OP GREAT BRITAIN 99 



I. NEPHROMIUM. Nyl. 



Thallus membranaceous, fragile, lurid, or glaucescent or fusces- 

 cent, cortical layer continuous on the lower surface, and nerveless. 

 Apothecia adnate to the lover surface of margin of thallus. Spores 

 8, colourless or fuscescent, 3-septate. Granula gonima moniliform, 

 dark cteruleo-virescent. 



1. N. loevigatum, Ach. lurido-fuscescent, orbicular, rotundato- 

 lobate, margins sinuato-crenate, opake, scarcely shining above, beneath 

 pale glabrous and slightly rugulose (medulla white K — ) ; apo- 

 thecia fusco-rufous, margin of receptacle crenulato-unequal, back of 

 receptacle minutely depresso-granulate ; spores 8, fuscescent, fusi- 

 formi-oblong, 3-septate. 



On trees, rocks, and stones, in shady alpine places. 



Stn :— Ach. Syn. 242. (1817). Nyl. Syn. 320. Leight. in Ann. & Mag. Nat 

 Hist. 4. ser. vol. 5. p. 37. Mudd Man. 81. 



Fig :— Tul. Mem. Lich. t. 9. f. 18—23. 



Exs :— Maudon 31. Smrft. 70. 



Geog. Distrib : — Throughout the world. 



Bot. Prov:— 1...3, 4...7...12...15...31. 



England : — Keswick !, Cumberland. Mrs. Starrer. S. Devon and Cornwall. 

 Dr. Holl. Bagley wood, near Oxford. Mr. Baxter. Cambridgeshire. Rev. R. 

 Relhan. 



Scotland : — Highlands ! Baron Von Wulfen. Blair Athole ! Prof. Dickie. 

 Grampians. Rev. J. M. Crombie. Killin. Dr. Holl, 



Wales :— Dolgelley. Dr. Soil. 



Channel Islands :— Common on all the Islands. Mr. Larbalestier. 



" Spores .004 to .0045 in. long, by .00125 in. broad." (Mudd.) 



Var. parile, (Ach.) lurido-fuscescent, paler or fusco-nigricant and 

 glabrous beneath, margins crisped and caesio-sorediate. (medulla 

 white K— ). 



Stn :— Ach. Prodr. 164. (1798). Nyl. Syn. 320. Leight. in Ann. and Mag 

 Nat. Hist. 1. c. 



Eia :-E. Bot. 2360. Dill. Muse. t. 28. f. 105. B. & C. 



Exs :— Nyl. Paris. 109. Anzi It. S. 88. Langob. 24. 253. & 254. A. M. & N. 

 838. Am. 621. 



Geog. Distbib :— Europe, Chili. 



Bot. Pbov:— 1...5...7...16...30. 



England '. — Hennock, near Bovey Tracey, S. Devon ! Dr. Holl. Cound 

 Moor, Shropshire. Rev. Edw* Williams. Heavitree, Exeter. Mr. Parfitt. 



Scotland : — Appin. Rev. J. M. Crombie. 



Ireland : — Near Glenarm, co. Antrim, Dr. Moore. 



Wales :— Dolgelley. Mr. Rolfs, near Dolgelley ! Dr. Holl. Drwsynant ! 



Var. subtomenteilum, Nyl. under surface of thallus obsoletely 

 sub-tomentellose ; bach of receptacle rugose or coriaceo-rugulose, or 

 slightly areolato-granulose or areolato-rugulose (medulla white K 

 yellow). 



On old ash trees. 



Stn : — Nyl. Lapp. or. p. 116. 



Exs : — Fellm. 67. Anzi Langob. 252. M. & N. 252 upper specimen. 



Geog. Distrib : — E. Lapland, Lombardy, Switzerland. 



Bot. Prov: — 7... 15. 



Scotland : — Head of Loch Awe, ArgyleBhire. Rev. J. M. Crombie. 



Wales :— Drwsynant 1 



2. N. tomentosum, Hffm. livid or livido-castaneous or lurido- 

 fuscescent, lobate or laciniato-lobate, glabrous below, tomentose 

 upwards, under surface pale and villose, (medulla white K — ); 



