PANNARIA. | LECANO-LECIDEEI. 337 
thallusis often squamoso-imbricate, and at the circumference the laciniz , 
are approximate and radiating. ‘The apothecia are chiefly central, nume- 
rous and crowded, becoming Tiger and deformed in age, with the margin 
at length flexuose. 
Hab. On the trunks of old trees, rarely among mosses on walls and 
rocks, in maritime and upland districts.—Distr. General and usually 
plentiful in most of the mountainous tracts of Great Britain, and probably 
also of Ireland.—B.M.: Island of Guernsey. Appuldurcombe, Isle of 
Wight; near Totnes, S. Devon; Bocconoc and near Respring, Cornwall ; 
Hay Coppice, Herefordshire ; Aberdovey, Merionethshire; Teesdale and 
Eglestone Woods, Durham; Windermere, Westmoreland; Keswick and 
Ennerdale, Cumberland. Inverary, Head of Loch Awe and Appin, Ar- 
Hendon Loch Lomond, Dumbartonshire; Glen Falloch and Glen 
ochay, Perthshire; Corriemulzie Falls, Braemar, Aberdeenshire ; 8. of 
Fort William, Inverness-shire ; Applecross, Ross-shire. Dunkerron and 
Old Dromore, co. Kerry ; Connemara, co. Galway. 
Var. ®. ceruleo-badia Mudd, Man. (1861) p. 122.—Thallus 
cxsio-pulverulent towards the centre, bluish-white ; lacinie pulve- 
rulent at the margins, Apothecia small, appressed, the thalline 
margin pulverulent; spores 0,016-0,020 mm. long, 0,007-12 mm. 
thick ; hymenial gelatine bluish (the thece at length wine-reddish) 
with iodine—Leight. Lich. Fl. p. 164, ed. 3, p. 151.—Lichen 
ceeruleo-badius Schl. Cent. 2 (1805), n. 71. Pannaria rubiginosa 
var. conoplea (Ach.), Cromb. Lich. Brit. p. 42. Parmelia plumbea 
y. tumescens Tayl. in Mack. Fl. Hib. ii. p. 142.—Brit. Evs.: Cromb. 
n, 54; Larb. Lich. Hb. n. 11. 
Looks almost a distinct species, but is connected with the type by in- 
termediate states. It is, however, in its most characteristic form, well 
distinguished by the densely granuloso-pulverulent (in old plants sore- 
diate) thallus, with the lacinie often visible only at the immediate cir- 
cumference. With us it is rarely fertile, and, even when present, the 
apothecia are few and scattered. 
Hab. On the trunks of old trees in maritime and upland districts.— 
Distr. General and not uncommon in the Channel Islands, 8.W. and N. 
England, N. Wales, W. Scotland, and S.W. Ireland.—B. M.: La Coupe, 
Island of Jersey; Island of Guernsey. Charlton Forest, Kent; St. 
Leonard’s Forest, and Black Down, Sussex; Newton Bushell, and near 
South Brent, Devonshire; Withiel, Cornwall; Barmouth, Merioneth- 
shire; Teesdale Forest, Durham ; Kentmere, Westmoreland. New 
Galloway, Kirkcudbrightshire; Barcaldine, Argyleshire; Glen Lochay, 
Killin, Aberfeldy, and Den of Rechip, Perthshire ; 8. of Fort William, 
Inverness-shire; Glenfernes, Nairnshire; Applecross, Ross-shire. Kil- 
larney, co. Kerry. 
2. P. brunnea Nyl. Mém. Soc. Cherb. ii. (1853) p. 324; Lich. 
Scand. p. 123,—Thallus suborbicular, granulato-squamulose, cervine 
or greyish-brown ; squamules small, crenate, densely imbricate ; 
hypothallus thin, arachnoid, greyish-white. Apothecia moderate 
or somewhat large, plane, red-testaceous or reddish-brown, the 
thalline margin crenulate; spores ellipsoid, 0,015-28 mm. long, 
0,007-11 mm. thick; hymenial gelatine bright-blue, then sordid- 
bluish with iodine.—Mudd, Man. p. 124, t. ii. £37; Cromb. Lich, 
Z 
