214 CYCLOCARPINE [PLACODIUM 
Scotland and W. Iveland.—B. M. Thetford Warren, Nerfolk; Kildale, 
Cleveland, Yorkshire; Craig Tulloch, Blair Athole, Perthshire ; Craig 
Guie, Braemar and Park, Aberdeenshire ; ; Lough Inagh, Connemara, 
Galway. 
f. pictum A. L. Sm.—Thallus thin, greyish, evanescent. 
Apothecia brightly yeliow-pruinose, with a thickish reflexed 
proper margin.—Lecidea picta Tayl. in Mackay FI. Hib. ii. 
p. 130 Segge Lecanora pyracea var. pyrithroma Leight. aes 
Fl. p. 22 (1871) (non Ach.) ; ed. 3, p. 212; f. picta Cromb. 
Grevillea xvill. p. 46 (1889) & Monogr. i. p. 384: 
Exsice. Johns. n. 366; Larb. Lich. Hb. n. 55. 
Distinguished by the bright-yellow pruina of the apothecia, which, 
however, tends to disappear in herbaria. 
Hab. On schistose rocks in mountainous regions.—Distr. Rare in 
N. Wales, the Scottish Grampians and in W. Iveland.—B. M. Garth 
Road, Anglesea; Ben Lawers and Craig Calliach, Perthshire; Craig 
Mt., Kerry ; Lettermore and Lough Inagh, Connemara, Galway. 
Var. lacteum A. L. Sm.—Thallus thin, chalky-white. 
Apothecia small, orange-red, becoming convex. — Callopisma 
luteoalbum var. lacteum Massal. Sched. Crit. Lich. p. 133 (1855). 
Lecanora pyracea var. lactea Stizenb. Lich. Helv. p. 98 (1882) ; 
Cromb. Monogr. i. p. 384. 
Exsicc. Johns. n. 402. 
Distinguished by the whitish thallus. The apothecia are congre- 
gate in small groups in our specimens. 
Hab. On caleareous rocks in maritime districts.—Distr. Very rare 
in N.E. and N.W. England.—B,. M. Hartlepool, Durham ; Egremont, 
Cumberland. 
Var. holocarpum <Anzi 1. ¢.—Thallus ‘scanty, greyish, or 
obsolete. Apothecia crowded, orange-yellow; spores broadly 
ellipsoid, 10-14 p long, 6—10 p thick.—Lichen holocarpus Ehrh. 
Exsice. n. 284 (1793) nomen nudum; Ach. Lich. Suec. Prodr. 
p. 73 (1798). Callopisma luteoalbum var. holocarpum Mudd Man. 
p. 137 (1861) pro parte. Lecanora cerina subsp. holocarpa Ny). 
Lich. Scand. p. 145 (1861); L. pyracea subsp. holocarpa Cromb. 
Lich. Brit. p. 47 pro parte; var. holocarpa Leight. Lich, FI. 
p. 222 (1871) pro parte ; ed. 3, p. 211 pro parte. 
Exsice. Johns. n. 35; Larb. Lich. Hb. n. 132. 
Crombie and others hold that the grey thallus does not belong to 
the lichen; the apothecia in that case would be saprophytic on “the 
timber, ete., or on other lichens. 
Hab, On old timber, rarely on rocks, generally in upland situa- 
tions.— Distr. Rather rare in N, England and in the Highlands of 
Scotland.—B. M. Near Cambridge; near Loftus (saxicolous) and near 
Ayton, Cleveland, Yorkshire ; Morpeth and Chollerford, Northumber- 
land; Achmore, Killin, Perthshire ; Rothiemurchus, Invernessshire. 
