320 CYCLOCARPINE [LECANORA 
Resembling Lecanora in the thalline margin, though frequently 
placed in Lecidea on account of the dark hypothecium. Warted 
seabrid pale-reddish cephalodia, containing Glwocapsa gonidia, are 
abundant on some of the specimens, but are absent from those 
growing in streams (f. r7vwlarts Cromb. Monogr. i. p. 470). 
Hab. On mica-schistose rocks in alpine places.—Distr. Rare on 
the Grampians, Scotland.—B. M. Loch-na-Gat, Ben Lawers, Perth- 
shire. 
c. Thallus grey, of prominent or isidia-like warts, K —. 
71. L. verrucosa Laurer ex Sturm Deutschl. Fl. Krypt. ii. 
28, p. 63, t. 21 (1835)—Thallus effuse, irregularly squamulose- 
warted, sometimes slightly pulverulent, greyish-blue-white 
(K — CaCl —). Apothecia immersed, then prominent on the 
warts, small, the disc black with a narrow black rim surrounded 
with a thickish thalline margin ; paraphyses coherent, slender, 
flexuose, submoniliform-septate and dark-brown above; asci 
large, with a thickish wall when mature, 8-spored ; spores large 
and thick-walled, broadly ellipsoid, variable in size, up to about 
62 pw long, and 30 » wide (often about 50 » x 30 p); hymenial 
gelatine blue then quickly wine-red with iodine-—Cromb. Lich. 
Brit. p. 58; in Grevillea i. p. 172 & Monogr. i. p. 475; Leight. 
Lich. Fl. p. 214; ed. 3, p. 200. Ureeolaria verrucosa Ach. Lich. 
Univ. p. 339 (1810).  Aspicilia verrucosa Koerb. Syst. Lich. 
Germ. p. 167 (1855) ; Mudd Man. p. 164. 
Exsicc. Cromb. n. 73. 
Well characterized by the large spores and by the habitat. 
Hab. Incrusting mosses on rocks (chiefly calcareous), rarely on 
the ground in upland and subalpine situations.—Distr. Rare in 
N. England and the Grampians, Scotland.—B. M. Cunswick Sear, 
Westmoreland; Loch-na-Gat, Ben Lawers _ Craig Tulloch, Blair 
Athole, Perthshire. 
72. L. poriniformis Nyl. in Flora xlviii. p. 353 (1865),— 
Thallus effuse, thinnish, membranacous and continuous or thicker 
and cracked, whitish-grey (K —). Apothecia small, embedded 
in the thallus, then emerging in rounded prominent verruce 
either singly or 3 to 4 in one verruca ; the dise rose-coloured or 
whitish, the thalline margin thick, not prominent ; paraphyses 
crowded, slender, septate and branched ; spores 6 to 8 in the 
ascus, ellipsoid or ovoid, large, with a thinnish wall, 50-80 y long, 
27-50 p thick ; hymenial gelatine blue then tawny-yellow with 
iodine.—Carroll in Journ. Bot. iv. p. 23 (1866) ; Cromb. Lich. 
Brit. p. 56; in Grevillea i. p. 172 & Monogr. i. p. 476; Leight. 
Lich. Fl. p. 190; ed. 3, p. 203. 
Exsicc. Cromb. n. 74; Johns. n. 274. 
An endemic species resembling a Pertwsaria when mature, but 
differing in the early stages, the warts developing along with and as 
part of the apothecia. These are scattered or crowded. 
