440 LICHENACEI, [LECANORA. 
Looks at first sight a distinct species, but is evidently referable to 
subsp. intricata. It is, however, a very well-marked variety characterized 
by the constantly lecanorine apothecia and the peculiar habitat. The 
hypothallus also is not distinctly visible. The apothecia are numerous 
and crowded. 
Hab. On tufts of mosses (Grimmias and Andreas) upon boulders in 
alpine places.—Distr. Only very sparingly on the summits of two of 
the Grampians, Scotland.—B. M.: Ben Lawers, Perthshire ; Ben-naboord, 
Braemar, Aberdeenshire. 
126. L. stenotropa Nyl. Flora, 1872, p. 251.—Thallus subeffuse, 
thin, yellowish-green; otherwise as in the preceding species. 
Apothecia small, convex, immarginate, pale-yellowish ; paraphyses 
thickish ; spores ellipsoid, 0,010-12 mm. long, 0,003-4 mm. thick ; 
hymenial gelatine bluish, then sordidly wine-coloured with iodine. 
Cromb. Grevillea, xviii. p. 69. 
The thallus is little visible in the single authentic British specimen 
(determined by Nylander) which, however, is well fertile. It differs 
from L. poiytropa, of which it may be but a subspecies, only in the 
thicker paraphyses and thinner spores. 
Hab. On schistose stones of a wall in an upland district (associated 
with Lecidea leucophea Ficerke).— Distr. Only very sparingly on one of 
the Central Grampians, Scotland.—B. M.: Craig Tulloch, Blair Athole, 
Perthshire. 
127. L. subintricata Nyl. Flora, 1872, p. 249.—Thallus effuse, 
very thin, granulose, ochroleucous or sordid-greyish, often obsolete 
(Kf+ yellowish, CaCl—). Apothecia small, plane or slightly con- 
vex, biatoroid, variable in colour, yellowish, brown, olive, livid- 
brown or blackish, the margin thin, entire or excluded; spores 
ellipsoideo-oblong, 0,007-10 mm. long, 0,008-4 mm. thick ; para- 
physes slender; hymenial gelatine bluish with iodine.—Cromb. 
Journ. Bot. 1873, p. 183 (excl. form obscurtor); Leight. Lich. FI. 
ed. 3, p. 177 pro parte.—-Lecanora varia var. subintricata Ny). 
Flora, 1868, p. 478.— Brit. Ews.: Cromb. n. 162 pro parte. 
As observed by Nylandey, this is intermediate in appearance between 
L. symmicta var. sepineola and L. polytrepa subsp. intricata. It is, 
however, well distinguished from both by the smaller spores and the 
character of the spermatia. The thallus, elsewhere somewhat variable, 
is almost evanescent in the British specimens. Both apothecia and 
spermogones are numerous, the latter with spermatia thinly acicular, 
obsoletely or very slightly areuate, 0,006-7 mm. long, 0,0005 mm. thick. 
Hab. On old pales in an upland district—Distr. As yet found only 
among the Central Grampians, Scotland. B.M.: Glen Fender, Blair 
Athole, Perthshire. 
128. L. sarcopis Ach. Syn. (1814) p. 176; Nyl. Flora, 1869, 
p. 412..—Thallus subeffuse, thinnish or submoderate, granulose, 
yellowish-grey or sordid-yellow (K+yellow, CaCl~). Apothecia 
