OF GREAT BBIIAIN. 87 



ceptacle rugoso-unequal or nearly smooth; spores 8, colourless, 

 oblongo-ellipsoid or oblong, nearly straight or straight, 1-septate ; 

 spermogonia in pale colourless receptacles. 



On maritime inland rocks, frequent, rare in fruit. 



Stn: — B. polymorplia, Ach. L. U. 600. Syn. 295; Nyl. Mon. Ramal. 50; 

 Orombie 1. o. 72. 

 Fig :— Ach. Act. Holm. 1797, t. 11. f. 3. 

 Exs :— Fries L. S. 144. 

 Geog. Distbib : — Europe. Africa. 

 " Spores Ml— 16 mm. long, .004—5 mm. broad." (Nyl.) 



Forma ligulata, Ach. lacinice thick, rigid, cartilaginous, either 

 plane, and nearly simple or broader and deformed, and covered with 

 sorediate pustules. 



On maritime rocks. 



Syn : — B. polymorpha. var. ligulata, Ach. Syn. 295 ; Nyl. Mon. Kamal. 51 ; 

 Leight. Lich. Fl. G. B. 92. 



Fig :— Ach. Act. Holm. 1797. 1. 11. f, 3, A, B, E, p. K. 



Exs :-Mudd 47 ; Leight. 73. 



Bot. Pbov :-l, 2...5, 6...10...15...26. 



England :— Koseberry Topping ! Howden Gill ! Cleveland. Mr. Mvdd. Whit- 

 simeliife ! near Thirsk, Yorkshire. Mr. Baker. Shanklin Church ! Isle of 

 Wight. Bev. T. SaVwey. Bovisand. Plymouth! Mr. Holmes. Gulsal Carne, Pen- 

 zance ! Mr. Curnow. Caer Caradoc !, Shropshire. 



Scotland : — Coast of Kincardineshire (fruit). Bev. J. M. Crombie. 



Ieeland : — Letterfraek Bay ! River Dawros ! co. Galway. Mr. Larbalestier. 



Wales :—Iilanbedrog ! Pen Cow! Forthill ! near Fishguard. Pembrokeshire. 



Forma emplecta, Ach. lacinice attenuate, excessively branched, 



acuminate and granulate at the apices. 



On rocks. 



Syn :— Ach. Syn. 295 ; Nyl. Mon. Eamal. 51. 



Fig :— Ach. Act. Holm. 1797. t. 11. f. 8. o. p. z. 



Geog. Distbib : — Sweden and W. France. 



Bot. Pbov :— 15. ..31. 



Scotland : — Morrone and Braemar ! Bev. J. Crombie. 



Channel Islands : — The Warren ! Noirmont, Jersey. Mr. Zarialestier. 



Forma depressa, Cromb. ccespitose, lacinise shwt, stunted, adnate. 

 On maritime rocks. 

 Syn :— Crombie in Journ. Bot. N. s. 1. 72. 

 Bot. Pbov :— 1, 2... 15— 31. 



England — Polperro and Tintagel, Cornwall ; between Brighton and Ports- 

 down (fruit). Mr. Forster. 

 Scotland : — Coast of Kincardineshire. Bev. J. M. Crombie, 

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



7. R. pollinaria, Ach. pale straw-colour or whitish, or albido- 

 glaucescent, densely ccespitose, membranaceo-laciniose ; lacinice short, 

 dilated and compressed, somewhat shining, sublacunose or lacunoso- 

 corrugate, flaccid, covered with broad white farinoso-sorediate, con- 

 fluent patches ; cortical layer filamentose ; medulla K — ; apothecia 

 marginal and terminal ; receptacle unequal ; spores 8, colourless, 

 oblong, straight or gibbous, 1-septate ; spermogonia in pale colour- 

 less receptacles. 



On trees, palings, rocks, &c, rare in fruit. 



Syn:— B. pollinaria, Ach. Syn. 298 ; Nyl. Mon. Ramal. 52 ; Leight. Not. 

 Lich. 35 ; Crombie 1. c. 73. 



Geog. Distbuj : — Europe, Africa. 



" Spores .010—15 mm. long, .004—6 mm. broad." (Nyl.) 



