316 CYCLOCARPINE [LECANORA 
Larbalestier and labelled L. cerinea gives the same chemical reaction, 
but the spores are much smaller. The citations from Linnzus and 
Hudson are extremely doubtful. Aspicilia cinerea var. ocellata 
Mudd I. ec. is probably identical with Buellia verruculosa (Monogy. ii. 
p- 172). Spermogones are frequent with spermatia, 16-21 p» long, 
and 1 » thick. 
According to Hue (Nouv. Arch. Mus. Paris sér. 5, ii. p. 35 (1910) } 
the black hypothallus so frequently present belongs to some neigh- 
bouring species. 
Hab. On rocks and walls in maritime and mountainous districts.— 
Distr. Rather local but widely distributed throughout the British 
Isles.—B. M. Moulin Huet Bay and Vale Castle, Guernsey; La 
Coupe, Jersey; Bray Hill, St. Minver and Lizard, Cornwall ; Lazonby, 
Cumberland; Cader Idris and Barmouth, Merioneth; Snowdon, 
Carnarvonshire, Teesdale, Durham; near Edinburgh; Barcaldine, 
Argyll; Ben Lawers and Glen Lochay, Killin, Perthshire ; Portlethen, 
Kincardineshire ; Wicklow; Lambay Island, Dublin. 
Form lepidota Leight. Lich. Fl. ed. 3, p. 173 (1879).— 
Thallus brownish-grey, areolate, the areole convex and wrinkled. 
Apothecia small, the thalline margins prominent, persistent.— 
Lecanora cinerea var. lepidota Leight. in Grevillea iii. p, 116 
(1875); Cromb. Monogr i. p. 467. 
Differs in the form of the thallus which is more squamulose and 
darker. 
Hab. On maritime rocks and by lakes in mountainous districts.— 
Distr. Reported only from the Channel Islands and N. Wales.— 
B. M. Beaufort, Jersey; Llyn Dinas near Beddgelert, Carnarvonshire. 
Subsp. epiglypta Nyl. in Flora lxiv. p. 4 (1881).—Thallus 
similar to that of the species. Apothecia becoming rather large 
and prominent, the disc corrugate with prominent lines.— 
Cromb. in Grevillea xix. p. 57 (1891) & Monogr. i. p. 467. 
Characterized by the peculiar apothecia whith have a somewhat 
gyrose appearance. Hue has given it specific distinction (Nouv. Arch. 
Mus. Paris sér. 5, ii. p. 7 (1910)). He found cephalodia within the 
thallus and under the hymenium associated with Glwocapsa alge. 
Hab. On schistose rocks in mountainous districts.—Distr. Rare 
in N. Wales and W. Scotland.—B. M. Cader Idris, Merioneth ; 
Barcaldine, Argyll. 
Var. olivascens A. L. Sm. Thallus thinner than in the 
species, smooth and somewhat shining, cracked-areolate. Apothecia 
small, immersed or rather prominent, the paraphyses dark blue- 
green at the tips, otherwise as in the species. 
Differing from the species in the thinner more shining thallus 
and in the blue-green tips of the paraphyses. The contents of the 
spores in some cases are broken up and look like two large globules. 
The differences may be due to habitat. 
Hab, On siliceous rocks in a maritime locality.—B.M. Moidart, 
Invernessshire (the only record), collected by Symers M. Maevicar, 
Jan. 1914, 
