116 LECANO-LECIDEEI [bIATORINA 



Lecanora glaucocarnca Nyl. in Flora Ix. p. 562 (1877); Leight. 

 Lich. Fl. ed. 3, p. 221. 



JExfiicc. Larb. Lich. Hb. nos. 135, 336. 



The apothecia in both t} pe and variety are extremely minute and 

 look as if seated on small pale cushions of the thallus, though in the 

 variety the thalline growth tends to disapjiear. 



Hab. On rocks. — Distr. Kare 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 -green. 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. — 

 Lecidea littorella Nyl. in Flora Ix. p. 229 (1877) ; Crorab. in 

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



DifTers from the preceding in the brighter coloured apothecia and 

 in the constantly smaller spores. 



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

 Galway (the only locality). 



11. B. pilularis Koerb. Parerg. Lich. p. 136 (1860). — 

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

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

 immarginate, yellowish-flesh-coloured or brick-reddish ; hypo- 

 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. — Lecidea vernalis f. subduplex 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. suhduplex Nyl. Lich. Fret. Behr. p. 50 

 (1888). 



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



Characterized by the bright prominent sometimes almost 

 spherical apothecia Avhich have caused it to be confused with 

 Bilimbia sphceroides, Koerb. The apothecia are numerous and vary 

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



Hab. 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 ; Rievaulx and Bilsdale, Yorkshire ; Woods, 

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

 and Aberfeldy, Perthshire; Leenane, Derryclare and Glendalough, 

 Galway. 



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

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



