122 LICHENACEL. [STEREOCAULON. 
and subalpine tracts.—D/str. General and common in all the mountainous 
regions ot Great Britain and Ireland, rare in the Channel Islands.— 
B. M.: La Moye, Island of Jersey. Near Mildenhall, Suffolk; near 
Buxton, Derbyshire; Battersby Moor, Cleveland, Yorkshire; Teesdale, 
Durham ; Housesteads, Northumberland. Doune, near Stirling; Auchter- 
house, Forfarshire ; Aberfeldy and Glen Fender, Perthshire; Portlethen, 
ye eetnerhne: Craig Guie, Braemar, Aberdeenshire. Mangerton, co. 
erry. 
Form condyloideum Nyl. Lich. Scand. (1861) p. 66.-—Thallus 
submoderate ; podetia rather longer, more or less branched, branches 
shortly ramuloso-divided at the apices.—Cromb. Lich. Brit. p. 17; 
Leight. Lich. Fl. p. 80, ed. 3, p. 72.—Stereocaulon condyloideum 
Ach. Meth. Suppl. (1803) p. 51; Sm. Eng. FI. v. p. 237. 
This differs in being somewhat larger, with the podetia more frequently 
and distinctly branched. The apothecia, which are usually ageregate and 
terminal, are sometimes also infixed on the subterminal branchlets. 
Hab. On turf-covered walls in upland districts.—Distr. Local and 
scarce in N. England and among the Grampians, Scotland.—B. M.: 
Housesteads, Northumberland. Ben Lawers and Glen Fender, Perth- 
shire. 
9.S. pileatum Ach. Lich. Univ. (1810) p. 582; Fr. fil. Lich. 
Scand. p. 51.—Thallus small; podetia very short, erect, slender, 
simple or sometimes sparingly branched, the axis glabrous ; granules 
squamulose or corallino-verruceform, usually conglomerate at the 
base, scattered on the podetia, greyish. Apothecia terminal, pileate, 
somewhat plane, at length slightly convex, brown or reddish-brown ; 
spores 3-septate, fusiform, obtuse at either apex, 0,018-30 mm. 
long, 0,0040-45 mm. thick.—Cromb. Grevillea, xv. p. 15.—Stereo- 
caulon condensatum var. cereolinum Cromb. Lich. Brit. p. 17 pro 
parte; Leight. Lich. Fl. p. 79, ed. 3, p. 72. Stereocaulon cereolinum 
Sm. Eng. FI. v. p. 233 pro parte; Mudd, Man. p. 67. Stereocaulon 
cereolus Borr. Eng. Bot., Suppl. t. 2667 descr. pro parte.—Brit. 
Eus.: Larb. Lich. Hb. n. 6. 
From 8. condensatum, of which it has been regarded as a variety, this 
is distinguished by the short and often nearly naked podetia, and by the 
structure of the apothecia. It still more closely resembles Pilophorus 
cereolus (Ach.), from which, however, it differs in the spores. The 
podetia are closely affixed to the substratum, and are often in barren 
plants sorediato-capitate at the apices. The cephalodia, which are 
situated towards the base of the podetia, are verrucose, olive-brown or 
dark-greyish, with the gonimia somewhat large or moderate, glomerulose. 
In the British specimens the spermoyones are sparingly present. 
Hab. On mountainous rocks in subalpine districts.—Distr. Rare and 
local in N. Wales, N. England, in 8,W. Scotland, the W. Highlands, 
and in N.W. Ireland.—B, M.: Cader Idris and Dolgelly, Merioneth- 
shire; Teesdale, Durham; Wastdale, Cumberland. New Galloway, 
Kirkcudbrightshire ; Ben Cruachan, Argyleshire; Glen Ample and Glen 
Lochay, Perthshire. Connemara, co. Galway. 
