172 LKC^ANO-LKCTDREI [bUKLLTA 



Strotton, SJiropsliirc ; Easby, Lounsdalo and ]^n,ttorsl)y, Cleveland, 

 Yorkshire; I. of Ijisniore and Barcaldino, Appin, Arj^yll ; Lou^di 

 Feagh, Conneniara, Gal way. 



14. B. succedens A. L. Sm. — ThalluH efluse, thin, ^n-anulate, 

 unecjual or subareoJato, whitish. Apothocia subniodorate, mar- 

 gined, brownish-black ; paraphyse.s moderate, jointed, thickened 

 and brownish at the apices ; hypothecium browji or reddish- 

 brown ; spores ellipsoid, simple or 1-septate, blackish, 0,011- 

 14 mm, long, 0,0045-0,0055 mm. thick; hymenial gelatine 

 bluish then wine-red with iodine. — Lecidea succedens Nyl. in 

 Flora xlix. p. 372 (1866); Leight. in Ann. Mag. Nat. Hist. 

 ser. 3, xix. p. 322 (1867) & Lich. Fl. p. 308; ed. 3, p. 322; 

 Carroll in Journ. Bot. v. p. 258 (1867); Cromb. Lich. Brit, 

 p. 89. Specimen not seen. 



Closely allied with L. secedens Nyl., a corticolous species of N.W. 

 France. 



Hab. On a mica-schist rock on one of the S. Grampians (Ben 

 Lawers, Perthshire). 



15. B. verruciilosa Mudd Man. p. 215 (1861) (excl. var. 

 spuria). — Thallus effuse, minutely ci'acked-areolate, the areolie 

 scattered or contiguous, plane or slightly convex, smooth, 

 yellowish-green (K — , CaCl + orange-red, medulla I — ) ; hypo- 

 thallus blackish, often little visible. Apothecia black, minute, 

 innate, almost plane, thinly margined, becoming convex and 

 immarginate ; hypothecium dull-brown ; paraphyses coherent, 

 brown at the clavate apices ; spores oblong, sometimes slightly 

 constricted at the septum, brown, 0,012-16 mm. long, 0,006-9 mm. 

 thick ; hymenial gelatine deep-blue with iodine. — J>. ocellata 

 Koerb. Syst. Lich. Germ. p. 224 (1855). Lichen verruculosus 

 Borr. in Engl. Bot. t. 2317 (1812). Lecidea verrucidosa Borr. 

 ex Hook, in Sm. Engl. Fl. v. p. 174 (1833); Leight. Lich. Fl. 

 p. 303 ; ed. 3, p. 315. L. ocellata Floerke ex Fiot. in Flora xi. 

 p. 691 (1828) ; Cromb. in Journ. Bot. vii. p. 108 (1869) & 

 Lich. Brit. p. 93. L. haleida Tayl. in Lond. Journ. Bot. vi.. 

 p. 150 (1847). 



Exsicc. Mudd n. 186. 



Differs from B. spuria in the colour of the thallus and in the 

 larger spores. The hypothecium in both these species is brown in 

 thick section, but paler in thin section. 



Hah, On rocks and flints. — Distr. Somewhat rare in maritime and 

 upland regions. -B. M. Lydd Beach, Kent; Carlton Bank, Cleveland, 

 Yorkshire ; Muggleswick Hill, Durham ; Lamplugh, Cumberland ; 

 Craig TuUoch, Blair Athole, Perthshire ; near Cork ; Blackwater 

 Bridge, Loucrh Caragh and Dunkerron, Kerry. 



Subsp. pi'fBponens A. L. Sm. — Thallus determinate, w^arted- 

 areolate or thinly granular, yellowish-green. Apothecia small, 



