OF GREAT BRITAIN. 233 



effuse or sub-determinate, brown and zonate at the circumference, 

 smooth, rugose; verrucas convex, confluent, sorediate, margin 

 narrow, obscure, eventually excluded; spores not seen. 

 On trees and rocks, common. 



Stn :— Linn. Sp. PI. No. 10. (1753.) Turn. & Borr. ! Lich. Brit. 64. V. ilicea ! 

 Lyell ! MS. in herb. Borrer. 



Fig :— E. Bot. 1713. 



Exs :— M. & N. 264. Mudd 263. 



Geog. Distbib : — Arctic America. 



Bot. Peov :— 1, 2, 3, 4, 5.. .10.. .15.. .30. 



England : — Sussex ! Mr. Borrer, near Ayton ! Cleveland. Mr. Mudd. New 

 Forest ! Mr. Lyell. Devon. Messrs. Jones and Kingston. Great Glenham, 

 Suffolk. Rev. B. JT. Bloomfield. Bexley, Penshurst, Postling, Shoreham, Kent. 

 Mr. Holmes. Haughmond Hill ! Shropshire. 



Scotland : — Hunter's Hill, Glammis ! Mr. Gardiner. 



Ibeland : — Near Belfast and Devis Mountain. Mr. Ternpleton. 



Although I have been unable to detect spores, yet the different chemical 

 reaction indicates this to be distinct. 



G. Thallus K—C-. 



17. P. ophthalmiza, Nyl. greyish, thin, srnooihish, or slightly 

 rugoso-unequal, verrucoe crowded, small, albo-sorediate ; apothecia 1 

 rarely 2 or three in each verruca, lecanoroid, nigricant, ihalline 

 margin rugose, or sub-leprose ; spores 1, colourless, ellipsoid. 



On aged pine trees, rare. 1864. 



Stn :— Nyl. Scand. 180. (1861.) Flora 1865. p. 354. 



Geog. Distbib : — Europe. 



Bot. Pbov :— 15. 



Scotland : — Glenfalloch ! Messrs. Jones & Carroll. (1864. ) 



" Spores .160— .205 mm. long, .080— -100 mm. broad." (Nyl.) 



18. P. globulifera, (Turn.) greyish, cartilagineo-membranaceous, 

 verrucoso-rugose, albo-sorediate, smooth, zonate and brown at the 

 circumference ; verrucas large, globular, closed, slightly depressed, 

 lycoperdoid, eventually lacerato-dehiscent, and pseudo-scutelliform, 

 albo-sorediate, spores 1 or 2, colourless, ellipsoid, simple, large. 



On trees, rare. 1802. 



Syn : -Variolaria, Turner in Linn. Trans. 9. 139. (1808.) Nyl. Scand. 180. 

 Turn. & Borr. L. Br. 59. Ach. Syn. 130. V. discoidea, T. & B. ! 1. c. 61. 



Fig :— Linn. Tr. 9. t. 10. f . 2. E. Bot. 2008. and 1714. 



Exs :— Schasr. 597. Bohl. 96. Anzi It. S. 346. 347. 



Geog. Distbib : — Europe, Ohio, Tasmania. 



Bot. Pkov :— 1, 2, 3, 4, 5...7...10...19...26. 



England :— Yarmouth ; and St. Leonard's and Danny ! Sussex ! Mr. Borrer. 

 1802.) Craig-y-Rhiw ! and Llanforda ! near Oswestry. Rev. T. Salwey. New 

 Forest ! Adm. Jones. Malham, Yorkshire. Dr. Garrington. Brantsdale ; Kildale, 

 Yorkshire. Mr. Mudd. Kelvedon, Essex. Mr. Varenne. Bagtor Wood ; Ilsing- 

 ton, Devon. Messrs. Jones and Kingston. Paradise, Eastbourne. Mr. Roper, near 

 Cirencester. Mr. W. Joshua. Coxwall Knoll ! near Bucknell, Chudleigh ! Pens- 

 hurst, Ightham, Postling, Kent. Mr. Holmes. Llanyblodwel rocks ! Shropshire. 



Ireland: — Castlemartyr Deer Park co. Cork. Mr. Carroll. Ashley Park ! 

 near Galway. Mr. Larbalestier. 



Wales : — Bala, Dolmelynon. Mr. Holmes. 



19. P. Eutchinsios, (Turn. & Borr.) white or cream-colour, thin, 

 effuse, minutely rugoso-unequal ; verrucas small, crowded, deformed, 

 pseudo-disciform ; ostiola large, brownish-black, csesio-pruinose, 

 depressed, margin lacerate ; spores 1, colourless, ellipsoid, simple, 

 large. 



