34. B. lutosa J a t ta Syll. Licli. Ita l. p. 381 (1900).—Thallus
dirty-ochraceous, tartareous, cracked-areolate, the areolæ plane,
sometimes minutely lobate (K —, CaCl — ). Apothecia black,
innate and immarginate, th en appressed, plane, with a th in
prominent margin ; hypothecium black ; paraphyses distinct,
thicker and blackish a t the tips ; spores oblong, rather small,
0,010-12 mm. long, 0,005-6 mm. thick.—Lecidea lutosa Mont.
ex Schær. Enum. p. 116 (1850); Mudd Man. p. 202 ; Cromb.
Lich. Brit. p. 7 8 ; Leight. Lich. PI. p. 311; ed. 3, p. 326.
Specimen not seen.
Hab. On rooks in upland regions.—EZsZr. Somewhat rare. Recorded
from Devon, Shropshire and Yorkshire.
35. B. contristans A. L. Sm.—Thallus effuse, thin, granulose,
brown or dark-brown (K —, CaCl — ). Apothecia small, convex,
immarginate, black, dark within ; paraphyses coherent ; epithecium
blackish; hypothecium sordid; spores ellipsoid or oblong, 0,010-14
mm. long, 0,003-4 mm. thick ; hymenial gelatine bluish then
sordid-yellow with iodine.—Lecidea contristans Nyl. in Flora
xlviii. p. 354 (1865) ; Leight. in Ann. Mag. Nat. Hist. ser. 3,
xvii. p. 62 (1866) & Lich. PI. p. 312; ed. 3, p. 329; Cromb.
Lich. Brit. p. 72. L. holomeloides Nyl. in Flora xlix. p. 369
(1866) ; Leight. in Ann. Mag. Nat. Hist. ser. 3, xix. p. 330
(1867) & Lich. FI. p. 323; ed. 3, p. 333 ; Cromb. Lich. Brit,
p. 70. L. anomaloides £. denigrans Nyl. ex Cromb. Lich. Brit,
p. 70 ; Leight. Lich. PI. p. 315; ed. 3, p. 330.
Exsicc. Cromb. n. 177.
The hypotheoium varies from almost colourless in a th in section
to sordid-brownish ; the epithecium is greenish-black or sordid-brown.
Hab. Overspreading decaying mosses on the ground or on rocks in
an alpine situation.—E. M. Plentiful near the summit of Ben Lawers,
Perthshire.
36. B. confusior A. L. Sm.—Thallus effuse, dark-grey, thin,
cracked-areolate, the areolæ small, almost plane. Apothecia
ra th e r small, black, plane and obscurely margined, becoming
convex or almost globose and immarginate ; hypothecium colourless
or yellowish ; paraphyses not well discrete, ra th e r stout,
slightly thicker and blackish a t the apices; spores ellipsoid or
oblong, simple, then 1-septate, 0,010-17 mm. long, 0,004—6 mm.
thick ; hymenial gelatine deep blue th en wine-red with iodine.—
Lecidea confusior Nyl. in Flora Ivii. p. 315 (1874); Cromb. in
Grevillea iii. p. 24 ; Leight. Lich. PI. ed. 3, p. 298.
Described by Nylander as having simple spores and as closely
allied to Lecidea confusula. Examination of the specimen in the
British Museum from the original locality shows th a t the spores are
septate when mature.
Hdb. On mica-schist rooks in a mountainous district.—B .M . Craig
Tulloch, Blair Athole, Perthshire (the only locality).
37. B. Obturbans A. L. Sm.—Thallus indeterminate, thin,
rugose, unequal, greyish (K + yellowish, C a C l - ) ; hypotballus
black, limiting the thallus. Apothecia small, a t first plane and
thinly margined, becoming convex and immarginate, blackish,
pale w ith in ; paraphyses not well d isc re te ; epithecium and
perithecium blackish; spores oblong, colourless, 0,010-11 mm
long, 0,0035 mm. th ic k ; hymenial gelatine bluish then wine-red
with iodine.— Lecidea obturbans Nyl. in Flora Ixix. p. 100 (1886) •
Martind. in Naturalist, 1886, p. 101. Specimen not seen.
„9“ ®®liistose rocks. Collected by J. M. Martindale near
Kendal, Westmoreland.
38. B. subviridis A. L. Sm.—Thallus effuse, thin, continuous,
granulate-rugulose, somewhat shining, greenish or dark-green
( K - , C aC l- ) . Apothecia sessile, minute, plane, thinly'’margined,
black, whitish w ith in ; paraphyses moderate; epithecium
brown; hypothecium colourless; spores oviform, 0,011-16 mm.
long,^ 0,005-7 _mm. thick ; hymenial gelatine bluish then tawny-
reddish with iodine.— Lecidea subviridis Nyl. in Flora Ivi. p. 297
(1873) ; Cromb. in Grevillea ii. p. 91 ; Leight. Lich. PI. ed. 3,
p. 331. ’
Well characterized by the Arthonia-Vike spores; it is allied to
Lecidea arthoniza, a Scandinavian species. In the two small specimens
seen, the apothecia are only sparingly present.
Hab. On siliceous stones in a maritime d is tric t.-E . M. Noirmont
Bay, Jersey (the only locality).
39. B. supernula A. L. Sm.—Thallus absent. Apothecia
small, plane, and thinly margined, a t length convex, immarginate,
black, concolorous w ith in ; paraphyses moderate or rather
thick, bluish-black a t the clavate apices; hypothecium bluish-
black, brick-red above; spores oblong-oviform, 0,009-14 mm.
long, 0,004-5 mm. th ic k ; hymenial gelatine wine-red with
iodine.— Lecidea supernula Nyl. in Flora lix. p. 574 (1876) •
Cromb. in Grevillea v. p. 107 ; Leight. Lich. FI. ed. 3, p. 389. ’
An athalline plant very similar in the form of the Arthonia-mie
spores to the preceding species. The apothecia are numerous and
usually several (3-6, rarely 8) aggregate.
^ Hab. Parasitic on the thallns of Lecanora calcarea var. Hoffmanni
locaht™^” *™^ tract.—E. M. Island of Lismore, Argyll (the only
40. B. episema A. L. Sm.—Thallus absent. Apothecia small,
black, aggregate or solitary, plane or rarely convex, marginate,
the margin obtuse, en tire ; hypothecium brown; paraphyses
distinct, blackish a t the tips of the clavate apices; spores ellipsoid
or elongate-oblong, typically 1-septate, rarely 1-3-septate, 0,010-
18 mm. long, 0,004-5 mm. th ic k ; hymenial gelatine bluish then
wme-red with iodine.— Lecidea episema Nyl. in Bot. Not. 1853,
K 2