OF GREAT BRITAIN". 385 



Ireland :— Ballynakill ! Letterfrack ! Galway. Mr. Lwrbalestier. 



Wales : — Barmouth ! Cwm Idwall ! 



"Spoies .00325 to .004 in. long, by .001 to .00125 broad." (Mudd.) 

 "Spores .013— .019 mm. long, .045— .065 mm. broad." (Till.) "Spores .014 

 —20 mm. long, .005—7 mm. broad." (Nyl.) Spores .011 mm. long, .0025 

 mm. broad. 



377. L. leptostigma, Nyl. parasitic on a whitish rimulose 

 thallus, apothecia fusco-nigricant, plane, innate, small, gregarioit,s ; 

 spores 8, colourless, globose, or globoso-ellipsoid ; paraphyses mode- 

 rate, thickened upwards and dirty-yellow at the apices ; hypothe- 

 cium scarcely lutescent ; gelatina hymenea not tinged with 

 iodine. 



On micaceo-schistose rocks, rare. 1868. 



Stn :— Nyl. in Flora 1868. p. 344. Crombie En. 76. 



Geog. Distrib: — Europe. 



Bot. Prov :— 15. 



Scotland : — Ben Lawers. Rev. J. M. Crombie. 



" Spores .005—9 mm. diam." (Nyl.) 



378. L. imponens, Leight. thallus obsolete ; apothecia black, 

 minute, numerous, scattered, sessile, plane or subconcave, margin 

 thin, eventually obliterated, pale-bluish-ciner 'ascent within ; hy- 

 menium and hypothecium hyaline, pale-bluish-cinerascent ; excipulum 

 horny Uuish-cinerascent, externally darker ; paraphyses thick, co- 

 herent, apices nigricant ; spores 8, colourless, elliptical, simple ; 

 gelatina hymenea I dirty-fuscescent. 



Parasitic on Lecanora polytropa, (Ehrh.) rare. 1876. 



Stn :— Linn. Trans. 2d. ser. 1. 238. (1876.) 



Fig :— Linn. Trans. 1. c. t. 32. f. 7. 8. 



Bot. Prov :— 6. 



Wales : — Fort Hill ! near Fishguard, Pembrokeshire. (1876.) 



Spores .014 — .015 mm. long, .0055 mm. broad. 



379. L. episema, Nyl. no proper thallus ; apothecia parasitic, 

 black, aggregate, minute, margin obtuse, entire ; hypothecium 

 fuscous ; spores 8, colourless, ellipsoid or elongato-oblong, 1-sep- 

 tate ; paraphyses short and thick, with large globose fuliginous 

 apices ; I lutescent. 



Parasitic on Lecanora calcarea, not common. 1851. 



Stn :— Nyl. Coll. Gall. m. Pyr. p. 12. (1853.) Prodr. 125. 



Geog. Distrib :— France, Italy, Pyrenees. 



Bot. Prov:— 1... 7.. .19.. .26. 



England : — Near Yatton ! Somerset. Mr. Joshua. 



Ireland : — Kenmare Bay near Dunkerron. Dr. Taylor. Lough Corrib ! Mr. 

 Larbalestier. 



Wales :— Great Orme's Head ! (1851.) 



" Spores .010— 18 mm. long, .004—5 mm. broad." (Nyl.) Spores .013 mm. 

 long, .005 mm. broad. 



380. L. cristata, Leight. no proper thallus ; apothecia parasitic, 

 black, very minute, solitary or more generally clustered, or in 

 narrow Jlexuose lines like a hypothallus, concave, margin thick and 

 obtuse ; hypothecium black, carbonaceous ; spores 8, colourless, 

 lineari-oblong, faintly 1-septate, very minute. 



Parasitic on the thallus of Lecanora sub-carnea, rare. 1856. 



Geog. Distrib :— Europe. 

 Bot. Prov :— 7. 



AA 



