PHYSCIA, ] PHYSCIET. 299 
clothed with small, prominent, crowded granules. Apothecia con- 
cave, the margin thickish, inflexed and crenate. . 
A rather peculiar form referable to this variety, with which it agrees, 
except in the granulose thallus and the concave apothecia. It isallied to 
var. subyranulosa, Nyl. (Flora, 1876, p. 281), but is ‘larger and more 
pranulose. The granules are usually so numerous as almost to obliterate 
the lobes, unless at the circumference, and upon them are frequently 
seen the young apothecia and the ‘spermogones. It was apparently a 
spermogoniiferous state of this that Weddell (Bull. Soc. Bot. 1869, p. 193) 
describes as subvar. tumida (cfr. Leight. Lich. Fl. iii. p. 133). In the 
Reena seen the apothecia are constantly concave, and do not become 
plane. 
Hab. On trunks of trees and rocks.in maritime, lowland, and upland 
districts.—.Distr. Local and rare in 8., Central, and N. England.—bB. M. ; 
Near Ryde, Isle of Wight; St. Minver, Cornwall; Great Comberton, 
Worcestershire ; Weardale, Durham. 
Var. y. ectanea Nyl. Act. Soc. Linn. Bord. sér. 3, i, (1856) 
p- 306.—Thallus imbricato-laciniate, deep tawny-yellow or orange- 
red; lacinize narrow, multifid, plane or convex, impresso-unequal. 
Apothecia small or moderate, the margin entire or subentire.—Mudd, 
Man. p. 118; Leight. Lich, Fl. p. 143, ed. 3, p. 182.—Parmelia 
parietina, B. ectanea Ach. Lich. Univ. (1810) p. 464 pro parte. 
Physcia parietina var. aureola Cromb. Lich. Brit. p. 38.—Lichen 
fulvus Dicks. Crypt. fasc. iii. p. 16, is perhaps referable to this 
variety.— Brit. Eas.: Larb. Cuesar. n. 1. 
Distinguished by the thallus being less determinate, intenser in colour, 
and by the narrow and more divided laciniw. States of it sometimes 
oceur which at first sight closely resemble Lecanora elegans. In speci- 
mens which are less closely appressed to the substratum, the under sur- 
face of the thallus, at least towards the circumference, is occasionally 
subconcolorous with the upper. The apothecia, which are usually nume- 
rous, have the margin generally entire, though sometimes slightly 
crenulate. 
Hab. On dry rocks in maritime, rarely in mountainous districts.— 
Distr. Local, though plentiful where it occurs, in the Channel Islands, 
8 W. and N. England, 8. and N. Wales, in I. Scotland, and 8.W. Ive- 
Jand.—B. M.: Islands of Jersey, Sark, and Guernsey. Bolt Head, 
Devonshire; Penzance, Cornwall; Tenby, Pembrokeshire; Barmouth, 
Merionethshire ; Isle of Man; Fern Islands, Northumberland ; St. Bees, 
Cumberland. Cramond, near Edinburgh; Portlethen, Kincardineshire ; 
Peterhead and on the Khoil, near Ballater, Aberdeenshire. Near Black- 
water Bridge, co. Kerry. 
4. P. polycarpa Nyl. ex Lamy, Bull. Soc. Bot. t. xxx. (1883) 
p- 859—Thallus effuse, subpulvinate, greenish-yellow ; lobes short, 
granulato-conglomerate and granulato-crenate at the margins 
(K+purple). Apothecia small or nearly moderate, numerous, 
crowded, the margin turgid, entire; spores 0,011-15 mm. long, 
0,006-8 mm. thick.—Cromb. Grevillea, XV. Dp. 78.—P. parretina 
E. polycarpa Mudd, Man. p. 118; Cromb. Lich. Brit. p. 38; Leight. 
