OF GREAT BRITAIN. 117 



Channel Islands .-—Guernsey, Rev. T. Salwey. Jersey and Sark. Mr. Lav- 

 balestier. 



" Spores .0015 to .002 in. long, .00075 to .001 in. broad." (Mudd.) " Spores 

 .006—8 mm. long, .005—6 mm. broad." (Nyl.) "Spores .006—8 mm. long, 

 .005—6 mm. broad." (T. M. Fr.J 



Var. vittata, Ach, lacinice of thallus narrow and linear, denigrate 

 at the margins. 



On trees, not common. 



Stn :— Aoh. Meth. 251. (1803). Syn. 218. Nyl. Scand. 103, Mudd Man. 96. 



Exs :— Pellm. 76. Schaw. 367. 



Geoc . Distbib : — Switzerland, Italy, Scandinavia. 



Bot. Pbov :— 7...15. 



Scotland : — Highlands, frequently. Dr. Boll. 



Wales .■— Dolgelley. Dr. Boll. 



Var. recurva, Leight. like the type, but apices of latinise recurved 

 and albo-sorediate. 



On trees and rocks, common. 



Fig :— E. Bot. 126. upper fig. 1. 3. 



Exs :— Nyl. 113. Mudd 70. Keich. and Schub. 65. 



GrKOG. Distbib:— Europe. 



Bot. Pbov :— 5...7...10...12...15. 



England :— Hay Park, Herefordshire (fruit) ! Rev. T. Salwey. High Cliff ! 

 and Lounsdale ! Cleveland. Mr. Mudd. Keswick, Cumberland (fruit) Mrs. 

 Stamger. Nesscliff e Hill ! Wrekin Hill ! Long Mynd ! Stiperstones ! Shrop- 

 shire. 



Scotland : — Loch-na-Gat stream, Ben Lawers (fruit) ! Mr. A. McKinlay. 



Noeth Wales : — Barmouth ! 



Var. labrosa, Ach. apices of latinise sub-cylindrical, turgescent, 

 tuberculoso-albo-sorediate. 

 On trees, &c, common. 



Stn :— Ach. L. U. 492. (1810). Nyl. Syn. 401. Mudd Man. 97. 



Pig:— Hffm. Enum. 1. 15. f. 2. E. Bot. 126. fig. 5. 



Exs :— Am. 297. Mass. 278. Bohl. 13. Leight. 48. (right hand spec). Hepp 

 856. Kabh. 793. 



G-EOG, DISTBD3 ;— Europe. 



Bot. Pbov :— 5...7...(13— 18). 



England :— Malvern Hills, Worcestershire. Sir J. E. Smith. Pentre-noon, 

 Monmouth. Dr. Boll, near Cirencester. Mr. W. Joshua. Wrekin Hill, Shrop- 

 shire ! 



Scotland : — frequent. Rev. J. M. Cronibie. 



Wales : — Gwydir Woods ! Bettws-y-coed (fruit). 



Var. platyphylla, Ach. orbicular, latinise smooth, glabrous > 

 broader, turgid and undulate, and spermogoniferous towards the 

 centre, appressed, rounded and crenate at the circumference. 



On rocks, not common. 



Syn :— Ach. Meth. 251. (1803) Syn. 219. Nyl Syn. 400. 



Exs :— Schser. 366. M. & N. 159. 



Geog. Distbib : — Europe. 



Bot. Pbov :— 5.. 7...10, 11.. .15.. .20. 



England : — Snailesworth ! Mr. J. G. Baker. Yorkshire ! Mr, G. Dickson, 

 Waskerley Bourn and Wolsingham Park, Durham. Mr. Winch. 



Scotland :— Blaeberry Hill, Perth ! Dr. Lindsay. 



Ibeland : — Near Cork ! Mr. J. Carroll. 



Nobth Wales :— Pentregaer near Oswestry ! Rev. T. Salwey. Llyn 

 Geirionydd ! CwmFfynnon Llugwy ! 



Var. encausta, (Sm.) albido-cinerascent, nearly fuscescent, nar- 

 rowly laciniate, unequal, lacinice multifid, convex, or terete, imbricato- 



