169. L. aniptiza Stirton in Trans. Glasgow Soo. Nat. 1875,
p. 89.—Thallus blackish-grey or green, granular, thin. Apothecia
black, small, prominent, convex, immarginate, papillose (as it were
glomerate), entirely blackish-grey within ; paraphyses irregular,
indistinct, slender and branching; spores oblong-cylindrical,
0,007-11 mm. long, 0,0025-30 mm. th ick ; hymenial gelatine
bright-blue with iodine.—Leight. Lich. M. ed. 3, p. 277. Specimen
not seen.
Hdb. On decorticated wood. Collected by Dr. Stirton near Killiecrankie,
Perthshire.
170. L. furvella Nyl. in Mudd Man. p. 207 (1861).—Thallus
effuse, thickish, granulose-furfuraceous, areolate-diffract, dark-
olive-brown or blackish, opaque (K —, C a C l - ) ; hypothallns
blackish. Apothecia small, appressed, plane, wrinkled, margined,
black, the margin thin, flexuose, persistent ; paraphyses coherent,
bluish-black a t the apices ; hypothecium dark-brown ; spores
ellipsoid, 0,012-17 mm. long, 0,006-8 mm. th ic k ; hymenial gelatine
bluish then wine-red with iodine.—Cromb. Lich. Brit. p. 84 ;
Leight. Lich. FI. p. 272 ; ed. 3, p. 272.
A well-marked species, having much the appearance of Pannularia
nigra. The soft somewhat isidioid thallus is loosely adherent to the
substratum. The more or less scattered apothecia are usually as if
plicate, though here and there quite regular.
Hab. On schistose rocks and walls in mountainous regions.—
Distr.—Local, though not unfrequent where it occurs, among the
Grampians, Scotland.—B. M. Ben Lawers, Craig Tulloch, Glen
Fender and Ben Vrackie, Perthshire; Morrone and Glen Callater,
Braemar, Aberdeenshire.
171. L. asperella Stirton in Trans. Glasgow Soc. Nat. 1875,
p. 87.—Thallus black, thickish, granular-furfuraceous cracked-
areolate, determinate. Apothecia black, small, adnate, plane,
margin thin, shining ; hymenium in a th in section bluish-green ;
hypothecium colourless, subtended by a brownish-black excipulum;
paraphyses not very distinct, the apices clavate, bluish ; spores
oblong-ellipsoid, 0,007-10 mm. long, 0,004-5 mm. thick ; hymenial
gelatine intensely and persistently blue with iodine.—Leight.
Lich. FL ed. 3, p. 286. Specimen not seen.
Hdb. On rocks. Collected by Dr. Stirton a t Ben-y-gloe, Perthshire,
and regarded by him as very closely allied to L. furvella.
172. L. insularis Nyl. in Bot. Not. 1852, p. 177.—Thallus
determinate, verrucose-unequal, areolate-diffract, moderately
thick ; the areolæ verrucose-plicate, somewhat shining, brownish-
grey or tawny-brown (K + yellow, C aC l- ) ; hypotballus blackish.
Apothecia small, appressed, plane, black, margined, the margin
thin, prominent, flexuose; paraphyses concrete, dark-brown a t
the apices ; hypothecium brownish-black ; spores ellipsoid,
0,010—12 mm. long, 0,005—6 mm. thick ; hymenial gelatine bluish
then sordid-violet with iodine.—L. intumescens Nyl. in Act. Soc.
Linn. Bord. ser. 3, i. p. 373 (18 5 6 ); Mudd Man. p. 205, t. 3,
f. 76 ; Cromb. Lich. B rit. p. 8 5 ; Leight. Lich. FI. p. 2 5 4 ; ed. 3,
p. 246. L. hadia var. [3 intumescens Flot. Lioh. Siles. n. 175
(isso).
Exsicc. Leight. n. 161 ; Mudd n. 174.
Distinguished by the manner and place of growth. With us it
always forms small, orbicular, insulated patches on the thallus of
Lecanora glaucoma, usually limited by the hypotballus. As noted by
Mudd, though not strictly a parasite, it a t length destroys the thallus
of the plant upon which it germinates. In the specimens seen the
apothecia are numerous and crowded.
Hab. On rooks in maritime and upland hilly districts.—Distr.
Only here and there sparingly in Great Britain ; not seen from Ireland
or the Channel Islands.—A. M. Malvern Hills, Worcestershire;
Gimlet Book, Pwllheli, and Snowdon, Carnarvonshire; Caer Caradoc,
Shropshire; Lounsdale and Cliffrigg, Cleveland, Yorkshire; near P o rtlethen,
Kincardineshire.
173. L. confusula Nyl. in F lo ra Iv. p. 360 (1872).—Thallus
indeterminate, th in n ish , gi’a n u la te or granulate-conglomerate, th e
glomerules th in , sc a ttered, olive-grey or greyish-brown (K —,
CaCl — ). Apothecia small, ad nate, convex, immarginate, black,
whitish w ith in ; hypothecium colourless; paraphyses concrete ;
epithecium yellowish-brown (K —) ; spores ellipsoid, 0,007-
0,011 mm. long, 0,004-5 mm. th ic k ; hymenial gelatine deep-
blue th en wine-red with iodine.—Cromb. in Grevillea 1. p. 6 1 ;
Leight. Lich. FI. ed. 3, p. 266.
Hdb. On micaceous rocks or on walls.—A. M. Craig Tulloch,
Blair Athole, Perthshire (the only locality).
174. L. nigrificans Nyl. in F lo ra lix. p. 307 (1876).—Thallus
effuse, thin, rugulose, areolate-rimose, opaque, blackish, in te rn a lly
green (K —). Apothecia small, subprominent, plane, slightly
margined, black, th e m arg in a t times bluish-grey, su ffu sed ;
hypothecium colourless ; paraphyses distinct, m o d e ra te ; epithe-
eium blackish-blue-green ; spores ellipsoid, 0,011-12 mm. long,
0,006-7 mm. t h i c k ; hymenial gelatine wine-red with iodine.—
Cromb. in Grevillea v. p. 27 ; Leight. Lich. FL ed. 3, p. 292.
Distinguished from the preceding by the colours of the thallus and
the occasionally suffused margins of the apothecia, which in the
specimen seen are subminute and numerous.
Hdb. On a schistose rook in a maritime district.—A. M. Killery
Bay, Connemara, Galway (the only locality).
175. L. leiotea Nyl. in F lo ra 1. p. 328 (1867).—Thallus
determinate, th in , continuous, smooth, obsoletely rimulose, shiny-
brown or greyish-black. Apothecia submoderate, adnate, plane,
margined, black, th e m arg in obtuse or in d is tin c t; hypothecium
colourless; pa raphyses moderate, th ic k e r an d brownish a t th e