OF GREAT BRITAIN. 301 



forma nobilis. Fr. 1 pale-ashy bluish-grey, very thick and 

 tartareous, areolate, areolae turgid and convex ; apothecia large, 

 more or less convex and hemispherical, slightly pruinose, margin 

 frequently paler. 



On mountain rocks, frequent. 



Sra :— Fries L. Eur. 301. (1831.) 



Exs :— Mudd 180. Am. 192. Fellm. 185. Leight. 337. 



Geog. Distbib :— Pyrenees, Italy, E. Lapland, Norway. 



Bot. Pbov :— 5...7...10...14. 



England : — Cliffrigg ! Cleveland. Mr. Mudd. Caer Caradoe ! Laurence 

 Hill ! Wrekin ! Pontesf ord Hill ! Long Mynd and Bodbury King ! near Church 

 Stretton ! Shropshire. 



Scotland : — Pentland Hills ! Dr. Greville. 



Wales ; — Aber ! Diganwy ! Carnarvonshire ; Craig Breidden ! Montgomery- 

 shire ; between Llangollen and Corwen ! Moel Siabod ! Snowdon ! Barmouth ! 

 Aran Mowddwy ! Cwm Ffynnon Llugwy ! Cader Idris ! 



Spores .019 mm, long, .015 mm. broad. 



forma Hoffmanni, Leight. dirty-cream-colour , thick, tartareous, 

 rimuloso-areolato-diffract, areolxs flatfish; apothecia large, sub- 

 innate or sessile, flat or convex. 



On rocks rare. 



Syn -.—Verrucaria contigua, Hoffm. El. Germ. 2. 184. (1798.) 



Pig :— Hoffm. PL Lich. t. 62. 



Geog. Disteib :— Europe. 



Bot. Pbov :— 2...7...19. 



England :— Sussex ! Mr. Borrer. 



Ibeland : — Musheragh Mount ! co. Cork. Mr. Cm-roll. 



Wales : -Cwm Idwal ! 



Spores .02 mm. long, .011 mm. broad. 



forma flavicunda, Ach. rusty-red, thick, tartareous, areolate, 

 &re6l& flat ; apotkecia large, appressed, black, flat or plano-convex, 

 more or less albo-pruinose. 



On rocks, frequent. 



Syn :— Ach. L. U. 166. (1810.) Syn. 22. Nyl. Scand. 224. 



Pig : — Mass. Bio. fig. 143. 



Exs :— Zw. 16. 17. Schser. 186. Anzi Venet. 174. 



Geog. Distrib : — Italy, Pyrenees, Tyrol, Switzerland, Sweden, Finland. 



Bot. Pbov :— 5. ..7. ..15. ..26. 



England :— Titterstone Clee Hill ! Shropshire. Rev. T. Salwey. Brown Clee 

 Hill! Shropshire. 



Scotland:— Loch-na-gar, ! Braemar; Amulree ! Perthshire. Dr. Lindsay. 



Wales :— Moel Eilio ! Moel Hebog ! Mr. Borrer. Llyn-y-Cae ! Cader Idris ! 

 Barmouth ! very summit of Snowdon ! Moel Siabod ! Penygwryd ! Crib 

 Coch ! Nant Gwynant ! Snowdon, Cwm Tryfaen ! Cwm Bochlwyd ! Cwm 

 Ffynnon lloer ! Llyn Cwlyd ! 



Ibeland :— Doughruagh Mountain! co. Galway. Erriff River! Mr. Lar- 

 oalestier. 



" Spores .015—21 mm. long, .008—011 mm. broad." (Nyl.) Spores .0215— 

 .023 mm. long, .0115— .012 mm. broad. 



forma aggerata, Mudd. greyish-brown or grey, effuse, thin, sub- 

 tartareous, granuloso-rimoso-areolate ; apothecia minute, numerous, 

 aggregated, convex, immarginate ; hypothecium black ; spores 8, 

 colourless, oblong, simple. 



On rocks and walls, rare. 



Syn :— Mudd Man. 208. (1861.) 



Exs :— Mudd 175. 



Geog. Distbib : — Europe. 



Bot. Pbov:— 3.. .7. .10. 



