90 



THE LICHEN-FLORA 



On maritime rocks, frequent. 



Dr. Nylander (1. c.) remarks : — '•Forsan non vere specie dig erat a R. scopu- 

 lorum, tamen pnesertim ob reactionem kalicam deficientem, seoisim hie est 

 exponenda." 



Syk : — R. seopulorurn var. cuspidata, Ach. L. IT. 605, Syn. 297. R. scopulorum, 

 Leight. Not. Inch. 35 ; R. euspidata, NyL Mon. Ramal. 60. Crombie. L c. 74. 



Fig : -Ach. Act. Holm. 1797. t. 9. f . 2. B ; Dill. 1. 17. f . 38. b. 



Exs :— Th. M. Fries. 1 ; Anzi ItaL Sup. 69 ; Schser. 554 ; Hepp 837 ; Leight 

 2; Rabh. 864. 



Geog. Distbtb : — Europe, Asia, Africa, North America. 



Bot. Pbov :— 1...6, 7...10...15. 



England : — Yorkshire !, Mr. Dixon. Blackingstone Bocks ! Lustleigh Cove ! 

 Babicombe ! Devon. Mr. Parfitt. Membury, Devon, DrMoll. Bovisand, Ply- 

 mouth ! Mr. Holmes. 



Scotland : — Kincardineshire ! Rev. J. M. Crombie. 



Wales : — Near Aberystwith. Mr. Forster. Bardsey Island, Carnarvonshire ! 

 Mr. Johnston. South Stacks! Holyhead. Gimlet Bock! Pwllheli. Manorbeer! 

 near Tenby. 



The specimens from the Sonth Stacks had the lacfruae small, subulate, snb- 

 simple, erect, with blackish apices bearing the apothecia. 



" Spores .010—18 mm. long, .004—6 mm. broad." (Nyl.) 



Var. crassa, Del. thick, rigid, tuberculoso-difformed. 

 Channel Islands : — Rocks under Vale Castle, Guernsey ! Mr. Larbalestier. 



11. R. intermedia, DeL very similar generally to E. scopulorum var. 

 subfarinacea, NyL but the apices more attenuated and divided, sore- 

 diate on the edges, cortical layer filamentose ; medulla K — , soredia 

 K yellow then red ; apothecia pale yellow, terminal, subtended by 

 a longish divaricate extremity of the lacinia ; receptacle smooth ; 

 spores 8, colourless, ellipsoid or oblongo-ellipsoid, straight, 1-septate. 



On heaths and thorns, rare. 1872. 



Syn :— Nyl. Mon. Eamal. 68. (1870). Crombie in Journ. Bot, n. s. 1. 133 

 Bot. Pbov :-1...26. 



Ibeland :— Killery Bay, co. Galway. Mr. Larbalestier. 

 Channel Islands : — Newlyn Cliff, Penzance, and Annet Island ! Scillv. 

 Mr. Curnow. (1872) ' 



12. R. Curnowii, Cromb. pale straw-colour, rigid, cartilaginous, 

 slender, fruticulose, smooth and shining, (K — C yellow, medulla 

 K — ) ; lacinia elongate,' roundish or somewhat compressed, spar- 

 ingly dichotomously branched in the lower part, more copiously 

 branched in the finely attenuated apices, slightly dilated at the 

 bifurcations, nigricant at the very base; apothecia pale, convex, 

 geniculato-adnate, subtended by a short divaricate branch ; recep- 

 tacle smooth ; spores 8, colourless, ellipsoid, straight, 1-septate ; 

 spermogonia externally black. 



On maritime rocks, not unfrequent. 



St>- :— NyL in Flora 1875 p. 44L 



Bot. Pbov :— L 



England : — Near Penzance and the Lizard, near the Land's End, Cornwall. 

 Mr. Curnow. 



Resembling R. euspidata but more copiously branched. About 8 centimetres 

 high. " Spores .011—15 mm. long, .004^6 mm. broad. Spermatia .003 mm. 

 long, .001 mm. broad." (Nyl.) 



13. R. geniculate!, Tayl. pallid or pale straw-colour, csespitose, sub- 

 fastigiato-rarrwse, subterete or sub-compressed, smooth or obsoletely 

 longitudinally subnervose, often perforated with minute round holes, 

 internally fistulose, branches attenuate ; apothecia pallido-testa- 



