334 LICHENACEI. [GTROPHORA. 



Brit. p. 41 ; Leight. Lich. Fl. p. 159, ed. 3, p. 146. LicJien pnlyr- 

 rhizos Linn. Sp. PI. (1753) p. 1151; Lightf. Fl. Scot. ii. p. 864; 

 With. Arr. ed. 3, iv. p. 64. Gyrophora pellita Ach., Turn. & Borr. 

 Lich. Br. p. 240 ; Gray, Nat. Arr. i. p. 478 ; Hook. Fl. Scot. i. p. 42 ; 

 Sm. Eng. Fl. v. p. 219 ; Tayl. in Mack. Fl. Hib. ii. p. 155. Liclien 

 pettifog Eng. Bot. t. 931. Lichen velleus Huds. Fl. Angl. p. 454. 

 Lichenoides pullum superne glabrnm, inferne nigrum et cirrhosum 

 Dill. Muse. 226, t. 30. f. 130. Brit. Exs. : Mudd, n. 89. 



Somewhat similar to G. polyphyllit, but differs at once in the black 

 hirsute fibi'illae of the under surface. The upper is somewhat shining, 

 and is occasionally sprinkled with a few small, irregular tufts of black 

 fibres. The apotkeeia, which are very rare in this country, are finely 

 gyroso-complicate, resembling, as stated in Sm. Eng. Fl. I. c., " the finest 

 and most beautiful filagree-work." 



Hub. On rocks and boulders in upland and subalpine districts. Distr. 

 Somewhat local and scarce in W., N. England, and N. Wales; general 

 and plentiful among the Scottish Grampians ; rare in E. Ireland (co. 

 Wicklow). B. M.: Dartmoor, Devonshire; Helminton, Cornwall; 

 Carnedd Dafydd, Carnarvonshire ; Cwrn Bychan and near Barmouth, 

 Merionethshire; Ay ton Moor, Cleveland, Yorkshire ; Teesdale, Durham ; 

 The Cheviots, Northumberland; Ennerdale, Cumberland. New Galloway, 

 Kirkcudbrightshire ; Dalmahoy Hill, near Edinburgh ; Aberfeldy, Amul- 

 ree and Glenshee, Perthshire ; Cortachy and Clova, Forfarshire ; Loch- 

 nagar, Loch Phadrig. Glen Callater, and Glen Dee, Braemar, Aberdeen- 

 shire ; near Rothiemurchus, Ben Nevis, and Ben Ferrog, Inverness-shire. 



Form luxurians Fr. fil. Lich. Scand. (1871) p. 159. Thallus 

 polyphyllous, lohulate or somewhat laciniatc and crisp at the 

 margins, beneath subnaked. Cromb. Grevillca xv. p. 79. Umbili- 

 caria polyrrhiza var. luxurians Cromb. Lich. Brit. p. 41 ; Leight. 

 Lich. Fl. ed. 3, p. 147. Gyrophora pellita /3. luxurians Ach. Lich. 

 Univ. (1810) p. 228. 



As its trivial name denotes, this is a more luxuriant state of the type, 

 with the thallus more divided, the lobes often much congested, crisp at 

 the margins, and much less (or scarcely) fibrillose on the under surface. 

 It is not seen fertile. 



Hab. On rocks, boulders, and stone walls in mountainous districts. 

 Distr. Only in S.W. England and among the Grampians, Scotland. 

 B.M. : Walkhampton and Sharpitor, S. Devon. Ben Lawers and near 

 Tummel Bridge, Perthshire ; Glen Callater, Braemar, Aberdeenshire ; 

 Glen Nevis, Inverness -shire. 



