156 LlCIlENACKr. [CLADO.NIA. 



minute glaucous squamulcs, .slightly pervious at the axils and lacero- 

 radiate, the apices subulato-furcate. — Cromb. (Trevillea. xv. p. 45, 

 xi. p. 113 (^ut subsp.j. — Clndonia fjlauca Plurke, Clad. (1828) 



p. i4i:». 



Differs perhaps a.«s a subspecies in the colour of the podetia and the 

 foi-m of thfir apices. In our only two British specimen.-! the podetia are 

 almost entirely furi'uraceous, with a few scattered squamules towards 

 the ba.se. The apothecia, which are small, dark-brown, are very rarely 

 present. 



Hab. Anionir rai sses on putrid stumps in mountainous districts. — 

 Distr. Extremely local and scarce in X. Wales and the S.W. Highlands 

 of Scotland. — B. M. : lihewgreiddeu, Merionethshire. Glen Creran, 

 Arg-yleshire. 



25. C. scabriuscula Xyl. Flora, 1870, p. 447. — ThaUus squa- 

 mulose at the b ise, the syuaintdes small, often evanescent ; podetia 

 CEespitose, slender, erect or curved, scabrid, more or less minutely 

 squaniulose. divaricately branched, greyish-white, the brauche.s 

 subalternate, recurved and furcate at the apices (K-|- yellowish, 

 CaCl — ). Apothecia moderate, terminal, brown. — Cromb. Journ. 

 Eot. 1876, p. 360 ; Loight. Lich. Fl. ed. 3, p. 61. — C'enomyce 

 scahriu.scaJa Del. in Dub. Bot. Gall. ii. (1830) p. iy23. 



This approaches on the one hand subsp. C. raccmasa f. recurva {tenuior) 

 and on the other subsp. C. ailspersa of the following species. From 

 both, however, it is separated by the podetia and the reaction with K, 

 so that it may with propriety be regarded as holding an intermediate 

 specitic place. In our British specimens there are only a few young 

 apothecia. 



Hab. On mossy rocks and old walls in maritime and upland districts. 

 — Distr. Found only in the Channel Islands, S.W. England, S. Scotland, 

 and the W. Highlands. — B. M. : Noirmout, Island of Jersey. Near 

 Beckey Falls, Devon.<hire : near Penzance, Cornwall. Xew Galloway, 

 Kirkcudbrightshire ; Barcaldine, Argyleshire ; Loch Linnhe, Lochaber, 

 Inverness-shire. 



26. C. squamosa HofFm. Deutsch. Fl. (1795) p. 125. — Thallus 

 foliaceo-squamulose at the base ; squamules creuate or iuciso- 

 crenate, greyish-white or pale above, white beneath ; podetia cylin- 

 drical, branched, more or less covered with minute leaflets or furfu- 

 raceous squamules, the axils pervious, dentate and proliferous at 

 the apertures; apices somewhat furcate or, when fertile, radiato- 

 cristato, suboorj-mbose (K — , CaCl — ). Apothecia small, pale or 

 reddish-brown : spores 0.010-13 mm. long, 0,<i035 mm. thick. — 

 :\Iudd, Man. p. 56, Brit. Clad. p. 19 ; Cromb. Lich. Brit. p. 20 ; 

 Leight. Lich. Fl. p. 66, ed. 3, p. 61. — Sc'/jiJiophonis .'tpai'assvs 8m. 

 Eng. Fl. V. p. 237. Cenomyce sparassa Hook. Fl. Scot. ii. p. 64 ; 

 Tayl. in Mack. Fl. Hib. ii. p. 80. ScJiosinaria sjjara.^a Gray, Nat. 

 Arr. i. p. 416. Lichen .ijMrassus Eng. Bot. t. 2362. — Brit. E.vs. : 

 Mudd, n. 13 : Cromb. n. 124 ; Larb. Cicsar. n. Id pro parte. 



