PL cell. aph. 4. CENOTHALAMEiE. 115.Lecidea. 475 
53. Lecidea polytropa . Many-coloured lecidea . 
Oms/ 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, Hojfm.Ge.rm. 196. 
Lichen varius maculiformis, Wahlenb. Lapp. 403. 
Lichen polytropus, Ehrh. Crypt. 294 ; Engl. Bot. 1264. 
Lecanora varia illusoria, Achar. Lick. 380. 
Lecidea Ehrhartiana polytropa, Achar. Licit. 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. 74 ; Lich, 209. 
Lepraria Florkeana, Achar. Lich. 663. 
Pulveraria albo-flava, Flurlce in Berl. Mag. 1807, 10. 
On stones and sand-stone rocks. 
55. Lecidea atro-Jlava. Black-and-yellow 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, Achar. 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-vellow. 
Lichen aurantiacus, Lightfoot Scot. 810. 
Verrucaria byssina, Hojfm. Germ. 197. 
Verrucaria aurantiaca, Iloffm. 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. 
