OF GREAT BRITAIN. 



289 



minutely rimuloso-areolate, areolce plane or plano-convex, smooth, 

 somewhat evanescent, (K yellow then red) ; hypothallus black ; 

 apothecia numerous, scattered or aggregate, adnate, plane, opake, 

 black, soft, velvety, margin very thick, subtumid, prominent, 

 flexuose ; hypothecium pale or more or less rufescent, with short 

 lateral black excipulum ; epithecium nigricant ; thalamium pale ; 

 spores 8, colourless, elliptical, simple, binucleolate. 

 On alpine rocks, frequent. 



Stn :— Flic, in Smmrf. Suppl. Lapp. 149. (1826.) Nyl. Soand. 226. 



Exb :— Fellm. 189. 



Geog. Distebb : — E. Lapland, Scandinavia, Hungary, Sweden, France. 



Bot. Pbov:— 5...7...15...19. 



England : — Devil's Chair ! Stiperatones, Shropshire. 



Scotland :— Morrone ; Ben-na-boord ; Ben Cruachan ; Ben Lawers ; Ben 

 Nevis ; Braemar. Rev. J. M. Crombie. 



Ireland : — Mangerton. Mr. Carroll. 



Wales :— Cader Idris, north escarpment ! Craig Breidden ! Nevin ! Eglwyseg 

 rocks ! Llyn Geirionydd ! Barmouth ! 



"Spores .009— .014 mm. long, .004—7 mm. broad." Nyl. "Spores .009— 

 12 mm. long, .005 mm. broad. I blue then discoloured, asci violet-red or 

 fulvescent. Spermatia shortly acicular, straight or slightly curved .009 — 12 

 mm. long." (T. M. tries.) Medulla I blue. Spores .015 mm. long, .005 mm. 

 broad. 



Var. declinans, Nyl. nearly ecrustaceous ; hypothecium fuscous 

 or fasco-vufescent, (K yellow then red). 



Stn :— Nyl. Scand. 226. (1861.) Crombie Enum. 81. Leight. in Ann. and Mag. 

 Nat. Hist. June, 1867. 

 Exs:— Fellm. 187. 188. Rabh. 844. 

 Geog. Distrib : — E. Lapland, Scandinavia. 

 Bot. Prov:— 7. .15.. .23. 

 Scotland ; — Castleton, Braemar. Adm. Jones. 

 Ireland : — Killiney Hill. Dr Moore. 

 Wales : — Cader Idris, north escarpment ! Pass of Llanberis ! ., 



133. L. marginata, Schser. pale-apricot-colour, tartareous, ma- 

 cular, diffuse, rimuloso-areolato-diffract, areolse plane, unequal, 

 (K yellow) ; apothecia black, sessile, plane or tumid, margin thick, 

 prominent, sometimes flexuose, at length obliterated ; hypothecium 

 pale ; spores 8, colourless, oblong, simple, I blue. 



On alpine rocks, rare. 1868. 



Stn :— Schaer. Enum. 115. (1850.) Crombie Enum. 83. 



Exs :— Schaer. 189. 



Geog. DiSTRra : — Switzerland. 



Bot. Prov: — 2.. .15. 



England : — Isle of Wight. Dr. Boll. 



Scotland : — Ben Lawers. Adm. Jones. (1868.) 



Spores .015—0115 mm. long, .0065— .0075 mm. broad. 



134. L. lapicida, Fr. cinerascent, tartareous, thin, areolato- 

 rimoso-diffract, areola flat or plane, (K — C — ) ; hypothallus black; 

 apothecia numerous, small, scattered or aggregate, plane, opake, 

 raven-black, soft, velvety, margin thin, obtuse, slightly prominent, 

 flexuose ; hypothecium pale, with a thin blackish wavy line subten- 

 ding the sides -and base ; epithecium nigricant ; thalamium pale 

 and yellowish ; spores 8, colourless, narrowly oblong, simple, often 

 with 2 nuclei ; paraphyses distinct, apices nigricant. 



On alpine rocks, frequent. 



U 



