PERTUSARIA | PERTUSARIACEE 375 
British Isles.—B. M. Boconnoc and Withiel, Cornwall; near Totness 
and Lustleigh, Devon; New Forest, Hants; St. Leonard’s Forest, 
Tilgate and Chanctonbury, Sussex; Penshurst, Kent; Epping and 
Hainault Forests, Hadleigh Woods, Messing, Weald Hall and Mark’s 
Hall, Essex; Sotterly, Ugley and Yarmouth, Suffolk; Batheaston, 
Somerset; Charnwood Forest, Leicestershire; Dolgelly and Aber- 
dovey, Merioneth; Capel Curig and near Conway, Carnarvonshire ; 
Trefriw, Denbighshire; Oswestry and Llanyblodwell, Shropshire ; 
Ingleby Park, Cleveland, Yorkshire; Teesdale, Durham; Calder 
Abbey, Keswick and Greenbank, Whitehaven, Cumberland ; Bareal- 
dine, Argyll; Aberfeldy, Craig Calliach and Blair Athole, Perthshire ; 
Durris, Kincardineshire; Craig Cluny, Braemar, Aberdeenshire ; 
Castlebernard Park, Cork; Dinish, Killarney, Kerry; Belclare, Mayo. 
Form carnea Fr. Lich. Eur. p. 424 (1831).—Thallus as in the 
species. Apothecial disc protruding, tumid and flesh-coloured.— 
Cromb. in Grevillea xix. p. 59 (1891) & Monogr. i. p. 506. 
Thelotrema hymenium var. carneum Turn. & Borr. Lich. Brit. 
p- 185 (1839). 
Probably only a growth condition, and perhaps due to extremely 
moist conditions. 
Hab. On trees.—Distr, Local and rare in 8. England.—2. M. New 
Forest, Hants; Eridge Park, Tunbridge Wells, Sussex; Toy’s Hill, 
Canterbury, Kent. 
Form sparsilis Cromb. Monogr. i. p. 506 (1894).—Thallus 
very scanty or obsolete, whitish, the fertile verruce scattered, 
otherwise as in the species.—P. fallax f. sparsilis Nyl. ex Leight. 
Lich. Fl. ed. 3, p. 232 (1879). 
A peculiar growth condition, also probably depending, as has been 
suggested, on the habitat. 
Hab. On moist shady rocks.—B. M. Near Lough Inagh, Conne- 
mara, Galway (the only British locality). 
Var. rugosa Nyl. in Bull. Soc. Linn. Norm. sér. 2, vi. p. 290 
(1872); Johns. exs. n. 155.—Thallus thick, coarsely warted ; 
otherwise as in the species. 
Ezsicc. Johns. n. 155. 
Perhaps more a growth form than a variety. The thallus is very 
thick and crowdedly warted; the apothecia are numerous. Inter- 
mediate states are not wanting. 
Hab. On old trees and rails.— 2. M. Cumberland (the only British 
record). 
29. P. inquinata Th. Fr. in Bot. Not. 1867, p. 108.—Thallus 
rather thin, continuous or cracked-areolate, sometimes warted- 
granulate, dark, or pale-grey (K—, CaCl—). Apothecia one or 
several in more or less prominent warts, the discs rather open, 
irregular, rounded or angular, with thin persistent paler margins 
surrounding one or several confluent discs ; epithecium brownish 
(K + dull purple or violet) ; spores 8 in the ascus, with thickish 
