OF GREAT BRITAIN, 



453 



Svn :— Mass. Symm. 89. (1855.) 

 Exs :— Anzi Venet. 160. 

 Geoq. Disteib : — Italy. 

 Bot. Peov :— 5. 



England :— Cowcombe Wood, Gloucestershire. Mr. Joshua. (1876.) 

 Spores ,028— .032 mm. long, .0165— .020 mm. broad. Nearly allied to, if 

 not identical with viridula. 



**** Thallus areolato-diffract. 



t 22. V.fuscella, Turn, dark-greyish-brown, crustaceous, thickish, 

 areolato-diffract, nigro-limitate, areolae smooth, intersected with 

 minute dark lines from the predominant hypotlialhis ; apothecia 

 minute, immersed in the areolae ; ostiolum nearly plane, depressed ; 

 epithecium poriform ; perithecium entire, pale ; paraphyses none ; 

 spores 8, colourless, narrow-oblong, simple. 

 On walls, &c, rare. 1804. 



Stn :— Turn, in Linn. Trans. 7. p. 90. (1804.) Ach. L. V. 289. Leight. Ang. 

 Lich. 23. Mudd Man. 288. 



Fig :— E. Bot. t. 1500. Leight. Ang. Lich. t. 7. f. 2. 



Exs :— Arn. 388. Hepp 90. Mudd 276. 



Geog. Distrib : — Germany, Switzerland, Hungary, Bavaria. 



Bot. Peov :— 1, 2, 3, 4...7...11...13, 14, 15...19...31. 



England: — Gorlestone Church, Norfolk. Mr. Turner. (1804.) Sussex! Mr. 

 Borrer. near Stanhope ! Durham. Mr. Mudd. Penzance. Mr. Ournow. Malvern. 

 Mr. Lees. Upperton Farm, Eastbourne. Mr. Roper. Hythe, Kent. Mr. Holmes. 

 Llanymynech Hill ! Shropshire. 



Scotland : — Central parts. Rev. J. M. Crombie. 



Ieeland :— Dunkerron Castle, co. Kerry. Dr. Taylor. 



Wales : — Bangor. Mr. Holmes. 



Channel Islands : — Jersey. Mr. Larbalestier. 



" Spores .003 to .0035 in. long, by .001 to .00125 in. broad." {Mudd.) Spores 

 .014—0155 mm. long, .006— .007 mm. broad. 



23. V. polysticta, Borr. creamy-white, somewhat glaucescent, 

 crustaceous, thin, areolato-diffract, nigro-limitate, areolae smooth, 

 plane, with a somewhat elevated thin black edge from, the pre- 

 dominant hypothallus ; apothecia black, small, immersed in the 

 areolae ; ostiolum 'prominent, sub-convex ; perithecium entire, black ; 

 spores 8, colourless, narrow-oblong, simple, of the same size as 

 those of fuscella. 



On walls &c, rare. 1832. 



Stn :— Borr. in E. Bot. Suppl. 2741. (1832.) Leight. Ang. Lich. 49. Mudd 

 Man. 288. 



Pig :— E. Bot. Suppl. t. 2741. Leight. Ang. Lich. t. 21. f. 5. 



Exs :— Anzi It. S. 363. Nyl. 147. 



Geog. Disteib :— Italy, Bavaria, Germany, France. 



Bot. Peov:— 1, 2.. .4.. .10.. .23-31. 



England :— Sussex ! Mr. Borrer. (1832.) Suffolk ! Rev. G. R. Leathes. Isle of 

 Wight ! Rev. T. Salwey. Bievaulx Abbey ! Yorkshire. Mr. Mudd. Exeter. Mr. 

 Parfitt. 



Ikeland : — Eastern Counties. Dr. Moore. 



Channel Islands : — Hill above Fort Essex, Alderney ! Mr. Larbalestier. 



"Spores .00275 to .003 in. long, by .001 in. broad." (Mudd.) Spores .016 

 mm. long, .006 mm. broad. 



This and fuscella may be only states of the same lichen. 



24. V. glaucina, (Ach.) glaucous or leaden-grey, thickish, crus- 

 taceous, areolato-diffract, nigro-fusco-limitate, areolae smooth, plane 

 or plano-convex, edged with the predominant nigro-fuscous hypothal- 

 lus ; apothecia blackish, immersed, two or more on each areola, to 



