OF GREAT BRITAIN. »D 



Stn :— Ehrhart Beitr. 2. p. 95. (1788), Nyl. Syn. 308. Crombie in Journ. n. ■>. 

 1. p. 234. Mudd Man. 80. 



Fig :— Hffm. PL L, t. 14. f. 1. E. Bot. t. 2386. fig. 1. and 2. and lower right 

 hand figure. Hepp Sporen t. 96. f. 843. 



Exs :— Schser. 297. Hepp 843. Kabh. 741. Fellm. 63. Leight. 45. Smrft. 152. 



Geog. Distrib :— N. Europe, N. Asia, Arctic America. 



Bot. Prov :— 1...5...7, 8.. .10, 11...15...18...31. 



England : — Yarmouth. Mr. D. Turner. Oteley Park pales, near Ellesmere, 

 Shropshire. Rev. T. Salwey, Ingleby Park; Baysdale ; Kildale; and High Cliff, 

 Cleveland. Mr. Mudd. near High Force Inn, Teesdale. Dr. Holl. Bardon Hill ; 

 Gopsall, Leicestershire. Rev. A. Bloxam. 



Scotland :— Deerhill Wood ; White Hill ; Forfarshire, Mr. W. Gardiner. 

 Kinnordy. Mr. Lyell. Morchone ! Braemar ; Blaeberry Hill, Perth ; Garryna- 

 hine, Lewis. Dr. Dimdsay. Quoich, Braemar ; Killin ; Blair Athole, Rev. J. M. 

 Crombie. 



Wales : — Cwm Bychan ; Cessel Cwm ; Drws Ardudwy. Rev. T. Salwey. 

 Giant's Pebbles, Cader Idris. Mr. Rolfs. 



Channel Islands : — Guernsey. Rev. T. Salwey. 



"Spores .0175 in. long, by .001 in. broad." (Mudd.) "Spores .008— .010 

 mm. long, .0055— .0065 mm. broad." (Nyl.) "Spores .006—10 mm. long, 

 .004-6 mm. broad." (T. M. Fr.) 



Var. vlophylla, Ach. paler and larger than sapincola ; laciniate, 

 lacinise variously divided, sub-adpressed, margin undiUato-crisped, 

 albo-sorediate, (K — C — ) ; apothecia small. 



On trees, palings, &c, frequent, but rare in fruit. 



Syn :— Ach. Meth. 297. (1803). Nyl. Syn. 309. Crombie. 1. c. 



Fig :— E. Bot. 2386. fig. 3. and lower left hand figure. 



Exs :— Anzi It. S. 54. Kabh. 742. Mudd 56. 



Bot. Prov:— 4, 5...7...10...15. 



England : — Ingleby Park 1 Kildale ! Cleveland. Mr. Mudd. Oteley Park 

 pales !, Ellesmere, Shropshire. Rev. T. Salwey. Stiperstones ! Shropshire. 



Scotland : — Kinnordy, Forfarshire. Sir. W. J. Hooker, Blaeberry Hill \ 

 Perth. Dr. Lindsay. Scotch Mountains. Mr. Dickson. Linn of Quoich, Braemar ; 

 Grampians. Rev. J. M. Crombie. 



Wales : — Conway falls ! Cwm Bychan ! 



5. P. Fahlunense, (L.) fuscous or spadiceo-fuscous or fusco- 

 nigricant, orbicular, smooth, lobato-laciniate, lacinim appressed, 

 planosubcanaliculate, margins elevated, apices rotundato-crenate, be- 

 neath nigricant, (K medulla yellow) ; apothecia fuscous or fusco- 

 rufous, receptacle plicato-rugose, margin granulose ; spores '8, co- 

 lourless, oblong, simple, small; spermatia slender, elongate, straight 

 incrassate at each apex. 



On alpine rocks, rare. 



Attention to the margins of the thallus and spermatia will always distinguish 

 this from P. commixtum, NyL 



Syn :— Linn. Fl. Suec. 1078. Nyl. Syn. 309. Mudd Man. 100. 



Fig :— Hoffm. PI. L. t. 36. f. 2. Hepp Sporen t. 67. f. 586. 



Exs :— Hepp 586. Schaer. 373. 374. Fr. L. S. 336. Anzi It. S. 55. 56. 



Geog. Distrib : — Arctic Europe, N. America, Himalaya. 



Bot. Prov:— 1...7...10, 11...15. 



England :— Yorkshire ! Mr. Dixon. Teesdale ; Weardale : Butsfield ; Hors- 

 leyhope, Durham; Cheviot, Northumberland. Mr. Winch. Hay Tor, Dart- 

 moor. Dr. Holl. 



Scotland : — Clova Mountains. Mr. W. Gardiner. Grampians, Braemar ; 

 Ben More, Bredalbane. Rev. J. M. Crombie. Ben Lawers. Dr. Holl. 



Wales : — Llyn Cae, Cader Idris. Rev. T. ~ 



Spores .008— .011 mm. long, .005—7 mm. broad." (Nyl.) " Spores .005— .011 

 .004—6 mm. broad. (T. M. Fr.) Spores .008 mm. long, .0055 mm. 



mm. long, 

 broad. 



6. P. diffusum, (Web.) whitish or albido-cinerascent, stellato- 

 orbicular, appressed, lacinise narrow, applanate, multifid, albo- 



