OF GREAT BRITAIN. 101 



Sub-tribe II. PELTIDEI. 

 Stratum gonidiale formed of granula gonima, not gonidia. 

 Apotheoia marginal on the upper surface of thallus. Spores 8 

 colourless or slightly fusoescent, fusiform. 



II. PELTIGERA. (Hffm.) Ach. 

 Thallus membranaceo-lobate, fragile, cortical layer not con- 

 tinuous on the under surface and there generally nerved and 

 rhizinose. Apothecia marginal on upper surface of thallus. 

 Spores 8, odourless or slightly fuscescent, fusiform, 3-5-7-septate. 

 Stratum gonidiale of granula gonima not gonidia. 



A. Apothecia adnate, 



1. P. aphthosa, (L.) glauco-virescent or livido-glaucescent, broadly 

 membranaceous, smooth, with pale brown patelliform or verrucose 

 depressed cephalodia, beneath either reticulato-nigricanti-nervose, 

 or continuously fusco-nigrieant, with broad whitish margin ; apo- 

 thecia fusco-rufescent, rotundate, adnate to a narrow ascending 

 thalline lobe ; spores 8, colourless or fuscescent, fusiform, 3-7- 

 septate. 



On shady alpine rocks. 



Syn :-Linn. Fl. Suec. 1098. Nyl. Syn. 322. Mudd Man. 81. 



Fig :— E. Bot. 1119. Nyl. Syn. t. 8. f. 38. Hepp Sporen t. 19. f. 173. 



Exs:— Tuck. 9. 102. M. & N. 251. Mudd 58. Mass. 12. Anzi It. S. 90. Hepp 

 173. Schasr. 29. 



Geog. Distkib : — N. Europe, N. Asia, N. America. 



Bot. Pkov :-5...7, 8.. .10, 11...14, 15...26...30. 



England :— Craigforda ; and Downton Castle, Herefordshire. Rev. T. SaZwey. 

 Cheviots, above Langley Ford ; Gunnerton Crags ; Shewing Shields, Northum- 

 berland ; Hagerag Wood in Teesdale Forest, Durham. Mr. Winch. Holwick. 

 Rev. J. Harriman. near Buxton. Dr. Holl. Ilsington ; Lustleigh, &c. Devon. 

 Messrs. Jones and Kingston. Swinnop, Allendale, Northumberland ; Foreshield, 

 Alston, Cumberland. Rev. W. Johnson. 



Scotland :— Foot of Pentland Hills. Mr. Yaldon. near the Falls of the 

 Clyde, in fruit. Messrs. Turner <£■ Hooker, near Babbie's How, in the Pentland 

 Hills. Dr. Greville. Abbey St. Bathans ! Dr. G. Johnstone. Sands of Barrie and 

 west side of the White Hill, Forfarshire, in fruit. Mr. W, Gardiner. Banks of 

 the Garry. Blair Athole. Rev. J. M. Crombie. 

 Wales — Llyr^Bodlyn ; Breidden. Rev. T. Salwey. Eglwyseg Kocks 1 



Ikeland : — Sallagh Braes, near Belfast. Mr. Templeton. co. of Deny. Mr. D. 

 Moore. Twelve Pins ! Connemara. Mr. Larbalestie.r. 



"Spores .009 to .012 in. long, by .00075 in. broad." (Mudd.) "Spores .060— 

 92 mm. long, .005-6 mm. broad." (Nyl.) 



2. P. canina, (L.) canescent or cinereo-pallescent, opake, more 

 or less longitudinally lacuiwso-impressed, adpresso-tomentellose, rotun- 

 dato-lobate, under surface longitudinally appresso-albo-tomentose 

 with prominent pale anastomosing villoso-tomentose nerves extending 

 to the very margin and clothed with tufts of pale rhizinm ; apothecia 

 fuscous or fusco-rufous, adnate, margin nearly entire, lack of recep- 

 tacle uniformly iomentose, almost subfurfuraceous ; spores 8, colour- 

 less, elongato-fusiform, 3-5-septate. 



On mossy earth, stones, &c. very common. 



Syn :— Linn. Fl. Suec. 1109. Nyl. Syn. 324. Mudd Man. 82. Grsvillea 3. 168. 

 Fig ;— E, Bot. 2299. DM, t. 27. fig. 102. E. Hepp Sporen t.9 6. f. 575. 



