138 LECAlfO-LECIDEBI [bILIMBIA 



ClifWgg, Caeveland, Yorkshire; Ben Lawers, Pei-thshire ; Craig 

 Clrmy, Braemar, Aberdeenshire ; Letterfrack, Connemara, Galway. 



Var. alabastrites A. L. Sm. — Thallus effuse, thin, continuous, 

 minutely subgranulose, whitish or greenish-white. Apothecia 

 small, somewhat plane, whitish, colourless within, the margin 

 scarcely prominent, somewhat paler ; paraphyses not discrete ; 

 epithecium and hypothecium colourless ; spores fusiform, 3-5- 

 septate, 0,018-24 mm. long, 0,005-7 mm. thick; hymenial 

 gelatine bluish then, especially the asci, dark-wine-coloured with 

 iodine. — Lecidea alabastrites Nyl. in Flora Ixii. p. 207 (1879); 

 Cromb. in Grevillea viii. p. 29. 



Exsicc. Larb. lich. Hb. without number. 



Resembles the type in external appearance, differing only in the 

 somewhat more regular and larger spores, usually 3- or more-septate. 

 In the specimen examined from the original locality the apothecia are 

 somewhat yellow internally, but that is probably only a condition of 

 age or growth. 



Hah. On moss on trees. — B. M. Derryclare, Kylemore, Connemara, 

 Galway. 



10. B. Wsegelii Anzi in Flora xliv. p. 653 (1861).— ThaUus 

 effuse, thin, unequal, granulose or rimulose, greyish or whitish 

 (K — , CaCl — ). Apothecia minute, adnate or sessile, subconcave 

 or plane and thinly margined, then convex and immarginate, 

 leaden-brownish or flesh-coloured ; hypothecium colourless ; para- 

 physes coherent, leaden-brownish or dark at the apices ; spores 6-8 

 in the ascus, oblong, straight or slightly curved, simple or usually 

 3-septate, 0,014^25 mm. long, 0,004-6 mm. thick ; hymenial 

 gelatine bluish then sordid-tawny- wine-coloured with iodine.— 

 Biatora Nsegelii Hepp Flecht. Eur. n. 19 (1853). Lecidea 

 Nsegelii Stiz. in Nov. Act. Acad. Leop.-Carol. xxxiv. Abh. 2, 

 p. 19 (1867) ; Cromb. in Journ. Bot. xiv. p. 361 (1876) ; Leight. 

 Idch. Fl. ed. 3, p. 345. L. sphseroides f. vacillans Nyl. Lich. 

 Scand. p. 204 (1861) pro parte; Leight. Idch. Fl. p. 336. 



Exsicc. Larb. Lich. Hb. n. 175. 



When moistened the apothecia show a pale transparent disc, 

 surrounded by a darker ring. 



Sab. On the bark of trees. — Distr. Bare in S. England and W. 

 Ireland. — B. M. Near Erriff, Connemara, Galway. 



11. B. metamorphea Oliv. Exp. Syst. Lich. France ii. fasc. 1, 

 p. 40 (1900). — Thallus effuse, thin, leprose, greenish or greyish- 

 green. Apothecia small or snbmoderate, innate, somewhat plane, 

 at times difform or 2-confluent, the margin obliterated, whitish 

 or pale-flesh-coloured, concolorous within ; asci oblong, crowded ; 

 paraphyses none ; spores oblong or oblong-fusiform simple or 

 3-septate, 0,019-32 mm. long, 0,006-8 mm. thick; hymenial 

 gelatine scarcely tinged, the asci bluish then wine-reddish, with 

 iodine. — Lecidea metamorphea Xyl. in Act. Soc. Linn. Bord. 



