1 30 LECANO-LECIDEEI [bIATORINA 



34. B. lutosa Jatta Syll. Lich. Ital. p. 381 (1900). - Thallus 

 dirty-ochraceous, tartar(3ous, cracked-areolatc;, the areohi; i)lane, 

 sometimes minutely lobate (K — , CaCl — ). Apothecia black, 

 innate and iminarginate, then appressed, plane, with a thin 

 prominent margin ; hypothecium black ; paraphyses distinct, 

 thicker and blackish at the tips ; spores oblong, rather small, 

 0,010-12 mm. long, 0,005-G mm. thick. — Lecidea lutosa Mont, 

 ex Sch?Br. Enum. p. 116 (1850); Mudd Man. p. 202; Cromb. 

 Lich. Brit. p. 78; Leight. Lich. Fl. p. 311; ed. 3, p. 326. 

 Specimen not seen. 



Hah. On rocks in upland regions. — Distr. Somewhat rare. Eecorded 

 from Devon, Shropshire and Yorkshire. 



35. B. contristans A. L. Sm. — Thallus effuse, thin, granulose, 

 brown or dark-l)rown (K — , CaCl — ). Apothecia small, convex, 

 immarginate, black, dark within ; paraphyses coherent ; epithecium 

 blackish ; hypothecium sordid ; spores ellipsoid or oblong, 0,010-14 

 mm. long, 0,003-4 mm. thick ; hymenial gelatine bluish then 

 sordid-yellow with iodine. — Lecidea contristans Nyl. in Flora 

 xlviii. p. 354 (1865) ; Leight. in Ann. Mag. Nat. Hist. ser. 3, 

 xvii. p. 62 (1866) & Lich. Fl. p. 312; ed. 3, p. 329; Cromb. 

 Lich. Brit. p. 72. L. holomeloides Nyl. in Flora xlix. p. 369 



(1866) ; Leight. in Ann. Mag. Nat. Hist. ser. 3, xix. p. 330 



(1867) & Lich. Fl. p. 323; ed. 3, p. 333; Cromb. Lich. Brit, 

 p. 70. L. anomaloides i. denigrans Nyl. ex Cromb. Lich. Brit, 

 p. 70; Leight. Lich. Fl. p. 315; ed. 3, p. 330. 



Exsicc. Cromb. n. 177. 



The hypothecium varies from almost colourless in a thin section 

 to sordid -brownish ; the epithecium is greenish-black or sordid-brown. 



Hah. Overspreading decaying mosses on the ground or on rocks in 

 an alpine situation. — B. M. Plentiful near the summit of Ben Lawers, 

 Perthshire. 



36. B. confusior A. L. Sm. — Thallus effuse, dark-grey, thin, 

 cracked-areolate, the areolae small, almost plane. Apothecia 

 rather small, black, plane and obscurely margined, becoming 

 convex or almost globose and immarginate ; hypothecium colour- 

 less or yellowish ; paraphyses not well discrete, rather stout, 

 slightly thicker and blackish at the apices ; spores ellipsoid or 

 oblong, simple, then 1-septate, 0,010-17 mm. long, 0,004-6 mm. 

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

 Lecidea confusior Nyl. in Flora Ivii. p. 315 (1874); Cromb. in 

 Grevillea iii. p. 24 ; Leight. Lich. Fl. ed. 3, p. 298. 



Described by Nylander as having simple spores and as closely 

 allied to Lecidea confusula. Examination of the specimen in the 

 British Museum from the original locality shows that the spores are 

 septate when mature. 



Hah. On mica-schist rocks in a mountainous district. — B. M. Craig 

 Tulloch, Blair Athole, Perthshire (the only locality). 



