292 CYCLOCARPINEE [LECANORA 
Close to the preceding species but differing in the thicker leprose 
thallus and in the pulverulent margins of the apothecia. It is 
frequently sterile, and in most of the specimens there is a yellow 
reaction with potash, sometimes turning to reddish-brown. As far as 
observed the spores are similar to those of L. varia, those of the latter 
species are, however, on the whole, larger and better developed. 
Hab. On old palings and bark of old trees.— Distr. Not uncommon 
throughout England ; rarely recorded from Scotland and not yet for 
Ireland, but probably overlooked.—B. M. Albourne, Sussex; Pens- 
hurst, Kent; Finchley, Middlesex; Reigate, Surrey; Epping Forest, 
Essex; Elstree, Herts; Stableford, Shropshire; Gopsall Park and 
Twycross, Leicestershire ; Hevingham, Norfolk; Buxton, Derbyshire ; 
Paddington near Manchester, Lancashire; Urpeth Valley, Durham ; 
Asby, Cumberland ; Corstorphine Hill, Edinburgh. 
Var. conizeoides A. L. Sm.—Thallus generally less pulveru- 
lent than in the species. Apothecia with the margins often 
crenulate and inflexed but scarcely pulverulent, otherwise as in 
the species.—Lecanora conizeoides Nyl. ex Cromb. in Journ. 
Bot. xxiii. p. 195 (1885) & Monogr. i. 431. 
Exsicc. Johns. n. 39. 
Akin to L. farinaria, though somewhat resembling L. varia in 
the less leprose thallus which is sometimes sparingly developed. 
The same yellow reaction with potash is present as in L. farinaria. - 
The spores are variable but attain the same size as in the species. 
Hab. On the bark of old trees (beeches and pines) in wooded 
upland districts.—Distr. Only in a few localities of S., Central and 
N. England.—B. M. New Forest, Hants; near Buxton, Derbyshire ; 
Egremont, Cumberland. 
38. L. sublivescens A. L. Sm.—Thallus effuse, thickish and 
granular-areolate or sometimes smooth as ifrubbed down, sordid 
yellowish-green (K + yellowish-brown). Apothecia moderate in 
size, generally rather crowded when present, the disc dull-brown 
becoming rather convex and turgid and darker in colour, the 
thalline margin soon obliterated ; paraphyses stoutish, uneven, 
irregularly septate, often branched, the epithecium of brown 
granules ; spores oblong-ellipsoid, 10-15 p long, 4-5 p thick ; 
hymenial gelatine blue with iodine.—L. varia var. symmicta f. 
livescens Nyl. ex Cromb. in Journ. Bot. vii. p. 50 (1869) & Lich. 
Brit. p. 52. L. orosthea var. sublivescens Nyl. in Flora lv. p. 248 
(1872) ; Cromb. Monogr. i. p. 429. 
More nearly allied to Lecanora farinaria var. conizxoides than to 
L. orosthea. It differs from the former chiefly in the apothecial 
characters. 
Hab. On bark of old trees (beech) in wooded districts.—Distr. 
Plentiful in a few localities in S. and E. England.—B. M. Near 
Lyndhurst, New Forest, Hants; Highbeech, Epping Forest, Essex ; 
Windsor Great Park, Hants. 
