192. 
Lecidea polytropa, Achar. Meth. 72. " 
54. Lecidea lucida. Shining lecidea. 
Crust leprous, flocky powdery, lemon-coloured ; apothecia 
plano-convex, slightly bordered, pale yellowish. 
Lichen lucidus, Achar. Prodr. 39; Engl. Bot. 1550. 
Lecidea lucida, Achar. Meth. 143; Lich, 209. 
Lepraria Florkeana, Achar. Lich. 663. 
Pulveraria albo-flava, Flurkein Berl, Mag. 1807, 10. 
On stones and sand-stone rocks. 
55. Lecidea atro-flava. Black-and-ye'low lecidea. 
Crust thin, spread, slightly granular, black; apothecia 
small, crowded, flat, yellow, border raised, not cut, paler. 
Lecidea atro-flava, Turner in Lin. Tr. 9,142: Achar. Syn. 49. 
Lichen atro-flavus, Engl. Bot. 2009, 
On flint stones. 
56. Lecidea luteo-alba. Yellow-and-white lecidea. 
Crust thin, smooth, white; apothecia crowded, growing 
convex, hemispherical, bordered, yelk-colour, inside white. 
Lichen luteo-aibus, Turner in Lin. Tr. 7, 92. 
Lecidea cinereo-fusca luteo-alba, -4char. Meth. Suppl. 12. 
Lecidea luteo-alba, Achar. Lich, 207. 
On the dead bark of trees, rarely on stones. 
57. Lecidea pyracea. Pear lecidea. 
Crust greyish, uneven, afterwards black; apothecia 
crowded, at last convex, scarcely bordered, yelk-yellow. 
Lichen aurantiacus, Lightfoot Scot. 810. 
Verrucaria byssina, Hoffm. Germ. 197. 
Verrucaria aurantiaca, Hoffm. Germ. 198. 
Parmelia cerina pyracea, Achar. Meth, 176. 
Parmelia vitellina byssina, Achar. Meth. 177. 
Lecidea luteo-alba papyracea, Achar. Lich. 207. 
On the roofs of houses, and lime-stone rocks. 
