198 THE LICHEN-FLORA 



62. L. Prevostii, (Fr.) white, cinerascent or fleshy-white, con- 

 tiguous, often crustaceous; apothecia minute, immersed in 

 foveoli, subrotund or variously difformed, concave, roseo-incarnate 

 at length obscurate, proper margin connivent, distinct from the 

 thalline margin ; hypothecium colourless ; paraphyses gelatinoso- 

 concrete; spores 8, colourless, ellipsoid, simple; gelatina hy- 

 menea I blue then subvinous. (K — C — ). 



On calcareous rocks, not common. 



SYN:-FriesL. E. 197. (1831.) NyL Scand. 189. T. Fr. Scand. 289. 



Fig :— Leight. Aug. Lich. 1. 15 f. 1. 



Exs :— M. &N. 848. Mass. 330. 



Geog. Distrib : — Sweden, Germany, Italy, Switzerland, France. 



Bot. Prov :— 8...15. 



England : — Cheddar ! Mr. Borrer. 



Scotland : — Craig Guie. Braemar. Bee. J. M. Orombze. 



The minute gonidia, as well as other characters, separate this from L. epulotica 

 which has enormous concatenate gonidia, four times larger, and which with L. 

 chrysophana, Korb. rhodopis, Smrf t. odora, Ach. suaveolens, Ach. and others. 

 Tli. Fries Scand. p. 273 includes in a distinct genus Ionaspis, Th. Fr. Spores 

 .012— .013 mm. long, .008 mm. broad. "Spores .014—22 mm. long, .009—11 

 mm. broad." (T. M. Fr.) 



63. L. hadia, Ach. olivaceo-fuscous or badio-fuscescent or fusco- 

 cinerascent, shining, granulato-areolate ; apothecia oppressed, nu- 

 merous, often crowded, badio-fuscous or fuscous-black, shining, 

 thalline margin entire or crenulate; spores 8, colourless, fusi- 

 formi-ellipsoid, simple ; (thallus K — C — .) 



On mountain rocks, frequent. 



Stn :— Ach. Syn. 154. (1817.) Nyl. Scand. 170. Mudd Man. 144. 



Fig:— Hepp Sporent. 20. f. 181. 



Exs :— NyL 42. Hepp 181. Fellm. 136. Anzi It. S. 167. 



Geog. Distrdj : — Europe, generally. 



Bot. Prov :— 1...5...7, 8.. .10, 11...15...18...26...30, 31. 



England :— Ingleborough. Dr. Carrimgton. Battersby Moor, Ayton Moor ; 

 Kildale Moor 1 Mr. Mudd. Charnwood Forest ! Bardon Hill ! Leicestershire. 

 Ben. A. Bloxam. near Eglestone. Durham. Bev. J. Harriman. Torquay, Devon, 

 Mr. Parfitt. Stannor Hill ! Herefordshire ; Devil's Mouth ! Long Mynd ; Caer 

 Caradoc ! Bodbury Bing ! near Church Stretton ; Abdon Burf ! Stiperstones ! 

 Shropshire. 



Scotland :— Garrynahine, Lewis. Dr. Lindsay. Ben Lawers ; Coast of Kin- 

 cardine ; Cairn Turk, Braemar. Bee. J. M. Crombie. 



Ireland :— Near Belfast. Mr. Templeton. Lurgedon Mountain, co. Antrim. 

 Dr. Moore. Mount Leinster, Carlow, and near Carnlough, co. Antrim. Adm. 

 Jones. Doughruagh Mountain ! Galway. Mr. Larbalestier. 



Wales : — Snowdon, Llanberis ascent ! Barmouth ! Cader Idris ! Cwm 

 Bochlwyd ! Cwm Cywion ! Llyn Cwlyd ! Llyn Geirionydd ! Craig Aderyn ! 



Channel Islands :— Jersey ; Guernsey. Mr. Larbalestier. 



" Spores .00225 in. long, by .0005 in. broad, t. 2. f. 50." (Mudd.) " Spores 

 .009— .015 mm. long, .004-- 6 mm. broad." (Nyl.) "Spores .016-16 mm. 

 long, .004 — 6 mm broad. Spermatia acicular, straight." (T. M. Fr.) 



forma cinerascens, NyL paler, cinerascent. 

 On mountain rocks, frequent. 



Stn :— Nyl. Scand. 170. (1861.) 



Exs :— Anzi Etr. 18. 



Geog. Distrib :— Norway. 



Bot. Prov:— 7. ..15. 



Scotland : — Kincardine. Bee. J. M. Orombie. 



Wales :— Cader Idris ! Crib Coch ! Snowdon ; Aran Mowddwy ! 



Var. atriseda, Fr. brumeo-fuscous, granulato-areolate, granules 



