LECANORA. | LECANO-LECIDEUT. 439 
however, are plane and margined, it is, like the preceding form, confluent 
with the type. 
Hab, On rocks, boulders, and walls in upland and subalpine districts. 
—Distr, Local in N. Wales, W. and N. England, and among the Gram- 
thee Scotland.—B. M.: Dolgelly, Merionethshire; near Oswestry, 
shropshire; Guisboro’ and Ayton Moors, Cleveland, Yorkshire. Ben 
es and Craig Tulloch, Perthshire; Morrone, Braemar, Aberdeen- 
shire, 
Subsp. L. intricata Nyl. Flora, 1872, p. 251.—Thallus deter- 
minate, thinnish or submoderate, areolato-diffract, subeffigurate at 
the circumference, yellowish-white or greyish-yellow (K +yellowish, 
CaCl—); hypothallus black, often limiting the thallus. Apothecia 
small, adnate, plane or somewhat convex, lecanorine, or at length 
often sublecideine, variable in colour, sordid-pale-testaceous, brown- 
ish, olive or blackish ; spores ellipsoid or oblongo-ellipsoid, 0,010~— 
12 mm. long, 0,005-7 mm. thick.—Cromb. Grevillea, xviii. p. 69.— 
Lecanora intricata Tayl. in Mack. Fl. Hib. ii. p. 187; Leight. Lich. 
Fl. p. 198, ed. 3, p.181. L. polytropa e.intricata, Mudd, Man. p. 152; 
Cromb. Lich. Brit. p. 52. Lecidea intricata Sm. Eng. FI. v. p. 185. 
Lichen intricntus Schrad. Journ. Bot. (188i) p. 72.—Lichen poly- 
tropus Eng. Bot. t. 1264, two upper figs. Lecanora polytropa y. 
alpigena Mudd, Man. p. 152, is merely a state of this.—Brit. Evs.: 
Leight. n. 153; Mudd, n. 119. 
Well distinguished as a subspecies by the more distinct -hypothallus 
and the colour of the usually lecanorine apothecia, which, however, are 
at length often lecideino-biatorine and immarginate. A lignicolous con- 
dition, differing from the type merely in the thallus being more effuse and 
Ae ae less distinct, is rarely met with in the Highlands of 
cotland. 
Hab, On rocks, boulders and walls, rarely on old palings, in maritime 
and mountainous districts.—Distr. Somewhat local and much less com- 
mon than the type, in N. Wales, N. England, among the Scottish Gram- 
pians, and in W. Ireland.—B. M.: Barmouth and Dolgelly, Merioneth- 
shire; Llyn Geirionydd, Carnarvonshire; Bodbury Ring, near Church 
Stretton, Shropshire; Ingleby and Kildale, Yorkshire; Eglestone, 
Durham; Staveley, Westmoreland ; Swinhope, Northumberland. Crian- 
larich, Killin, Ben Lawers, Craig Tulloch, Perthshire; Portlethen, 
Kincardineshire ; Morrone, Braemar, Aberdeenshire; Ben Nevis, Inverness- 
shire. Dunkerron, co. Kerry. 
Var. 3. leptacina Nyl. ea Stiz. St. Gall. Nat. Ges. 1882, p. 351. 
—Thallus small, thin, granulato-squamulose, straw-coloured, the 
granules smooth, crenate (K+yellowish, CaCl—). Apothecia 
moderate, plane, olive or blackish, obsoletely yellowish-suffused, the 
thalline margin persistent, usually crenulate; spores 0,010-12 mm. 
long, 0,005-6 mm. thick.—Cromb. Grevillea, xviii. p. 69.—Lecanora 
varia subsp. leptacina Cromb. Journ. Bot. 1873, p. 184; Leight. 
Lich. Fl. ed. 3, p. 177. Lecanora leptacina Somm. Lapp. Suppl. 
(1826) p. 96. Lecanora varia form terrestris Cromb. Lich.. Brit. 
p. 52; Leight. Lich. Fl. p. 193. 
