138 THE LICHEN-FLORA 



f. sorediata, (Nyl.) albido-glaucescent, closely appressed, lacinim 

 broader, dilated at the extremities, margins and centre sorediate. 

 On walls and trees, uncommon. 1875. 



Ireland :— Base of Letter Hill ! near Letterfrack, co. Galway. Mr. Lar- 

 balestier. (1875.) 



9. P. retrogressa, (Strtn.) like P. stellaris, medulla K — and 

 spores somewhat smaller .003— .018 mm. long, .007 — .009 mm. 

 broad. 



On trees. 1875. 



Syn :— Stirton in Trans. Glasgow Soe. Nat. p. 85. (1875.) 

 Scotland : — Near Altnaharra, co. Sutherland. Dr. Stirton. (1875. ) 



§§ thallus and medulla K+C+. 



- 10. P. leucomela, (L.) whitish or albido-glaucescent, subaespitose, 

 lineari-laciniate, lacinim lax, diffuse, sub-ascending, margin nigro- 

 Jibrilloso-ciliate, under surface subcanaliculate or plane, albo-granu- 

 lose ; apothecia csesio-pruinose, margin radiato-coronate ; spores 8, 

 fuscous, elongato-oblong, 1 -septate ; (thallus and medulla Ky Cy.) 

 Amongst grass, &c. 1813. 



Stn :— Linn. Sp. PI. ed. 3. 1613. (1764.) Ach. Syn. 222. NyL Syn. 414 Mudd 

 Man. 104. 



Fig — E. Bot. 2548. Hepp Sporen t. 66. f. 573. 



Exs :— Hepp 573. M. & N, 941. Bourgeau 298. Welw. Lusit. 79. Leight. 168. 

 Larbal. 69. , . 



Geoo. Disteib : — Europe, Asia, Africa, America, Australasia, 



Bot. Pkov :— 1...16...3L 



England : — Babbicombe, Devonshire. Sir W. J. Hooker. Torquay ! Dr. 

 Deakin. Cornwall ! Mr. Borrer. Bolt Head, S. Devon. Dr. Soil. 



Ireland : — Ballycotton ! near Cork and on Cape Clear Island. Mr. GarroU. 



Channel Islands : — Jerbourg and S.W. point of Roequaine Bay. Mr. Lutes. 

 Grosnez Castle, Quenvais, Jersey ! Bruchere. Mr. Larbalestier. 



" Spores .035— .060mm. long, .018— .025 mm. broad." (Nyl.) 



, 11. P. speciosa, (Wulf.) white or albo-einerascent, stellato-laci- 

 niate, laciniae narrow, mvltifid, plane, sub-imbricate, somewhat 

 ascending at the apices, under surface plane albo-flocculose, rhizinse 

 and marginal ciliae whitish ; apothecia fuscous, margin sub-entire 

 or crenulate, incurved ; spores 8, fuscous, oblong, 1 -septate ; (medulla 

 K yellow C yellow). 



On trees and rocks. 1809. 



Stn :— Wulfen in Jacq. Coll 3. 119. (1789.) Ach. Syn. 211. Nyl. Syn. 416. 

 Mudd Man. 107. 



Fig :— E. Bot. 1979. 



Exs :— M. & N. 635. Schaer. 357. Tuck. 81. Spruce Amaz. 154. Anzi 

 Langob. 56. 



Geog. Distbeb : — Europe, Asia, Africa, America, Polynesia, Australasia. 



Bot. Peov :— 1...15, 16 . 19...30, 31. 



England : — Poldesco, Cornwall. Mr. Botrer. Bolt Head, S. Devon. Dr. 

 Boll. 



Scotland :— Ballacheulish, near Fort William. Messrs. Turner and Hooker. 

 Glen Fallooh. Dr. Holl. Appin. Rev. J. M.CromMe. 



Ibkland : — Dunkerron. Dr. Taylor. Glenarm, co. Antrim. Dr. Moore. 



Channel Islands :— Jerbourg, Guernsey. Ber. T. Salieey. Bozel, Jersey. 

 Mr. Larbalestier. 



"Spores .004 to .0045 in. long, by .00175 to .002 in. broad." (Mudd.) " Spores 

 .025—36 mm. long, .012—17 mm. broad." (Nyl. <fc T. M. Fr.J 



