120 LICHENACEI. [STEREOCAULON. 
apothecia are more scattered, usually larger and terminal. In this country 
it is rarely and very sparingly fertile. 
Hab. On the ground and on boulders in subalpine districts Distr. 
Local and scarce among the Scottish Grampians and in W. Ireland.— 
B. M.: Ben Lawers and Ben Vrackie, Perthshire ; Morrone and Benna- 
boord, Braemar, Aberdeenshire. Kylemore and Connemara, co, Galway. 
7. S. denudatum Flérke, Deutsch. Lich. Lief. iv. (1819) p. 13.— 
Thallus somewhat small or moderate ; podetia nearly erect, slender, 
smooth, loosely aggregate, somewhat simple or branched above, 
attenuate at the apices, the axis naked; podetial granules subpel- 
tate, at first subrounded, then applanate and depressed in the 
middle, whitish or greyish-white, darker in the centre, the margin 
usually crenulate, white. Apothecia small, lateral, plane or some- 
what convex, brownish ; spores elongato-fusiform, 3- (rarely 5-) 7- 
septate, 6,026-46 mm. long, 0,003-4 mm. thick—Mudd, Man. 
p. 66; Cromb. Lich. Brit. p. 17; Leight. Lich. Fl. p. 79, ed. 3, 
p. 71.— Coralloides crispum et botryforme alpinum Dill. Muse. 114, 
t. 17. £. 33. Lichenoides non tubulosum, cinereum ramosum totwn 
crustaceum Dill. in Ray, Syn. ed. 3, 66.11. S. paschalis pro parte 
of some authors.—Brit, Evs.: Larb. Lich. Hb. n. 244. 
Easily distinguished from other British species by the subpeltate gra- 
nules with whitish margin, and by their paucity or absence towards the 
apices of the podetia. The cephalodia are olive-brown, somewhat shining, 
glomerulose or verrucose, with the gonimia sordid glaucous-green. In 
this country the apothecia are rare, nor are the spermogones very fre- 
quent, the spermatia being 0,008-9 mm. long, 0,005 mm. thick. On the 
podetia are commonly seen the pulvinuli of Sirosiphon saxicola Naeg. 
Hab. On rocks and boulders from upland to alpine situations.—Distr. 
General and frequent in the more mountainous districts of Great Britain 
and Ireland; very abundant among the Grampians in Braemar.—B. M. : 
Cawsand Beacon and Sharpitor Rock, Dartmoor, Devonshire; Plynlim- 
mon, Cardiganshire ; Cader Idris, Merionethshire ; Snowdon, Carnarvon- 
shire; Island of Anglesea; Mynydd-y-Myffe, Shropshire; Teesdale, 
Durham; Stavely Head, Westmoreland ; Ennerdale, Cumberland. Ben 
Lawers and Rannoch Moor, Perthshire ; Sidlaw Hills and Clova, Forfar- 
shire; Glen Candlic, Cairn Drocbit and Ben-naboord, Braemar, Ben 
Nevis, Inverness-shire ; Island of Skye; Applecross, Ross-shire; Lairg, 
Sutherlandshire. Killarney, co. Kerry; Kylemore, Connemara, co. Gal- 
way. 
Form 1. validum Laur. in Fr. Lich. Eur. (1831) p. 205.—Thallus 
larger, ceespitose ; podetia thicker, divided towards the base into 
elongate branches; granules aggregate and sometimes discoid. 
This is larger, with more robust and csspitose podetia, and crowded 
and often somewhat large granules. It occurs only sterile. 
Hab. On schistose rocks in alpine situations.—Distr. Very local and 
scarce, among the 8. Grampians.—B. M.: Ben Lawers, Perthshire. 
Form 2. capitatum Flot. in Koerb. Syst. (1856) p. 13.—Podetia 
sorediate and somewhat turgid at the apices. Apothecia arising 
from the soredia. 
