RA.MALIXA.] RAMALINKI. 107 



Channel Islands, S.W. England, and N.W. Ii eland. B. M. : La Moye, 

 Island of Jersey. Near Penzauce, Cornwall. Near Kenvyle, Coniie- 

 niara, co. G.ihvay. 



10. R. subfarinacea Nyl. Flora, 1873, p. 66. Thallus csespi- 

 tose, suberect, shining, smoothish, rigid and fragile when dry, pale- 

 greenish or greenish-grey ; laciniae lineari-attenuate, short, roundly 

 compressed, usually much divided towards the apices, pulverulento- 

 sorediiferous (medulla and soredia K-f yellowish and then rusty- 

 red). Apothecia small, marginal and subterminal, at length con- 

 vex, the receptacle subsmooth ; spores oblong, straight, 0,012-15 

 mm. long, 0,004-6 mm. thick. Cromb. Grevillea, xv. p. 47. 

 Hamalina scopulorum var. subfarinacea Nyl. ex Cromb. Journ. Bot. 

 1872, p. 74 ; Leight. Lich. Fl. ed. 2, p. 470, ed. 3, p. 89. Rama- 

 Una calicaris S. thraiuta Mudd, Man. p. 73 ; Leight. Lich. Fl. p. 94 

 pro parte ; Cromb. Lich. Brit. p. 25. Brit. Exs. : Cromb. n. 23 ; 

 Larb. Lich. lib. n. 323. 



This looks as if related to R. farinacea, but the structure of the cortex 

 and tli3 chemical reaction, as well as the general habit and place of 

 growth, show its affinity to be rather with R. scopulorum, to which it 

 holds the same relation as R. farinacea has to R, calicaris. Sometimes 

 it spreads extensively over the substratum, while at other times it occurs 

 only in small tufts. It is very rarely fertile in Great Britain, the spermo- 

 goues having the spermatia as in the preceding species. 



Hub. On rocks and old walls in maritime and upland districts. Distr. 

 General, and common where it occurs, on the rocky sea-coasts of the 

 Channel Islands and Great Britain, also in the mountainous tracts of 

 England and Scotland ; no doubt also in Ireland. B. M. : La Coupe, 

 Island of Jersey ; Islands of Sark and Alderney. Near Plymouth, Ivy 

 Bridge, and Dartmoor, Devonshire ; near Penzance, Cornwall (frt.) ; 

 Annet Island, Scilly (frt.) ; Malvern Hills, Worcestershire ; near Dol- 

 gelly and Harlech Castle, Merionethshire ; Moel-y-golfa, Montgomery- 

 shire; Beddgelert and Snowdon, Carnarvonshire; Long Mynd, Shrop- 

 shire ; Langbraugh, Cleveland, Yorkshire ; near Staveley, Westmoreland ; 

 near Ilexham, Northumberland ; St. Bees, Cumberland. Black Island 

 (frt.) and Airds, Appin, Argyleshire ; Killin, Perthshire ; Banchory 

 Devenick, near Aberdeen ; Portlethen, Kincardineshire ; Applecross, 

 Bow-shire. 



11. R. cnspidata Xyl. Bull. Soc. Linn. Nortnand. ser. 2, iv. 

 (1870) p. 158. Thallus rigid, subcompressed and slightly shining, 

 smoothish or longitudinally unequal, lacunose and tuberculate, 

 lineari-laciniate, pale-greyish or pale straw-coloured ; lacinioe 

 simple or dichotomously branched (medulla K ). Apothecia with 

 the receptacle sometimes striatulate ; spores substraight or slightly 

 subcurved, 0,010-18 mm. long, 0,004-6 mm. thick. Cromb. Journ. 

 Bot. 1872, p. 74 ; Leight. Lich. Fl. ed. 2, p. 477, ed. 3, p. 89. 

 Ramalina tcopulorum /3. cuspidata Ach. Lich. Univ. (1810) r>. 305. 

 Ramalin'i scopulorum /5. cornuata Ach., Gray, Xat. Arr. i. p. 407. 

 Lichen siliquosus Huds. Fl. Angl. p. 460 ; With. Arr. ed. 3, iv. p. 40. 

 Coralloides fasciculare verrucosum et vduti siliqnosum Dill. Muse. 

 119, t. 17. f. 38. Lic7ien siliquosus, from specimens in herbaria, 



