Rev. W. A. Lcigliton on the Genus Ramalina. 131 



medulla K — ; apotliecia marginal and terminal ; receptacle 

 unequal] sjwres 8, colom-less, oblong, straight or gibbous^ 

 1-septate ; spermogonia in pale colomdess receptacles. 



On trees, palings, rocks, &c. 



Syn. R. polUnaria, Acli. Syn. 298 ; Nyl. Mon. Ramal. 52 ; 

 Leight. Lich. Fl. G. B. 95. 



6^60^. distrib. Europe, Africa. 



Forma elatior^ Acli. Lacinke suherect^ elongate^ plane, siih- 

 linear^ attenuate and albo-pulverulento--S(9r6(/ia/e at the apices. 

 Fig. Ach. Act. Holm. 1797, t. 11. f. 2, A, b, c, f. 

 Exs. Scliter. 393 ; Hepp, 564, 565 ; M. & N. 546. 

 England. Caer Caradoc !, Hauglmiond Hill !, Shropshire. 



Forma luunilis^ Ach. Memhranaceo-dilated^ laciniose, with 

 broad, confluent, powdery white sored ia. 



Fig. Ach. Act. Holm. 1797, t. 11. f. 2, d, e. 



Exs. Leight. 41 ; Mudd, 46. 



England. Gopsall !, Leicestershire, i^ey.^.i^^oo'ajw; Ingleby!, 

 Cleveland, Mr. Mudd ] Haughmond Hill !, Shropshire. 



8. R. scopulorum (Dicks.). Pale straw-colour, rigid, carti- 

 laginous, shining; lacinice elongate, linear, subtereti-compressed, 

 simple, or branched at the apex, attenuate ; cortical layer solid, 

 external portion amorphous, internal portion filamentose ; me- 

 dulla K yellow, then ferruginous red; apotliecia marginal and 

 subterminal ; receptacle nearly smooth ; spores 8, colourless, 

 oblong, straight, 1-septate ; spermogonia in pale colourless 

 receptacles, sometimes nigricant. 



On maritime rocks, rare. 



Syn. Lichen scopulorum, Dicks. Crypt. Brit. 3. 18. U. sco- 

 pulorum, Ach. L. U. 604, Syn. 297 ; Nyl. Mon. llamal. 58 ; 

 Leight. Lich. Fl. G. B. 91 (in part). 



Fig. E. Bot. 688; Nyl. Syn. t. 8. f. 29. 



Exs. Larbal. 13; Bold. 112. 



Geog. distrib. Europe, Africa. 



England. Lamorna Cove, Cornwall, Mr. Knapp ; Land's 

 End, Messrs. Turner & Sowerby. 



Scotland. Mr. Dickson (1. c). 



Channel Islands. Grosnez Common, Jersey !, Mr. Larba- 

 lestier. 



9. R. cuspidata (Ach.). Pale straw-colour, rigid, cartilagi- 

 nous, shining ; lacinice elongate, linear, compressed, more or 

 less longitudinally striato-nervose, lacunose, and sorediato- 

 tuberculate, simple or dichotomously branched; cortical layer 

 solid, external portion amorphous, internal portion filamentose; 

 medulla K — ; apotliecia marginal and subterminal ; receptacle 



