116 LECANO-LECIDEEI [bIATORINA 



Lecanora glaucocamea Xyl. ia Flora Ix. p. 562 (1877) ; Leight. 

 lich. FI. ed. 3, p. 221. 



Exsicc. Larb. lich. Hb. nos. 135, 336. 



The apothecia m both type and variety are extremely minute and 

 look as if seated on small psde cushions of the thaUus, £bongh in the 

 variety the thaUine growth tends to disappear. 



Hab. On rocks. — Distr. Rare in the Channel Islands and W. 

 Ireland. — B. M, Eperquerie, Sark ; Glendalough, Connemara, Galway. 



10. B. littorella A. L. Sm. — Thallus effuse, very thin, 

 rimulose, glaucous-greem Apothecia small, plane, submarginate, 

 pale-yellow ; paraphyses slender ; epithecium and hypothecium 

 colourless; spores oblong, 0,008—12 mm. long, 0,0035—45 mm. 

 thick; hymenial gelatine bluish then wine-red with iodine. — 

 Leeidea littorella Nyl. in Flora Is. p. 229 (1877) ; Cromb. in 

 Grevillea vi. p. 19 ; Leight. Lich. Fl. ed. 3, p. 339. 



Differs from the preceding in the brighter coloured apothecia and 

 in the constantly smaller spores. 



Hab. On schistose rocks. — B. M. Lough Inagh, Connemara, 

 GsJway (the only locality). 



11. B. pilularis Koerb. Parerg. Lich. p. 136 (I860).— 

 ThaUus effuse, thin, finely granular, greyish-white or greenish 

 (K — , CaCl — ). Apothecia adnate, convex or almost globose, 

 immarginate, yellowish-flesh-coloured or brick-reddish ; hj-po- 

 thecium colourless ; paraphyses coherent, apices colourless ; 

 spores ellipsoid, 1-septate or sometimes simple, 0,011—17 mm. 

 long, 0,005-6 mm. thick ; hymenial gelatine bluish then violet 

 or wine-reddish with iodine. — Leeidea vemalis f. gubduplex Nyl. 

 Lich. Scand. p. 201 (1861) ; Cromb. Lich. Brit. p. 68 ; Leight. 

 Lich. Fl. p. 262 ; ed. 3, p. 259. L. pilularis Leight. Lich. Fl. 

 ed. 3, p. 341 (1879). L. subduplex Nyl. Lich. Fret. Behr. p. 50 

 (1888). 



Exsicc. Larb. Lich. Hb. nos. 231, 270. 



Chai-acteiized by the bright prominent sometimes almost 

 spherical apothecia which have caused it to be confused with 

 Bilimbia sphoeroidcs, Koerb. The apothecia are numerous and vary 

 in size, at times they are crowded and rather small. 



Hob. On mossy trunks of trees, rarely stems of shrubs in upland 

 wooded situations. — Distr. Scarce in England ; more frequent in the 

 S. Highlands of Scotland, and in N.W. Ireland. — B. M. Hatfield- 

 Peverel, Essex ; St. Leonard's Forest, Sussex ; Brandon, Suffolk ; 

 Ewenny, Bridgend, Glamorgan ; Frescoed, near Usk, Monmouthshire ; 

 Cader Idris, Merioneth ; Eievaulx and BUsdaJe, Yorkshire ; Woods, 

 near Forfar ; Barcaldine, Argyll ; Glen Lochay, KiUin, Ben Lawers 

 and Abeifeldy, Perthshire; Leenane, Derryclare and Glendalough, 

 Galway. 



12. B. subsphseroides A. L. Sm.^ — Thallus determinate, 

 thinnish, areolate-rimose, rugulose, whitish. Apothecia moderate 



