434 LICHENACEI. [LECANORA. 
stantly biatorine apothecia and by the thalline reaction with CaCl. In 
the few British specimens seen the thallus is comparatively small and 
determinate; but the apothecia are numerous and occasionally 2-3- 
agoregate. The spermogones are only very sparingly present, with sper- 
matia 0,018-20 mm. long, 0,0005 mm. thick. 
Hab. On trunks of firs and on old pales in maritime and upland 
tracts.-—Distr. Seen only from a few localities in 8. England, N. Wales, 
the S.W. Highlands of Scotland and S.E. Ireland; no doubt to be 
detected elsewhere.-—B, M.: Lyndhurst, New Forest, Hants; Island of 
Anglesea. Appin, Argyleshire. Great Island, co. Cork. 
Var. 3. sepincola Nyl. Flora, 1872, p. 249.—Thallus effuse, 
granulose or granuloso-unequal, at times subevanescent. Apothecia 
biatorinc-lecideine, convex, sordid-reddish or blackish; spores 
occasionally thinly 1-septate, 0,010-17 mm. long, 0,004-5 mm. 
thick.—Leight. Lich. Fl. ed. 3, p. 183; Cromb. Grevillea, xviii. 
p. 69.—Lecanora varia var. scepincola Cromb. Lich. Brit. p. 52; 
Leight. Lich. Fl. ed. 1, p. 193.—Lecidea sepincola Ach. Syn. (1814) 
p- 35. 
Evidently referable to this species, of which it is a good variety, dif- 
fering in the colour of the apothecia and the rather longer, less simple 
spores. The thalline reaction with CaCl at once keeps it distinct from 
var. 8 of the following species, with which it might be confounded. 
Hab. On old pales in upland situations.—-Distr. Local in N. England 
and among the Grampians, Scotland.—B.M.: Hart, Durham; Lam- 
plugh, Cumberland. Killin, Perthshire; Crathie, Braemar, Aberdeen- 
shire, 
120. L. symmictera Nyl. Flora, 1872, p. 249.—Thallus effuse, 
subleprose or subgranulose, yellowish-straw-coloured (K+ yellow, 
CaCl—). Apothecia small, biatorine, convex, concolorous with the 
thallus, pale or dark-olivaceous, the margin excluded; spores 
oblong, 0,010-15 mm. long, 0,003-5 mm. thick ; hymenial gelatine 
bluish, then tawny with iodine.—Cromb. Journ. Bot. 1873, p. 133; 
Leight. Lich. Fl. ed. 3, p. 200.—Brit, Eas,: Mudd, n. 117; Larb. 
Lich. Hb. n. 130. 
Subsimilar to the preceding species, with which till recently it has 
been confounded, but differs at once in the reaction with CaCl. In 
Britain it is a much more common plant, with the thallus spreading 
extensively and the apothecia numerous. The spermogones are fre- 
quent with spermatia as in. symmicta. 
Hab. On old pales and the trunks of trees in maritime and upland 
districts. —Dizstr. General in Great Britain; rare in the Channel Islands : 
not seen from Ireland.—B.M.: Beauport, Island of Jersey. Henfield, 
Sussex; Lyndhurst, New Forest, Hants; near Bove Tracey, 8. Devon ; 
near Penzance, Cornwall; near Minety, Wiltshire ; anna Middlesex ; 
Gamlingay, Cambridgeshire ; Dolgelly, Merionethshire ; Island of Angle- 
sea; near Ayton, Cleveland, Yorkshire ; Levens, Westmoreland. New 
Galloway, Kirkcudbrightshire; Blairdrummond, near Stirling ; Finlarig, 
Killin, and Ben Lawers, Perthshire; Nigg, Kincardineshire ; Crathie, 
Braemar, Aberdeenshire, : f 
