OF GREAT BRITAIN. 247 



mogcmia very minute, punctif orm or subverrucseform, slightly prominent, black, 

 sparingly scattered. Spermatia straight, cylindrical, .00075 to .001 in. long by 

 .00012 in. broad." (Mudd.) 



18. L. fuliginosa. Tayl. dark-brown or fusco-rufescent, glebuloso- 

 squamulose, pulvinulo-conglomerate ; (K — C — .) hypothallus nigro- 

 fiiscous, subbyssoid ; apothecia black, small, solitary or aggregate, 

 plano-convex, margin thin, soon obliterated, internally blackish ; 

 hypothecium brownish-black, thick ; spores 8, colourless, ellipsoid, 

 simple, minute. 



On rocks, frequent. 1836. 



Stn :— Tayl. ! PI. Hib. 2. 131. (1836.) L. confusa, Nyl. Scand. 216. Mudd 

 Man. 208. 



Exs :— Leight. 305. 



Geog. Distkib :— Sweden, Norway. 



Bot. Pbov:— 5...7...15...19...26. 



England : — Caer Uaradoc ! High Rock ! near Bridgnorth, Shropshire. 



Scotland : — Crianlarich. Dr. Holl. 



Ireland: — Dunkerron; Oarig Mountains! co. Kerry. Dr Taylor. (1836.) 

 Glengariff ; Dunmanway ! Mr. Carroll, near Kylemore ! Lettermore ! Dough- 

 ruagh Mountain ! Galway. Mr. Larbalestier. 



Wales : — Between 4 & 5 milestone between Barmouth and Dolgelley ! Rev. 

 T. Salwey, Barmouth ! Cader Idris ! Llyn Geirionydd ! Glyder Vach ! 



Paraphyses pale-yellowish-brown, coherent, apices brownish-black. " Spores 

 0.008—0.010 mm. long, 0.004— 6 mm. broad." (Nyl.) "0.007—10 mm. long, 

 0.004—6 mm. broad." (T. M. Fr.) ".002 to .00275 in. long by .001 in. broad." 

 (Mudd.) .007 mm. long, .004 — .005 mm. broad. Ascilblue. "Spermatia 

 filiform, arcuate." (Nyl.) 



19. L. botryiza, Nyl. cinereo-virescent, squamuloso-pidverulenh 

 thin, (K— C — ) ; apothecia pale-brown to dark-brown, small, simple, 

 or aggregate, prominent, almost sphcerical ; hypothecium thick, dense 

 brownisJMack ; spores S, colourless, elliptical, simple ; hymeniwm 

 colourless, pellucid ; paraphyses not discrete, apices colourless ; 

 gelatina hymenea I cserulescent then vinous-red. 



On alpine rocks, rare. 1871. 



Syn :— Stirton in Grevillea 2. p. 71. 



Bot. Pkov :— 15. 



Scotland :— Ben Voirlich. Dr. Stirton. (1871.) 



" Spores .008mm. long, .004 mm. broad.'' (Stirt.) 



20. L. endomelarna, Leight. pale cinereo-virescent, opake, gle- 

 bulose, glebulos scattered or areolato-diffract, thick, convex, composed 

 of minute, conglomerate, convex, roundish or sub-lobate, subfurfura- 

 ceous squamules (K pale-yellow C pale-yellow) ; apothecia violet- 

 black, rather large, innato-sessile, at first plane with a thickish mar- 

 gin, afterwards very convex, and immarginate, slightly pruinose, 

 concolorous within ; hypothecium very thick, nigro-fuscous, with a 

 paler-brown enclosed intermediate stratum; spores 8, colourless, 

 small, elongato-ellipsoid, simple. 



On stone walls, rare. 1874. 



Stn : — Leight. in Linn. Trans, ser. 2. 1. p. 239. , 



Fig :— Linn. Trans. 1. c. t. 32. f. 13 & 14. 



Bot. Peov : — 7. 



Wales: — Trefriw! near Llanrwst. (1874.) Moel-y-gest near Tremadoc! 



A very distinct species. Hymenium palish-blue. I dense-violet. Para- 

 physes cohserent, apices fuscescent. Spores ,0115— ,0125 mm, long, .0045 — .005 

 mm. broad, 



