452 LICHEE A CEI. [LECANOBA 



thin, black. Apothecia small or moderate, appressed, plane or at 

 length somewhat convex, brownish-black or badious-brown, the 

 thalline margin entire or slightly crenulate ; spores fusiformi- 

 ellipsoid, 0,009-15 mm. long, 0,004-6 mm. thick ; paraphyses 

 robust, brownish at the apices. Mudd, Man. p. 144, t. 2. f. 50 ; 

 Cromb. Lich. Brit. p. 53 ; Leight. Lich. Fl. p. 212, ed. 3, p. 198. 

 Rinodina badia, Gray, Nat. Arr. i. p. 450. Lichen badius, Pers, 

 Usfc. Ann. Bot. vii. (1794) p. 27. Brit. Exs. : Leight. n. 206 ; 

 Mudd, n. 110 ; Larb. Lich. Hb. n. 334. 



A well-marked spec ; es easily recognized by the colour of the thallus 

 and of the apothecia. It spreads extensively over the substratum, and i* 

 always well fertile. In alpine situations the apothecia have the thallim 

 margin more or less flexuose. The spermogones are frequent, with sper- 

 matia 0,007-0,010 mm. long, 0,001 mm. thick. Very singularly the plam 

 was overlooked by our older authors, though in Sowerbv's herbarium il 

 appears s. n. Lichen squamulosus from Teesdale (Lecanora squamulosc 

 Tayl. in Mack. Fl. Hib. ii. p. 109). 



Hab. On rocks and boulders from maritime to alpine tracts. Disir 

 General and common in most parts of Great Britain and Ireland ; rare ir 

 the Channel Islands. B. M. : Noirmont, Island of Jersey ; Island o: 

 Guernsey. Bolt Head, S. Devon : near Penzance, Cornwall ; Bardor 

 Hill, Leicestershire ; Malvern, Worcestershire ; near Bnxton, Derbyshire 

 Long Mynd. Shropshire; Barmouth and Dolgelly, Merionethshire ; Llyr 

 Geirionydd, Carnarvon ; Roseberry, Cleveland, Yorkshire ; Teesdale anc 

 near Eglestone, Durham ; Blacklot and Stavely Head, Westmoreland 

 Ennerdale, Cumberland. New Galloway, Kirkcudbrightshire ; Appin 

 Argyleshire ; Ben Lawers, Perthshire ; Nigg and Portlethen, Kinoar 

 dineshire ; Cairn Turc and Morrone, Braemar, Aberdeenshire ; Glen Nevis 

 Inverness-shire. Mount Leinster, co. Carlow ; Kylemore Castle, co 

 Galway ; Lurgedon Mt. and near Carnlough, co. Antrim. 



Var. /3. cinerascens Nyl. Lich. Scand. (1861) p. 170. Thallui 

 paler, greyish, with the thalline margin of the apothecia conco- 

 lorous : otherwise as in the type. Cromb. Lich. Brit. p. 54 

 Leight. Lich. Fl. p. 213, ed. 3, p. 198. 



Differs only in colour ; but this is so marked as to entitle it, in th< 

 absence of intermediate states, to rank as a good variety. 



Hab. On shady schistose rocks and walls in maritime and moun 

 tainous districts. Distr. Local in S. Wales, the Central Grampians am 

 N.E. Scotland. B. M. : Cader Idris, Merionethshire. Craig Tulloch 

 Blair Athole, Perthshire ; Portlethen, Kincardineshire. 



Subsp. L. picea Nyl. Flora, 1868, p. 478. Thallus and apotheci; 

 pitch-black, shining; spores oblong, 0,007-11 mm. long, 0,004-' 

 mm. thick. Cromb. Journ. Bot. 1869, p. 108; Lich. Brit. p. 54. 

 L. badia form picea, Leight. Lich. Fl. p. 214, ed. 3, p. 199. 



Characterized by the colour of the thallus and of the apothecia, am 

 more especially by the smaller spores. This latter character keeps i 

 distinct from darker states of the type with which it might be con 



