collected at Bomere Pool, Shropshire, which perhaps belongs to the
species.
Hah. Incrusting mosses on the ground in an alpine situation.—
B. M. Summit of Ben Lawers, Perthshire.
Var. triphragmia Boist. Nouv. FL Lich. pt. 2, p. 234 (1902).
—Thallus and apothecia similar to the species ; spores 3-septate,
0,024-34 mm. long, 0,009-11 mm. thick.—Lecidea triphragmia
Nyl. in Act. Soc. Linn. Bord. sér. 3, i. p. 387 (1856) ; Cromb. in
Journ. Bot. ix. p. 179 (1871); Leight. Lich. FI. p. 329; ed. 3,
p. 349.
Similar to the species, but with 3-septate spores mixed with the
1-septate.
Hab. On shady rocks.—E. M. Morrone, Braemar, Aberdeenshire.
26. B. lyperiza A. L. Sm.—Thallus greyish or blackish-grey,
thin, smooth, continuous, obscurely limited (K — , CaCl — ).
Apothecia black, plane or slightly convex, ra th e r large, mai’gin
obtuse ; hypothecium dark-brownish, grumous ; paraphyses
distinct, slender, often septate, branched above; spores dark-
brown, ellipsoid, sometimes 3-4-nucleate, ra th e r large, 0,0lb -
22 mm. long, 0,009-12 mm. th ick ; hymenial gelatine intensely-
blue with iodine.—Lecidea lyperiza Stirton in Grevillea iii.
p. 35 (1874) ; Leight. Lich. Fi, ed. 3, p. 323 (1879) (sphalm.
hyperiza). Specimen not seen.
Hab. On smooth bark of trees. Collected by Dr. Stirton near
Killin, Perth.
27. B. coniops Th. F r. Lich. Arct. p. 231 (1860).—Thallus
determinate, warted-granulose, unequal, moderate, greyish-brown
or greyish-ferruginous, the granules small, crenate, a t length
conglomerate (K —, CaCl — ) ; hypotballus blackish, often limiting
the thallus. Apothecia subminute, plane, adnate-appressed,
lilack or brownish-black, margined, the margin prominent, thin,
entire ; hypothecium brownish ; paraphyses coherent, brown a t
the thickened apices ; spores ellipsoid, obtuse, slightly constricted
in the middle, blackish-brown, 0,012-17 mm. long, 0,008-9 mm.
thick ; hymenial gelatine deep-blue with iodine.—Lecidea coniops
Wahlenb. in Ach. Meth, Suppl. p. 8 (1803) ; Cromb. Lich. Brit,
p. 88 ; Leight. Lich. FL p. 306 ; ed. 3, p. 318.
Often confounded hy authors with Lecidea latypea. It at first
forms small circular patches on the substratum, limited by a
radiating hypotballus, which subsequently become confluent, with the
hypotballus evanescent. The British sjpeoimens gathered are well
fertile.
Hab. On schistose rooks in a maritime district.—E. M. Near
Cove, Kincardineshire.
28. B. atrata Mudd Man. p. 215 (1861).—Thallus greyish ot
usuahy greyish-black, rather thick, cracked-areolate, the areolæ
small, smooth, plane or convex (K + yellow then red) ; hypo-
thallus black. Apothecia black, innate or appressed, loecoming
superficial, plane or convex, the margin thin, entire, disappearing ;
hypothecium thick, dark-brown ; paraphyses somewhat lax, dark-
bluish-green or almost black a t the apices ; spores dark-brown,
ellipsoid, 0,011-17 mm. long, 0,006-10 mm. th ick ; hymenial
gelatine deep-blue with iodine.—B. coracina Koerb. Syst. Lich.
Germ. p. 224 (1855) ; Mudd Man. p. 214. Verrucaria coracina
Hoffm. Deutschl. FI. ii. p. 183 (1795)? Lichen atratus Sm. Eng.
Bot. t. 2335 (1811). Lecidea atrata Hook, in Sm. Eng. El.
p. 174 (1833) (non Ach. fide Th. Fr. Lich. Scand. p. 607).
L. coracina Nyl. in Act. Soc. Linn. Bord. sór. 3, i. p. 372
(1856) (non Ach. vel pro minore parte, fide Th. Er. Lich. Scand.
p. 607) ; Cromb. Lich. Brit. p. 86 ; Leight. Lich. El. p. 307 ;
ed. 3, p. 321.
Easily recognized by the very dark colour of the thallus and
apothecia. The specimens collected by Mudd and named by him
E. coracina are included under E. æthalea. They have a lighter-
coloured thallus and light-brown hypothecium.
Hdb. On rooks.—Distr. Somewhat rare in subalpine districts of
England, Scotland and Ireland.—E. M. Canlochan, Forfarshire ;
Morrone, Braemar, Aberdeenshire.
Var. brunnea A. L. Sm.—Thallus brownish or black, composed
of small areolæ contiguous or somewhat scattered on a
black, predominating, radiating hypotballus (K —, CaCl — ).
Apothecia black, convex, with a th in unequal margin, sometimes
several aggregate ; hypothecium thick, black ; paraphyses easily
separating from the hypothecium and brownish a t the base,
subdiscrete, clavate and dark-greenish-blue or almost black a t
the tip s ; spores rounded oblong, becoming dark-brown, 0,012-
15 mm. long, 0,008 mm. th ic k ; hymenial gelatine deep-blue with
iodine.
Outwardly resembling Lecidea atrobrunnea Schær., a continental
species. I t differs from the species in the lighter, more dispersed
thallus and in the absence of any thalline reaction.
Hdb. On a granitic boulder.—E. M. Summit of Craig Calliach,
Perthshire.
29. B. scabrosa Koerb. Syst. Lich. Germ. p. 227 (1855).—
Thallus determinate, appressed, thin, areolate or areolate-granu-
lar, citrine or yellow-greenish (K + yellow, CaCl — ) ; hyjoo-
thallus obsolete. Apothecia small, appressed, somewhat convex,
a t length immarginate, black, slightly scabrid, hypothecium
black ; paraphyses slender, conglutinate, dull-greenish in the
mass, the epithecium black; spores ellipsoid, brown, 0,012-18
mm. long, 0,006-8 mm. thick ; hymenial gelatine tawny-wine-red
with iodine.—Lecidea scabrosa Ach. Meth. p. 48 (1803); S. E.
Gray Nat. Arr. i. p. 466 pro parte ; Hook, in Sm. Engl. FI. v.
N 2