OF GREAT BRITAIN. 125 



f. isidiata, Anzi. centre of thallus densely isidiose. 



Syn :— Anzi Cat. p. 28. (1860.) 



Exs :— Mass. 314. Anzi It. S. 110. Leight. 79. Wright 77. 



Geog. Distrib :— Europe, New Zealand, Cuba. 



Bot. Pbov:— 5...7...12, 13.. .26. 



England :— Keswick, Cumberland ! Mrs Stanger. Wrekin, Shropshire ! 



Scotland : — Caerlaverook Wood, Dumfries ! Dr. Lindsay. 



Ireland : — Dawros River ! co. Galway. Mr. Larbalestier. 



Wales : — Barmouth ! Llyn Geirionydd ! 



f. Mougeotii, Schser. lacinise of the thallus very narrow multifid, 

 somewhat convex, closely adnate, sulphureo-sorediate, dark and 

 sub-diffract in the centre, paler and yellower in the radiate circum- 

 ference. 



Syn:— Schaer. En. 46. (1850.) Nyl. Syn. 392. 



ElG :— E. Bot. t, 1375. 



Exs :— M. and N. 1234. Schaer. 548. Leight. 143. Mudd 74. 



Geog. Distrib : — Europe, America. 



Bot. Pbov :— 7, 8...10...12...15...19, 20.. .26. 



England :— Ingleby Moor ! Battersby Moor ! and Hobhole, Cleveland. Mr. 

 MvM. near Thirsk. Mr. J. O. Baker, near Stavely. Mr. Martindale. Charn- 

 wood Forest, Leicestershire. Rev. A. Bloxam. Grassmere, Westmoreland. Rev. 

 J. Harriman. 



Scotland : — Near Aberdeen. Prof. Dickie, near Dunkeld. Dr. Holt. Glen 

 Dee in Braemar. Rev. J. M. Crombie. 



Ireland : — Kerry. Messrs. Taylor and Moore, near Dunkerron. Dr. Taylor. 

 Curraghmore, Waterford. Adm. Jones, near Lough Inagh, Connemara. Mr, Lar- 



Wales — Wall between Bodowen and Glan Mawddach in lane above turn- 

 pike road near Barmouth. Rev. T. Salmiey. Bettws-y-coed ! Holyhead ! 



18. P. sinuosa, (Sm.) flavescent, divaricato-lobate, lacinise narrow, 

 sinuato-pinnatifid, sinuses circular, apices dilated, cloven, often 

 sorediate, under surface nigro-fibrillose ; apothecia fuscous, margin 

 entire ; spores 8, colourless, elliptico-oblong, simple; medulla white 

 K yellow then red. 



On rocks, walls, &c. 1784. 



Syn : — Sm. E. Bot. 2050. (1809.) Ach. Syn. 207. Nyl. Syn. 384. 



Fig :— E. Bot. 2050. 



Geog. Distkib : — Throughout the world. 



Bot. Prov:— 1...7...13...15, 16.. .19, 20...31. 



England : — Bournemouth, Devon. Rev. A. Bloxam. Rossthwaite, Borrowdale. 

 Cumberland ! Mr. Robertson. 



Scotland :— Dumfriesshire. Mr. Burgess. (1784). Ballacheulish ; Messrs. 

 Turner and Hooker. Badick Castle, Arran ! Sir W. J. Hooker. Glen Nevis ! 

 Mr. Borrer. Glencroe ! Dr. Macmillan. 



Ireland : — Near Kildorrery. co. Cork ! Mr. Carroll. Dunkerron ! Dr. Taylor. 

 Killarney ! Sir T. Gage. Glencar. Mr. J. Taylor. Dawros River ! Lough Muck ! 

 co. Galway. Mr. Larbalestier. 



Wales :— Barmouth ! Rev. T. Salwey. Ty Gwyn, near Dolgelley. Dr. Holl. 



Channel Islands ;— Common in Jersey and Guernsey. Mr. Larbalestier. 



" Spores .014—17 mm. long. .008—9 mm. broad." {Nyl.) 



19. P. acetabulum, (Neck.) glauco-olivaceous or lurido-olivaceous, 

 coriaceo-membranaceous, sub-opake, orbicular, unequal or rugulose, 

 lobate, lobes rounded, fiexuose or imbricate, under surface castaneo- 

 fuscons or nigricant ; apothecia badio-rufous, receptacle corrugate, 

 margin rugoso-crenulate and sorediate ; spores 8, colourless, oblong, 

 simple ; medulla white K yellow then red. 



On trees. 1799. 



