296 LICHENACEI. [PHYSCIA. 
coloured thallus, which is generally more or less sprinkled with yellowish- 
white soredia. Sometimes it is paler towards the base and on the under 
surface ; when growing in moist shady places it is somewhat greenish. It 
varies considerably in size, occasionally spreading rather extensively, but 
frequently stunted in small densely cxspitose tufts. The apothecia are 
extremely rare in Great Britain, and when they occur are few and small. 
The spermogones, which are more frequent, are scattered, usually some- 
what prominent, with spermatia asin P. parietina, but rather thinner and 
pistillar. 
Hab. On the trunks and branches of trees and shrubs, sometimes on 
rocks and walls, chiefly in maritime districts Distr. Usually plentiful 
where it occurs, in 8. and W. England, N. Wales, in 8. Ireland, and 
formerly in S.W. Scotland (Ailsa Craig).—B.M.: Islands of Sark, Alder- 
ney, and Guernsey. Lydd, Kent; St. Leonard’s Forest, Fairlight Glen 
near Hastings, and Lewes, Sussex ; Brockenhurst, New Forest, Hants ; 
near Ventnor, Ryde, Appuldurcombe, and Shanklin, Isle of Wight ; near 
Totnes, Lydford, Widdecombe, South Brent, and Torquay, Devonshire ; 
Bocconoc, Penzance (frt.), Withiel, and Bude, Cornwall; Malvern Hills, 
Worcestershire; Aberdovey and Barmouth, Merionethshire ; Holyhead, 
Island of Anglesea. Lambay Island, co. Dublin; Whiting Bay, co. 
pee ; near Cork, Castlebernard Park, Bandon, and Cape Clear, co. 
york, 
2. P. chrysophthalma DC. FI. Fr. ii. (1805) p. 401.—Thallus 
cespitoso-fruticulose, rigid, lacero-laciniate, yellow or yellowish- 
white; beneath whitish, lacinie narrow, ascending, divaricato- 
multifid, plane or concave, the apices fibrilloso-ramulose or spinose 
cts, Caci—). Apothecia subterminal, moderate or large, 
concave or somewhat plane, orange-coloured, the margin fibrilloso- 
ciliate ; spores 0,011-17 mm. long, 0,006-10 mm. thick.—Cromb. 
Lich. Brit. p. 37; Leight. Lich. Fl. p. 141, ed. 3, p. 181.—Borrera 
chrysophthalma Gray, Nat. Arr. i. p. 435; Sm. Eng. FI. v. p. 233; 
Mudd, Man. p. 112, . ii. f. 84. Lichen chrysophthalmus Linn. 
Mant. ii. (1771) p. 311; Eng. Bot. t. 1088. Lichenoides pulmo- 
narius minimus subluteus, receptaculis florum coronatis, mali aurantit 
coloris (Mich.) Dill. Muse. 74, t. 13. f. 17.—Brit. Exs.: Leight. 
n. 394; Larb. Cesar. n. 22; Bohl. n. 122. 
Much smaller than the preceding, from which itis readily distinguished 
by the thallus and fructification. With us it occurs only in small scat- 
tered tufts, and is but little variable. It is generally well fruited, the 
apothecia being sometimes numerous and crowded. ‘The spermogones are 
scattered towards the extremities of the laciniz, with the spermatia a 
little more slender than in the following species. 
Hab. On the trunks and branches of trees in orchards, rarely on old 
pales, in maritime districts—Dzstr. Rather local and scarce, in the 
Channel Islands, S. England, and 8. Ireland; very doubtful in 8.W. 
Scotland.—B. M.: Rozel and St. Brelade’s, Island of Jersey; Islands of 
Sark and Guernsey. Near Brighton and Lewes, Sussex ; near Ryde, Isle 
of Wight; Ilsham Walk, near Torquay, 8. Devon. Carrigalim and Kil- 
britain, co. Cork ; Muckrone, co. Kerry. 
Form 1. Dickieana Nyl. Syn. i. (1860) p. 410.—Thallus small, 
