112 
NEW BRITISH LICHENS. 
tlicciiim colourless ; hymeneal gelatine bluish, and then somewhat 
yellowish (the thecie violet-tawny coloured) with iodine ; sper- 
matia arcuate, 0,018-22 mm. long, 0,0005 mm. thick. 
On schistose rocks by a rivulet, near Kylemore (Larbalestier). 
Though apparently belonging to the section of L. Iceingata, it 
differs in the form of the spermatia. 
6. liecidea indigula. Ni/l . — Thallus scarcely any visible; apo- 
thecia blackish, somewhat prominent, plane, margined, internally 
concolorous ; spores 8 nae, colourless, ellipsoid, simple, 0,013- 
16 mm., 0,006-7 mm.; paraphyses slender; epitheciurn colourless ; 
hypothecium reddish, the upper subhymeneal portion thick, 
blackish ; hymeneal gelatine at first pale bluish and then wine-red 
with iodine. 
On schistose stones of a wall, near Kylemore (Larbalestier). 
Belongs to the section of L. sanguineoatra. 
7. Lecidea albovirella. NyL— Allied to L. chlorotropa, Nyl. 
(v/cZ. “ Flora,” 1877, p. 567), but with the apothecia white-flesh 
coloured, immarginate, when moist hyaline; thallus bright 
green, thin, subleprose, continuous ; hymeneal gelatine, bluish, 
and the thecse violet -red with iodine. 
On shady schistose rocks, ’Kylemore (Larbalestier). 
8. Lecidea chlorotopoides. l^yl. — Similar to L, albovirella, but 
with the apothecia reddish-testaceous, the margin usually dark 
(perithecium in thin section, violet, as also sometimes the hypo- 
thecium) ; spores bacillar, simple, or 1-3 septate, 0,014-20 mm. 
long, 0,002-3 mm. thick ; hymeneal gelatine bluish, then wine- 
coloured or wine-red with iodine. 
On moist calcareous rocks, near Kylemore (Larbalestier). 
9. Lecidea herbidula. Ayl. — Thallus yellow-greenish, opaque, 
subleprose, thin, rimulose or rimuloso-diffract ; apothecia dark 
red-testaceous or testaceo-reddish, somewhat convex, small, inter- 
nally pale; spores 8 me, colourless, fusiform, 1-3 septate, 0,011- 
18 mm. long, 0,0025 mm. thick; paraphyses not very well dis- 
crete ; epitheciurn and hypothecium colourless ; hymeneal gelatine 
bluish. 
On schistose rocks, Kylemore (Larbalestier). 
The thallus is entirely peculiar, and if proper would be referable 
to a proper genus, for it constitutes Gongrosira, Ktz. 
10. Lecidea chloxoticula. Thallus greenish, very thin, 
subleprose; apothecia whitish-flesh coloured, plane, very minute, 
the margin wdiitish ; spores 8 nre, acicular, thin, 0,020-35 mm. 
long, 0,001 mm. thick, substraight; paraphyses not very well dis- 
crete ; hypothecium colourless ; hymeneal gelatine wine-red with 
iodine; spermatia arcuate, 0,030-40 mm. long, 0,0008 mm. thick. 
On schistose rocks of a stream, near Kylemore (Larbalestier). 
11. Lecidea subimbricata. Hyl. — Thallus dark greyish, squam- 
ulose, squamules firm, subimbricated, subcrenate, concrescent ; apo- 
thecia black, plane, margined, moderate, internally concolorous ; 
