PARMELIELLA | PANNARIACEX 83 
W. Scotland and S.W. Ireland.—B. M. Loch Creran, Barcaldine, 
Argyll; Western Blasquet Island and Blackwater Bridge, Kerry; 
Killree, Clare. 
3. P. lepidiota Dalla Torre & Sarnth. Die Flechten Tirol &e. 
p- 97 (1902).—Thallus of small squamules, firm, crenulate and 
often with ascending margins, imbricate-crowded, especially 
towards the centre, rather dingy brown or tawny-whitish. 
Apothecia moderate in size, plane or convex, dark-red or brown, 
internally pale-whitish ; spores ellipsoid, simple, 15-23 yp long, 
8-12 p» thick; hymenial gelatine bluish then wine-red with 
iodine. —Lichenoides granosum subglaucum, tuberculis planis nigri- 
cantibus Dill. Hist. Muse. p. 544, t. 82, fig. 2 (1741). Lecidea 
carnosa var, lepidiota Sommerf. Supp. Fl. Lapp. p. 174 (1826). . 
Pannularia lepidiota Stiz. Lich. Helv. p. 82 (1882); Cromb. in 
Grevillea xviii. p. 43 (1889) & Monogr. i. p. 340. 
The crimped and crenate margins of the squamules give the plant 
oiten a granular appearance. 
Hab. Spreading over decayed mosses on the ground in alpine 
situations.—B. M. Above Loch-na-gat, Ben Lawers, Perthshire. 
4, P. plumbea Wain. Lich. Brés. i. p. 206 (1890).—Thallus 
highly developed, orbicular, coriaceous or membranaceous, sub- 
monophyllous, adnate, the surface marked with radiating lines 
and concentric shell-like conformations, occasionally with bluish- 
green isidiose granules, and often crowdedly tuberculose or 
isidiose, the outer margin broadly crenate, dull-greyish or leaden- 
coloured, with a thickish rhizinose leaden-bluish hypothallus. 
Apothecia small, plane or convex, reddish- or dark-brown, the 
proper margins thin, entire, paler, often obliterated, pale within ; 
paraphyses septate, brown at the slightly swollen tips; spores 
ellipsoid, simple, colourless, 16-30 long, 7-11 » thick ; hymenial 
gelatine bluish with iodine.—Lichenoides tenue et molle, Agarici 
facie Dill. Hist. Muse. p. 179, t. 24, fig. 73 (1741). Lichen plumbeus 
Lightf. Fl. Scot. ii. p. 826, t. 26 (lower fig.) (1877) ; With. Arr. 
ed. 3, iv. p. 60; Engl. Bot. t. 353. L. cawrulescens Huds. FI. 
Angl. ed. 2, p. 531 (1778). Parmelia plumbea Ach. Meth. Lich. 
p. 212 (1803) ; S. F. Gray Nat. Arr. i.p. 440; Hook. FI. Scot. ii. 
p- 53; Tayl. in Mackay FI. Hib. ii. p. 142 pro parte. Pannaria 
plumbea Del. ex Duby Bot. Gall. p. 606 (1830) (incl. var. 
myriocarpa) ; Mudd Man. p. 121 (inel. var. myriocarpa) ; Leight. 
Lich, Fl. p. 170; ed. 3, p. 154 (inel. £. myriocarpa). Placodium 
plumbeum Hook. in Sm. Engl. Fl. v. p. 197 (1833). Coccocarpia 
plumbea Nyl. in Mém. Soe. Sci. Nat. Cherb. v. p. 109 (1857) ; 
Cromb. Lich. Brit. p. 43 & Monogr. i. p. 346 (incl. var. myriocarpa) ; 
var. myriocarpa Nyl. Lich. Scand. p. 128 (1861). 
Exsice. Croall n. 96 ; Cromb. nos. 56, 57 ; Dicks. Hort. Sice. 
fase. x. n. 24; Johns. nos. 96, 321 ; Larb. Cesar. n. 72 & Lich. 
Hb. n. 253; Leight. n. 233. 
q@ 2 
