242 LICHENACEI, [PARMELIA. 
General and common in the mountainous tracts of Great Britain, espe- 
cially in the Scottish Highlands; apparently rare in 8. and W. Ireland 
and in the Channel Islands—B. M.: Island of Alderney. Eridge Rocks 
and Ardingley, Sussex; New Forest, Hampshire; near South Brent, 
Devon; near Penzance and Helminton, Cornwall; Savernake Forest, 
Wiltshire ; Charnwood Forest, Leicestershire; Malvern, Worcestershire ; 
Black Edge, Buxton, Derbyshire; Wrekin Hill, Shropshire ; Lambeth, 
S. Wales; Barmouth and near Dolgelly, Merionethshire; Cleveland, 
Yorkshire; Kentmere, Westmoreland; Keswick, Cumberland. Dal- 
mahoy Crags, near Edinburgh; near Helensburgh, Dumbartonshire ; 
Appin, Argyleshire; Ben Lawers and near Dunkeld, Perthshire; Clova 
and Cortachy, Forfarshire; Crathes, Aberdeenshire ; Glen Callater, Mor- 
roue, and Ben Avon, Braemar, Aberdeenshire; Glen Nevis, Inverness- 
shire. Lambay Island, near Dublin; near Cork; Dunkerron, co. Kerry ; 
Kylemore, co. Galway. 
11. P. suleata Tayl. in Mack. Fl. Hib. ii. (1836) p. 145.— 
Thallus orbiculari-expanded, membranaccous, smoothish, not isidii- 
ferous, irregularly imbricate, reticulato-sorediate, greyish or glau- 
cous-white, the soredia sulciform, rotundato-oblong or linear, mar- 
gined, whitish (KTS oTe hen blood-rea, CACL). Apothecia and 
spores as in the preceding species.—Cromb. Grevillea, xv. p. 75.— 
Parmelia saxatilis var. suleata Cromb. Lich. Brit. p. 34; Leight. 
Lich. Fl. p. 188, ed. 3, p. 126. Parmelia saxatilis 3. leucochroa 
(Wallr.) Mudd, Man. p. 94. Lichenoides vulgatissimum cinereo- 
glaucum, lacunosum et cirrhosum Dill. Muse. 188, t. 24. f. 83 B.— 
— Brit. Exs.: Leight. n. 203 ; Mudd, n. 66; Cromb. n. 28. 
Distinguished from P. saxatilis by the soredia and the absence of isidia. 
The thallus often spreads extensively and varies in the breadth of the 
laciniz ; short and broad states are form roseformis Ach, (Lich. Univ. 
p.470). The apothecia are moderate, and sometimes have rather smaller 
spores than in the preceding species. They are comparatively rare in 
Britain as elsewhere, nor are the spermogones frequent in our specimens. 
Hab. On trees and old walls, chiefly in maritime and upland districts.— 
— Distr. General and usually plentiful in Great Britain and Ireland; rare 
in the Channel Islands; fertile chiefly in the Highlands of Scotland. 
B. M.: Island of Guernsey. Epping and Hainault Forests, Essex ; New 
Forest, Hants; Penzance and Withiel, Cornwall; near Cirencester and 
Sapperton, Gloucestershire; Darley, Derbyshire; Grimsbury Green, 
Northamptonshire; Ludlow, Shropshire; Harboro’ Magna, Warwick- 
shire; near Hopton, Cheshire; Cleveland, Yorkshire; Kendal, West- 
moreland ; near Hexham, Northumberland. Dalry, Kirkcudbrightshire ; 
Preghorn and Craig Lochart, near Edinburgh; Barcaldine, Argyleshire ; 
Loch Katrine and Killin, Perthshire ; Den of Murtle, near Aberdeen ; 
8. of Fort William, Inverness-shire; Applecross, Ross-shire. Rostellan, 
co. Cork; Dunkerrcn, co. Kerry. 
Var. 3. levis Nyl. Syn. i. (1860) p. 389.—Thallus smooth, eso- 
rediate, glaucous- or greyish-white ; beneath black, denscly rhizineo- 
fibrillose ; lacinie narrow, more divided and discrete, greyish or 
brownish at the apices. Apothecia not seen.—-Cromb. Journ. Bot. 
1375, p. 140. 
