Form congesta Cromb. MS.—Apothecia minute, convex,
crowded, botryose, immarginate ; otherwise as in the type.
A rather singular form, characterized by the aggregate apothecia,
though in the same plants these are occasionally normal, and scattered.
I t is referred to by Th. Fries Lioh. Scand. p. 436.
Hah. Incrusting mosses on rooks in mountainous districts.—B. M.
Craig Calliaoh, Perth sh ire ; Ben Bulben, Sligo.
Var. /3 Templeton! Wainio in Medd. Soc. Faun. & FI.
Fenn. x. p. 38 (1883).—Thallus as in the type. Apothecia sub-
moderate, black, slightly shining ; hypothecium thickish, brownish
or reddish-black; spores oblong or obtusely fusiformi-oblong,
simple or thinly 1-septate, 0,010—15 mm. long, 0,005—6 mm.
thick.—Lecidea Templetoni Tayl. in Mackay FI. Hib. ii. p. 123
(1836); Leight. Lich. FI. p. 312 ; ed. 3, p. 329. L . sahuletorum
var. Templetoni Cromb. Lich. Brit. p. 71 (1870). Bilimbia
Templetoni Mudd Man. p. 189 (1861).
Usually regarded by British authors as a distinct species. I t
differs chiefly in the colour of the rather larger apothecia and the
frequently uniseptate spores. The violet-coloured granules are present
in the epithecium as in the type.
Hab. Incrusting decayed mosses on rooks and boulders in upland
situations.—Distr. Seen from only a very few localities in N. Wales,
the S. Grampians, Scotland, and N. Ireland.—D. M. Cader Idris,
Merioneth; Ben Lawers, Perthshire ; Invermoriston, Invernessshire ;
near Belfast, Antrim ; Doughruagh Mt., Galway.
46. L. semipallens Nyl. in Flora lix. p. 234 (1876).—Thallus
effuse, thin, rimulose, sordid-whitish or whitish, glaucous (K +
yellowish, CaCl — ). Apothecia subminute, conv'ex, immarginate-
livid or partly pale, colourless w ith in ; epithecium and hypothecium
colourless; spores shortly ellipsoid, minute, 0,006-9 mm.
long, 0,0035—45 mm. th ic k ; hymenial gelatine tawny-wine-red
with iodine.—Cromb. in Grevillea v. p. 26 : Leight. Lich. FI.
ed. 3, p. 298.
Lxsicc. Larb. Lich. Hb. n. 68.
Readily distinguished from its allies by the minute spores. E x te rnally
it is a rather inconspicuous plant from the thallus being often
scarcely visible and the apothecia very small and more or less scattered.
One of the specimens seen is tinged with peroxide of iron.
Hab. On quartzose and schistose rocks in streams in a m ountainous
region.—Distr. Found only in W. Ireland.—B. M. Near Kylemore,
Lough Inagh, and Twelve Pins, Connemara, Galway.
47. L. valentior Nyl. in Flora Ix. p. 229 (1877).—Thallus
subefluse, thin, continuous, rimóse, greyish or somewhat greenish
(K —, CaCl — ). Apothecia small, subplane or convex, immarginate
or often obtusely submarginate, brown or dark-brown, the
margin when present p a le r; paraphyses colourless a t the apices;
hypothecium dark-brown; spores 0,012-17 mm. long, 0,006-8
mm. thick ; hymenial gelatine bluish then violet with iodine.—
Cromb. in Grevillea vi. p. 19 ; Leight. Lich. FI. ed. 3, p. 267.
Perhaps only a subspecies; differs chiefly in the constantly larger
spores; the substratum on which it grows is also different. The
single small specimen seen is well fertile.
Hab. On wet shady rooks in a mountainous region.—B. M. Lough
Inagh, Connemara, Galway (the only locality).
48. L. fuscorubens Nyl. ex Salw. in Trans. Fdin. Bot. SoC. vii.
p. 551 (1863).—Thallus effuse, very thin, smooth, subcontinuous,
sordid-greyish (K —, CaCl — ) ; usually obsolete. Apothecia small,
sessile, plane, marginate, then convex and immarginate, brownish-
black or black, within b rown; hypothecium thick, b rown;
epithecium pale-reddish; spores ellipsoid, 0,010-14 mm. long,
0,005-9 mm. th ic k ; hymenial gelatine bluish then wine-red with
iodine.—Cromb. Lich. Brit. p. 68 pro parte ; Leight. Lich. FI.
p. 300 pro p a rte ; ed. 3, p. 310. Biatora fuscorubens Nyl. in Bot.
Not. 1853, p. 183 pro parte.
A plant apparently little understood by authors. I t is perhaps
only a variety or subspecies of L. sanguineoatra (cf. Nyl. Lich. Env.
Paris, p. 79), differing chiefly in the frequent absence of a thallus and
in the nature of the habitat. The somewhat scattered apothecia are
darker in more exposed situations.
Hab. On calcareous rocks in mountainous districts.—Distr. E x tremely
local and scarce in the S. Grampians, Scotland, and in S.W.
Ireland.—B. M. Craig Tulloch, Blair Athole, Perth sh ire ; Doughruagh
Mt., Connemara, Galway.
49. L. albohyalina Nyl. in Flora lix. p. 577 (1876).—Thallus
effuse, very thin, leprose, sordid-whitish (K —, CaCl — ), often
obsolete. Apothecia minute, convex or subglobose, whitish or
whitish-flesh-coloured; hypothecium and paraphyses colourless;
spores oblong or fusiform-oblong, simple or often 1-septate, 0,008-
0,014 mm. long, 0,0025-30 mm. thick ; hymenial gelatine slightly
bluish then tawny-wine-red with iodine.—L. luteola var. albohyalina
Nyl. Herb. Mus. Fenn. p. 89 (1859). L. anomala var.
albohyalina Nyl. Lich. Scand. p. 203 (1861).
Nylander says th a t the pjant widely differs from L. meiocarpa,
with which it is confused by Th. Fries (Lich. Scand. p. 431). In
the very few British specimens seen, the thallus is inconspicuous,
and the apothecia, which are somewhat scattered, become darker
in age.
Hab. On smooth bark and decorticated trunks of trees in wooded
upland tracts of mountainous districts.—DZsir. Very local and scarce
in N. Wales and the S. Grampians, Scotland.—B. M. Dolgelly,
Merioneth; Craig Calliaoh, Perthshire.
50. L. immersa Ach. Meth. p. 34 (1803).—Thallus effuse,
very thin, leprose, white or greyish-white, often obsolete (K —,
CaCl — ), Apothecia submoderate, immersed in depressions or