164 LICHESACEl. [CLADONIA. 



(1708) p. 194; Eng. Bot. t. 1894. Lichen cornutus e. Lightf. Fl. 

 Scot. ii. p. 876. Coralloides vix ramosum, scyphis olscuris Dill. 

 Muse. 90, t. 15. f. 14F. Coralloides scyphiforme, ossis femoris facie 

 Dill. Muse. 91, t. 15. f. 15. To this also is referable Cladunia 

 vestita Leight. Ann. Mag. Nat. Hist. ser. 3, xix. (1867) p. 117, 

 Lich. Fl. p. 67, ed. 3, p. 62. 



From C. cocci/era this differs in the longer (2-3 in.), slender, and more 

 squamulose podetia, as also in the absence of any chemical reactions. 

 As observed, however, by Fries til. (Lich. Scand. p. 05), specimens from 

 more arctic regions are with K (CaCl) distinctly yellowish. This is also 

 occasionally the case with specimens growing at high altitudes on the 

 Scottish mountains, whence C. vestita Leight., which is nothing typical, 

 and differs in the diagnosis from var. vestita Ach. Lich. Univ. p. 541. 

 The basal squamules or leaflets are often glaucous and occasionally some- 

 what large, while the podetia are frequently brownish at the base and 

 sometimes proliferous. The apothecia are usually numerous, of a fine 

 scarlet colour, though occasionally, as in the other species of this section, 

 becoming denigrate. 



Hob. On peaty soil among mosses in upland, but chiefly in subalpiue 

 and alpine districts of mountainous regions. Distr. Local and scarce in 

 \V. and N. England and N. Wales ; more frequent among the Scottish 

 Grampians ; doubtful in E. Ireland. B. M. : Hustyn Down, Cornwall ; 

 Diffwys, near Barmouth, Merionethshire ; the Cheviots, Northumberland. 

 Ben Cruachan, Argyleshire ; Ben Lawers and Rannoch, Perthshire ; near 

 Loch Phadrig in Gl'en Callater, and Cairngorm, Braemar, Aberdeenshire ; 

 Ben Nevis, Inverness-shire. 



Form 1. gracilenta Florke, Clad. (1828) p. 99. Podetia elon- 

 gate, slender, branched : scyphi dilated, dentato-radiatc at the mar- 

 gins, substerile. Cromb. Lich. Brit. p. 2\. Cladonia cocci/era ft. 

 btttidiflora b. gracilenta Mudd, Brit. Clad. p. 29. Cenomyce cocco- 

 cepliala . gracilenta Ach. Lich. Univ. (1810) p. 542. 



Differs only in having the podetia more slender, branched (2-4 

 divided), and in being substerile, with the apothecia seldom rightly 

 developed. 



near Loch Phadrig, Glen Callater, and on Ben-riaboord, Braemar, Aber- 

 deenshire. 



ft. Hookeri Nyl. Syn. i. (1860) p. 221. Podetia glabrous, 

 unequally corticate, esquamulose, or occasionally here and there with 

 a few small sqnamules. Apothecia large. Cromb. Grevillea, xi. 

 p. 114. Cladonia Hoolccri Tuck. Syn. (1845) p. 55. 



Characterized by the naked or almost entirely naked podetia In the 

 only British specimen seen these are about 1 in. high, robust, entirely 

 esquamulose, with the apothecia somewhat large, conglomerate, and 

 having a few minute squamules intermixed. 



Hah. On the ground in subalpine moorlands. Distr. Very local and 

 rare, having been seen only from one locality among the N. Grampian*, 

 Scotland. B. M. : Glen Candlic, Braemar, Aberdeenshire. 



