OF GREAT BRITAIN. 253 



Syn :— Aoh. Syn. 26. (1817.) Nyl. Scand. 221. CrombieEn. 75. 



Fig :— Hepp. t. 57. f. 488. 



Exs ;— Schaer. 195. Hepp 488. Anzi Langob. 183. Am. 467. Crombie 90. 



Geog. Disteie : — Switzerland, Norway, Sweden, Lapland. 



Bot. Phov:— 15. 



Scotland :— Ben Lawers ; Ben Macdhui ; Summit of Cairn Gowar. Rev. J. 

 M. Crombie. 



Paraphyses thickish, numerous, distinct, but cohserent, bluish, apices pale. 

 I bluish then dirty-fulvescent. The thallus generally of a loose furfuraceous 

 character, the pale-fulvescent hypothecium, the distinct paraphyses with pale 

 apices, distinguish it from its allies L. assimilata, Nyl. (Fellm. 164. 165. &166.) 

 and L. alpestris, Smrft. both of which have a distinct granular thallus, and 

 the former has a dark-fuscescent hypothecium, turned nearly black by K, 

 with few indistinct paraphyses, fuliginous at the apices, whilst the latter has 

 a pale-fulvescent hypothecium -with distinct paraphyses, fuliginous at the apices, 

 and spores double in length. "Spores 0.011—18 mm. long, 0.004—6 mm. 

 broad." (Nyl.); "0.009—18 mm. long, 0.004-6 mm. broad." (T. M. Fr.) 

 Spores .012 — .013 mm. long, .0055 mm. broad. 



38. L. lutulata, Nyl. gellow-ochraceous, thin, leprose or indis- 

 tinct ; apothecia greenish-Mack, convex, immarginate, pale within ; 

 hypothecium colourless ; epithecium bluish ; paraphyses not dis- 

 crete ; spores 8, colourless, ellipsoid or oviform, simple ; gelatina 

 hymenea bluish and then tawny-wine-red with iodine. 



On maritime rocks, very rare. 1873. 



Syn :— Nyl. in Flora 1873. p. 297. 



Bot. Peov :— 31. 



Channel Islands : — Eozel meadow, Jersey ! Mr. Lcurbalestier. (1873.) 



The specimen communicated by Mr. Larbalestier does not agree with Dr. 

 Nylander's description in Flora, and has gonidia in the pale hypothecium. 

 Spores .009— .010 mm. long, .004—005 mm. broad. 



39. L.phyllodisca, Strtn. black, minutely granulose or scurfy, thin, 

 often scarcely visible ; apothecia black, moderate, often 2-3-aggre- 

 gate, and then undulate, sometimes conglomerate, margin shining, 

 thin, flexuose or sinuose, internally pallido-cinerascent or casruleo- 

 cinerascent (K purpurascent or rosy) ; spores 8, colourless, ellip- 

 soid, simple ; paraphyses distinct, nigro-clavate or cseruleo- 

 nigro-clavate ; hypothecium concolorous or sometimes darkly (1 — 4 ) 

 zonate ; gelatina hymenea I slightly -blue then vinoso-fulvescent or 

 sometimes vinoso-violet ; hymenium and hypothecium purpurascent 

 with nitric acid. 



On rocks, rare. 1875. 



Syn :— Stirton in Trans. Glasgow Soc. Nat. p. 86. 1875. 



Scotland : — Near Killicrankie. Dr. Stirton. (1875.) 



" Spores .007— .009 mm. long, .0045— .0055 mm. broad. Allied to L. phyllis- 

 coca/rpa, Nyl. Beneath the apothecia are often seen curious cushions composed 

 of yellowish granular matter." (Stirt.) 



40. L. chondrodes, Mass. white, thick, amylaceo-tartareous, 

 plicato-rugose, nigrescent, furfuraceous, (K — C — ) ,- apothecia vigro- 

 fuscous when dry, subsanguineous and transparent with a dark 

 circumferential ring when wet, foveolato -innate, or adnato-sessile, 

 plane, with a thin nigrescent margin ; hypothecium colourless or 

 slightly-fuscescent, with a narrow fuscous excipulum ; paraphyses 

 conglutinate, apices fuscous ; spores 8, colourless, narrowly-ellip- 

 soid, simple, large, oleoso-guttate. 



On calcareous rocks, not common, 1876. 



