242 
simplicibus vel 1—5-septatis) ad latera inferiora (vel subocculta) j 
rupium. 
1. — Stirps Lecidex lenticularis, thallo tenut obscuro fys vix Mö . "a 
incoloribus parvis 1-septatis (vel simplicibus), paraphy gro-clavatis. 
Species 107. 
107. I. lentieularis Ach. Syn. p. 28; L. stigmatea var. 
mierospis Ach. Syn. p. 16; L. lithyrga Ach. Syn. p. 25; I. 
Gagei Hook. E. Fl. p. 177, Tayl. Hib. p. 120, E. Bot. tv" 
2581; L. prominula Borr. in E. Bot. suppl. t 2687, f. 1, Tay. 
Hib. p. 119; L. chalybeia Borr. ibid. f. 2, Scher. Enum. P 
417, Nyl. Prodr. p. 136. ; 
Thallus umbrinus vel nigricans vel cinereo-fuscescens tenuis 
indeterminatus vel tenuissimus evanescens; apothecia nigra 
(vel interdum fusco-nigra) parva (latit. circa 0,3 millim.) plana - 
marginata, intus nigrescentia vel medio cinerascentia; sporre 
oblonge tenuiter 1-septate, longit. 0,007—0,011, crassit. 
0,003—4 millim., paraphyses mediocres vel erassiuscul&e apice 
eximie fusconigro-clavate, hypothecium infuscatum aut incolor. 
Gelatina hymenea iodo ccerulescens. dj 
Supra lapides gneissaceos in Alandia et porphyrios in Hog- - 
land (Edwin Nylander). Ad rupes calcareas et Bree 4 
Suecia sat raro, ut videtur. 
Var. nigro-clavata (L. nigro-clavata NyYl. in Bot. Notis. 1853, p.1 
differens thallo spe parum vel vix visibili, sporis oblongis Fö 
bus, clava paraphysium sepius adhuc NV corticola. Forsan non 
flat varielsk ng lenticularis. BE Scandinavia mihi haud visa. In 
Gallia, Germania et Rossia occurrit; quoque in Algeria. — In lenticular! 
AR typica koder ium incolor et igitur He AR intus tota 
albida. Forte melius inter Biatoras disponatur. 
m. — Stirps Lecidex ostreate, sporis parvis simplicibus oblongis. Corticole, d 
lignicole, terrestres vel muscicole, unica sazxicola. — Species 108—114.- 
103. IL. ostreata (Hffm.) Scher. Enum. p. 97; Parmelia 
ostreata Fr. L. E. p. 94; Lecidea scalaris Ach. Meth. p: 78, 
L. U. p. 214, Syn. p. 52, Whinb. Lapp. p. 478. | 
Thallus cervinus vel cervino-pallidus väl cervino-albidus 
squamulosus, squamulis imbricatis adscendentibus (vel interdum 
