BHOMYCES. | BHOMYCETEL. 111 
time and upland situations.—Distr. Local and scarce in the Channel 
Islands, S, and S.W. England; more plentiful among the Grampians.— 
B. M.: Rozel, Island of Jersey. Dartmoor, Devonshire ; near Bodmin, 
Cornwall. Menstrie Glen, near Stirling ; Glen Lochay, Schiehallion, and 
Rannoch, Perthshire ; Glen Girnac, Braemar, Aberdeenshire, 
2. B. placophyllus Ach. Meth. (1803) p. 323, t. 7. f. 4. —Thallus 
orbicular, crustaceo-imbricate and corrugato-plicate in the centre, 
squamoso-lobed and crenate at the circumference, glaucescent or 
whitish (K+yellow). Apothecia moderate or small, slightly con- 
vex, reddish- or brownish-flesh-coloured (K—); stipes short, com- 
pressed, white, often divided at the apex; spores 8ne (or 6nx), 
oblongo-ellipsoid, simple, 0,010-15 mm. long, 0,002-4 mm. thick; 
hymenial gelatine not tinged with iodine.—Sm. Eng. Fl. v. p. 137; 
Mudd, Man. p. 63; Cromb. Lich. Brit. p.16; Leight. Lich. Fl. 
p. 53, ed. 3, p. 51. ; 
In general aspect the sterile plant resembles Physcia pityrea, but the 
thallus is opaque and more entire, glaucous when moist, and the habitat 
is entirely different. The apothecia, which are very rare and seldom fully 
developed in Great Britain, are central, several being aggregate and 
almost confluent on the divided apex of the stipes. 
Hab. On gravelly soil among heaths in upland moorland districts.— 
Distr. Local and scarce in the mountainous tracts of N. Wales, N. Eng- 
land, and 8. and N. Scotland, more frequent among the Grampians.-— 
B. M.: Corwen, Cader Idris, and Barmouth, Merionethshire ; Eglestone, 
Durham ; Mardale, Westmoreland. New Galloway, Kirkcudbrightshire ; 
Ben Lawers and Falls of Bruar, Perthshire; Morrone, Braemar, Aber- 
deenshire ; Glen Nevis, Inverness-shire ; Ach-na-druim, Ross-shire ; near 
Lairg, Sutherlandshire. 
6, Apothecia subarachnoid within, veiled. 
3. B. roseus Pers. Ust. N. Ann. i. (1794) p. 19.—Thallus granu- 
loso-crustaceous, effuse or determinate, white (Kf+yellow). Apo- 
thecia nearly globose, moderate, rose- or pale flesh-coloured (K + 
orange); stipes short, rounded, white; spores Snz (or 6nz), fusi- 
formi-oblong or fusiform, simple or sometimes obsoletely 1-septate, 
0,011-26 mm. long, 0,0025-0,003 mm. thick ; paraphyses slender ; 
hymenial gelatine scarcely tinged, but the apices of the thece pale 
bluish with iodine.—Gray, Nat. Arr. i. p. 412; Hook. FI. Scot. ii. 
p. 65; Sm. Eng. Fl. v. p. 187; Mudd, Man. p. 63, t.i. £12; 
Cromb. Lich. Brit. p. 16; Leight. Lich. Fl. p. 53, ed. 3, p. 51. 
Lichen Beomyces Eng. Bot. t. 374. Lichen ericetorum Linn. Huds. 
Fl. Angl. p. 443 pro parte; Lightf. Fl. Scot. ii. p. 809 pro 
parte; With. Arr. ed. 3, iv. p.14. Corallocdes fungiforme carneum, 
basi leprosa Dill. Muse. 76, t.14. f£. 1. Lichenoides fungiforme, 
crusta leprosa candida capitulis et pediculis incarnatis Dill. in Ray, 
Syn. ed. 3, 70. Lichen ericetorum Linn. Suec. (1755) would have 
priority, but it refers chiefly to B. eruginosus.—Brit. Exs.: Leight. 
n. 355; Mudd, n. 81; Cromb. n. 117. 
