438 LICHENACEL, [LECANORA, 
condition of this with small apothecia is var. «. idlusoria Ach. Lich. 
Univ. p. 880, Cromb. Lich. Brit. Z. ¢. (non Leight. Lich. Fl. @2,¢.). The 
apothecia are variable in size, usually very numerous so as almost to 
obliterate the thallus, and at times in old plants several are conglomerate. 
The spermcgones, which are also frequent, are punctiform, immersed, 
dark-brown or blackish. 
Hab. On rocks, boulders, and walls in maritime and mountainous dis- 
tricts.— Distr. General in Great Britain and Ireland, plentiful among the 
Grampians, Scotland; rare in the Channel Islands.—B. M.: La Moye, 
Island of Jersey. Bolt Head, 8. Devon; near Penzance, Cornwall; 
Aberdovey, Merionethshire; Nesscliffe Hill, Shropshire; Cliffrig, Cleve- 
land, Yorkshire; Eglestone, Durham; Keswick, Cumberland. Appin, 
Argyleshire, Ben Lawers and Oraig Tulloch, Perthshire; Portlethen, 
Kincardineshire; Ben-naboord,. Braemar, Aberdeenshire; Ben Nevis, 
Inverness-shire. Kinsale, co. Cork; Derryquin, near Dunkerron, co. 
Kerry ; Doughruagh mts. ; Connemara, co. Galway. 
‘Form 1. efflorescens Cromb. Grevillea, xviii. (1890) p. 69.— 
Thallus sprinkled here and there with pale-yellowish soredia. 
Apothecia small, plane or somewhat convex, usually immarginate. 
Apparently a rare condition not previously observed, but resulting no 
doubt from the habitat. The soredia are yellowish with K. It is very 
different from Z, epanora. 
Hab. On shaded stones of a schistose wall in an upland district.— 
Distr. Only very sparingly on one of the Central Grampians, Scotland. 
—B. M.: Craig Tulloch, Blair Athole, Perthshire. 
Form 2. alpigena Schaer, Enum. (1850) p. 81. Thallus rimoso- 
areolate, pale yellow. Apothecia large, appressed, plane or convex, 
concolorous, the thalline margin paler, flexuose.—Leight. Lich. Fl. 
p. 197, ed. 8, p. 181.—Lecanora varia var. 1. alpigena, Ach. Lich. 
Univ. (1810) p. 381 (excl. vars.). 
Evidently confluent with the type, differing chiefly in the larger paler 
apothecia, These at length become convex, more or less aggregate, with 
the thalline margin excluded. 
Hab. On schistose rocks in alpine places.—Distr. Very rare on one 
of the S. Grampians, Scotland.—B. M.: Ben Lawers, Perthshire. 
Form 3. subglobosa Cromb.—Thallus effuse, thin, granulate, 
greenish-yellow, often nearly obsolete. Apothecia small, numerous, 
convex or subglobose, greenish-yellow or sub-brownish, immar- 
ginate.—Lecanora polyptropa var. 6. conglobata (non Flot.) Mudd, 
Man. p. 152, form conglobata (non Somm.) Leight. Lich. Fl. p. 197, 
ed. 3, p. 180. Lecanora varia var. polytropa form conglobata (non 
Somm.) Cromb. Lich. Brit. p. 52.—Brit. Ews.: Leight. n. 152; 
Mudd, n. 120. 
In this form, as observed by Leighton J. ¢., the crowded apothecia are 
yet distinct, though at times scattered and confluent. The thallus is 
sometimes scarcely visible, when, except in the shape of the apothecia, it 
differs little from the so-called var, wlusoria Ach. As the young apothecia, 
