OF GREAT BRITAIN. 



283 



Stn :— Nylander in Flora 1872. p. 359. 



Bot. Pbov :— 15. 



Scotland :— Craig Tulloch, Blair Athole. Bev. J. M. Crombie. (1871. ) 



"Externally similar to L. mesotropa, but with different reaction, thinner 

 lamina and shorter spores. Spores 0.009—11 mm. long, 0.006—7 mm. broad. 

 Spermatia 0.007 — 10 mm. long, scarcely 0.001 mm. broad." [Nyl.) 



116. L. ccdigans, Nyl. fodiginous-black, thin, rugose, diffract, 

 indeterminate ; apothecia blackish, plane, obtusely margined, within 

 pale ; spores 8, colourless, thinly aeieular ; epithecium colourless ; 

 paraphyses not distinct ; hypothecium colourless, (excipulum 

 somewhat brownish above) ; gelatina hymenea I vinous-red. 



On maritime rocks, rare. (1873). 



Stn :— Nyl. in Flora 1874. p. 10. 

 Bot. Pbov :— 31. 



Channel Islands :— Alderney. Mr. Larhalestitr. (1873,) 

 Allied to L. egenula, but a very distinct speoies, " Spores .030—35 mm. long, 

 .0015 mm. broad." (Nyl.) 



117. L. pammicta, Strn. whitish or cinereo-albescent, thick, 

 areolato-diffract, areolce smooth, minutely papillose, (K yellow then 

 orange-red) / apothecia black, sessile, plane or somewhat convex, 

 margin undulate, sometimes paler, internally pale ; hypothecium 

 colourless ; epithecium almost constantly gyroso-plicate ; spores 8, 

 colourless, ellipsoid, simple, rather small ; paraphyses thick, in- 

 distinct, apices clavate, nigricant ; gelatina hymenea I blue then 

 violet. 



On alpine rocks, rare. 1874. 



Stn :-Stirton in G-revillea 3. p. 34. (1874.) 

 Bot. Pkov : — 15. 



Scotland :— Ben Arthur, Dr. Stirton. (1874.) 



"Somewhat similar to L. mollis, (Whlnb.) and L. tesselata, (Flk.) Spores 

 .008— .01 mm. long, .005 — 6 mm. broad." (Stirt.) 



118. L. tenebrosa, (Flot.) cinereo-nigricant or darkly-cinereous 

 tartareous, rimoso-areolato-granulose, often smooth, opake, areolce 

 more or less tumid, (K dirty yellow C dirty yellow) ; hypothallus 

 black ; apothecia small, sub-innate in the areolae, black, plane, 

 margin thickish, eventually obliterated ; hypothecium colourless ; 

 spores 8, colourless, ellipsoid, simple ; paraphyses distinct, except 

 a dark discoloured line ; gelatina hymenea blue with iodine. 



On alpine rocks, not common. 



Stn :-Flotow in Herb. Nyl. Prodr. 127. Scand. 231. T. M. Fr. Scand. 540. 



Exs :— Anzi Langob. 154. Kabh. 746. Anzl It. S. 212. Leight. 188. 



Geog. Distrib : — Sweden, Pyrenees, Bavaria, Germany, Lombardy, Italy. 



Bot. Pbov :-5...7...15...22, 23.. .31. 



England : — Malvern Hills. Dr. Holl. Abdon Burf ! Devil's Chair ! Stiper- 

 stones ; Caer Caradoc ! Shropshire. 



Scotland : — Braemar ; near Portlethen ; Kincardine. Bev. J. M. Crorribie. 



Ireland :— Killarney and Lough Bray, Dublin; Luggelaw, Wicklow. Adm. 

 Jones. 



Wales : — Cwm Ffynnon lloer ! 



Channel Islands : — Noirmont, Jersey. Mr. Larbalestier. 



"Spores .011—17 mm. long, .006—7 mm. broad." (Nyl. & T. M. Fr.) 

 Spores .0125 — .014 mm. long, .0055 mm. broad. Medulla I reddish. 



119. L. asperella, Strtn. black, thickish, granuloso-fur/uraceous, 

 diffracto-areolate, determinate ; apothecia black, small, adnate, shin- 

 ing, plane, margin thin shining ; hymenium seen in a thin section 



