406 THE LICHEN-1LORA 



forma rimalis, (Fr.) KreUae linear-elongate, acuminate, sessile, 

 prominent, minute ; epithecium canaliculate, margin elevated and 

 inflexed. 



On trees, ash, oak, hazel, elder, frequent. 



Not to be confounded with O. Turneri. 



Syn :— Fries L. Ref. 365. (1831.) Nyl. Scan. 253. Mudd Man. 231. 



Exs :— Leight. 192. Mudd 207. 



Geoo. Distbtb : — Sweden, France. 



Bar. Pbov :— 1, 2...8...10...15...(19— 30)...31. 



England : — Kildale ! Yorkshire. Mr. Mudd. (sasicole) Fulking Roadside ! 

 Sussex. Mr. Larbalestier. Gopsall, Leicestershire. Rev. A. Eloxam. Lyndhurst ! 

 New Forest. Rev. J. M. Crombie. Red Hills, Exeter. Mr. Parfitt. 



Scotland : — Blair Athole. Rev. J. M. Crombie. 



Ibeland : — Frequent. Mr. Carroll. 



Channel Islands : — Noirmont ; Belcroute Bay, Jersey. Mr. Larbalestier. 



forma herbicola, Nyl. lirellas very slender, spores somewhat 

 smaller. 



On dead stems of Osmunda regcdis and Calhina vulgaris, rare. 

 1876. 



Syn :-Nyl. in Flora 1877. p. 463. 



Bot. Pbov:— 6...26. 



Ibeland : — Doughruagh Mountain ! Galway. Mr. Larbalestier. (1876.) 



Wales :— Llyn Gwernan ! near Cader Idris. 



forma ochrocheila, Leight. margins of lirellce viridi-ochraceous. 

 On brambles, rare. 1877. 



Bot. Pbov :— 26. 



Ibeland : — Doughruagh Mountain ! Galway. Mr. Larbalestier. (1877.) 



17. 0. Ccesareensis, Nyl. white, thin, rimulose, indeterminate ; 

 lirellce black, cylindrical, prominent, simple, sub-flexuose ; epithecium 

 rimceformi-constricted ; spores 8, colourless, oblong, 5-septate. 



On quartzose rocks, rare. 



Syn :— Nyl. in Flora 1868. p. 477. Crombie En. 99. 



Geog. Distbib :— Europe. 



Bot. Pbov:— 1... 31. 



England : — The Lizard, Cornwall. Mr. Gurnow. 



Channel Islands : — Noirmont, Jersey ! E. coast of Jersey very near Rozel ! 

 Mr. Larbalestier. 



"Spores .016— 22 mm. long, .004— 5 mm. broad." (Nyl.) Spores .017— .021 

 mm. long, .004 mm. broad. 



18. 0. areniseda, Nyl. thallus scarcely any or most obsoletely 

 -externally visible ; lirellce black, linear, subgyrosely conglomerate 

 in difformed pulvinate heaps, epithecium narrow ; spores 8, colour- 

 less, fusiform, 3-5-septate ; hypothecium black ; gelatina nymenea 

 I vinoso-rubescent. 



In crevices of walls, rare. 1873. 



Syn :-NyL in Flora 1875. p. 446. 



Bot. Pbov :— XL, 



Channel Islands : — St. John's, Jersey. Mr. Larbalestier. (1873.) 



' ' Spermogonia heaped together in small black glomerules ; spermatia straight, 

 .0035—45 mm. long, .0010 mm. broad. Spores .014—16 mm. long, .004 mm 

 broad." (Nyl.) 



19. O vulgata, Ach. greenish^iuhite, cartilagineo-membrana- 

 ceous, cracked and scaly, effuse ; lirellce prominent and sessile, 

 variable in size, shorter ones roundish or oblong, longer ones slender 



