94 LECANO-LECIDEKI [lKCIDKA 



ir>9. L. aniptiza Stirlon in Trans. Glasofow 8f)c. Nat. 1875, 

 p. 89. — Thallus blackish-grey or green, granular, thin. Apothecia 

 black, small, prominent, convex, immarginate, papillose (as it were 

 glomerate), entirely blackish-grey within ; paraphyses irregular, 

 indistinct, slender and branching ; spores oblong-cylindrical, 

 0,007-11 mm. long, 0,0025-30 mm. thick; hymenial gelatine 

 bright-blue with iodine. — Leight. Lich. Fl. ed. 3, p. 277. Speci- 

 men not seen. 



Hah. On decorticated wood. Collected by Dr. Stirton near Killie- 

 crankie, Perthshire. 



170. L. furvella Nyl. in Mudd Man. p. 207 (1861).— Thallus 

 effuse, thickish, granulose-furfuraceous, areolate-diffract, dark- 

 olive-brown or blackish, opaque (K — , CaCl — ) ; hypothallus 

 blackish. Apothecia small, appressed, plane, wrinkled, margined, 

 black, the margin thin, flexuose, persistent ; paraphyses coherent, 

 bluish-black at the apices ; hypothecium dark-brown ; spores 

 ellipsoid, 0,012-17 mm. long, 0,006-8 mm. thick ; hymenial gela- 

 tine bluish then wine-red with iodine. — Cromb. Lich. Brit. p. 84 ; 

 Leight. Lich. Fl. p. 272 ; ed. 3, p. 272. 



A well-marked species, having much the appearance of Pannularia 

 nigra. The soft somewhat isidioid thallus is loosely adherent to the 

 substratum. The more or less scattered apothecia are usually as if 

 plicate, though here and there quite regular. 



Hah. On schistose rocks and walls in mountainous regions. — 

 Distr. — Local, though not unfrequent where it occurs, among the 

 Grampians, Scotland. — B. M. Ben Lawers, Craig Tulloch, Glen 

 Fender and Ben Vrackie, Perthshire ; Morrone and Glen Callater, 

 Braemar, Aberdeenshire. 



171. L. asperella Stirton in Trans. Glasgow Soc. Nat. 1875, 

 p. 87. — Thallus black, thickish, granular-furfuraceous cracked- 

 areolate, determinate. Apothecia black, small, ndnate, plane, 

 margin thin, shining ; hymenium in a thin section bluish-green ; 

 hypothecium colourless, subtended by a brownish-black excipulum; 

 paraphyses not very distinct, the apices clavate, bluish ; spores 

 oblong-ellipsoid, 0,007-10 mm. long, 0,004-5 mm. thick ; hymenial 

 gelatine intensely and persistently blue with iodine. — Leight. 

 Lich. Fl. ed. 3, p. 286. Specimen not seen. 



Hah. On rocks. Collected by Dr. Stirton at Ben-y-gloe, Perthshke, 

 and regarded by him as very closely allied to L. furvella. 



172. L. insularis Nyl. in Bot. Not. 1852, p. 177.— Thallus 

 determinate, verrucose-unequal, areolate-diffract, moderately 

 thick ; the areolae verrucose-plicate, somewhat shining, brownish- 

 grey or tawny-brown (K-^ yellow, CaCl — ) ; hypothallus blackish. 

 Apothecia small, appressed, plane, black, margined, the margin 

 thin, prominent, flexuose ; paraphyses concrete, dark -brown at 

 the apices ; hypothecium brownish -black ; spores ellipsoid, 

 0,010-12 mm. long, 0,005-6 mm. thick; hymenial gelatine bluish 



