— 78 — 



^S. Bl, eîpeuiiialbata Mûll. Arg., Lecidea circamalbata Del. 

 Flore d'Egypte, p. 157, t. 59, fig. 8, et Florse aegypt. lUustr., p. 32, 

 n. 986. Eximie affinis est Blasteniœ Agardhianse Mûll. Arg. Enum. 

 Lich. de Genève, p. 63 , s Pyrenodesmiœ Agardhianaî Mass. Munogr. 

 Blast. p. 120, sed bene dislinguitur thallo cum saxo conferruminato 

 flavicanti-albo v. argillaceo-albo nec coerulescente margineque zona 

 lata all)ida cincto ; partes interioreset apothecia quadrant, lamina su - 

 perne fuscescens v. coeruleo-fuscescens , sporee orculiformes 14-17 ^ 

 longœ, 7-10 pi latse. — A Callopismate aegyptiaco v. lecideiuo, cui ha- 

 bitu accedit, difïert thallo subnuUo v. potius cum elernentis substrat! 

 commixto, et apotheciis jam ab origine lecideinis, margine multo te- 

 nuiore prseditis; discus ater caeterum nudus autmodice ca'isio-pruino- 

 sus et tum satis illum « Sarcogynes pruinosœ « imitans. — Habitat 

 ad calcem nummiliticam in vallée d'Egarement : Delile ( hb. Deles- 

 sert). 



46. Bl. -iiielanocarpa Mûll. Arg., thallus crassiusculus , lac- 

 teus V. nonnihil roerulescenti-lacteus, kevigatus, mox rimulosus v. 

 demum rimoso-diflVactus, margine breviter et spurie efligurato-sub- 

 radians, imo margine lineola hypothallina coerulescente cinctus, goni- 

 dia globosa, majuscula, cire. 18 ^ lata (subinde intus modice compo- 

 sita); apothecia 1/3-2/3 mm. lata, ab origine atra, opaca, adpressav. 

 subadpressa, planiuscula, tenuiter marginata et extus margine thallino 

 tenui nano cincta; epithecium olivaceo-v. fumoso-nigricans, crassius- 

 culum, paraphyses siperne incrassatae et articulatœ, subfacile segre- 

 gandae, lamina et hypothecium liyalina, asci obovoideo-cylindrici , 

 apice pachydermei, 8-spori ; spora} (hyalinaî et orculiformes) 11-14 p. 

 longée, 6-7 [a lat». — JuxtaBlasteniam rejectam Th. Fries Scand. 1 , 

 p. 396 et « Lecanoram leucomelana « Krplh. Lich. Wawra » 34 et 

 c( Lecanoram Kurzii » NyL Lich. bonguel, n. 3 inserenda est, cœte- 

 rum quoad thallum plane cum Blastenia Lallavei Mass. quadrat. — 

 Habitat in desertis calcareis aegyptiacis frequentissima, in Wadi Che- 

 rese Aegypti mediœ, in Wadi Na-umieh superiore, in Wadi Nehieh , 

 et in Wadi Bisched prope Cairo, nec non in Gebel Cheschen in Wadi 

 Gendel, undique ab egreg. D>" Schweinf. lecta. 



|3 bicolor MiïU. Arg , omnia ut in forma genuina speciei , 



sed marge pioprius apotheciorum distincte obscure ferrugineus, ab 

 accessorio thallino distinclius solutus. — Habitat cum priecedente in 

 Wadi Na-umieh superiore, et in summo Gebel Cheschen inter Cairo 

 et Sues : Schweinf. 



— — 7 versieolor Mùll. Arg., apothecia juvcnilia crasse 

 albo-marginata , disco pallide nigro-fuscescente, evolulorum inargo 

 accessorius sensim sensinuiue magis evanesccns et proprio nigi'o sul)s- 

 litutus, apothecia demum tota nigra. — Varietas hiec formam genui- 

 nam cum var leucolomate, quani primo pro specic distinctissima, 

 affini Callopismati pa//îrf/orî ( Lecanorœ pallidiori Nyl. Prodr. Lich. 

 Nov. Graiiat. 80, p. 29, Krplh. Novarra, p. 110) habui , optime con- 



