

B.EOMYCES.] B^OMTCETEI. Ill 



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 8nse (or 6nae), 

 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 S. and N. Scotland, more frequent among the Grampians. 

 B. M. : Corwen, Cader Idris, and Bannouth, 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-druiin, Ross-shire ; near 

 Lairg, Sutherlandshire. 



b. Apothecia subarachnoid within, veiled. 



3. B. roseus Pers. list. 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 8nae (or 6nse), 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 thecae pale 

 bluish with iodine. Gray, Nat. Arr. i. p. 412 ; Hook. Fl. Scot. ii. 

 p. 65 ; Sm. Eng. Fl. v. p. 137 ; Mudd, Man. p. 63, t. i. f. 12 ; 

 Cromb. Lich. Brit. p. 16 ; Leight. Lich. Fl. p. 53, ed. 3, p. 51. 

 Lichen Bceomyces 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. Coralloides fungiforme carneum, 

 basi leprosa Dill. Muse. 76, t. 14. f. 1. Lichenoides fungiforme, 

 crusta leprosa Candida capitulis et pediculis incarnatis Dill, in Hay, 

 Syn. ed. 3, 70. Lichen ericetorum Linn. Suec. (1755) would have 

 priority, but it refers chiefly to B. (entginosus. Brit. E.rs. : Leight. 

 n. 355 ; Mudd, n. 31 ; Cromb. n. 117. 



