Cliffrigg, Cleveland, Yorkshire ; Ben Lawers, Perthshire ; Craig
Cluny, Braemar, Aberdeenshire ; Letterfrack, Connemara, Galway.
Var. alabastrites A. L. Sm.—Thallus effuse, thin, continuous,
minutely subgranulose, whitish or greenish-white. Apothecia
small, somewhat plane, whitish, colourless within, the margin
scarcely prominent, somewhat paler ; paraphyses not discrete ;
epithecium and hypothecium colourless ; spores fusiform, 3-5-
septate, 0,018-24 mm. long, 0,005-7 mm. th ick ; hymenial
gelatine bluish then, especially the asci, dark-wine-coloured with
iodine.—Lecidea alabastrites Nyl. in Flora Ixii. p. 207 (1879);
Cromb. in Grevillea viii. p. 29.
Exsicc. Larb. Lich. Hb. without number.
Eesembles the type in external appearance, differing only in the
somewhat more regula,r and larger spores, usually 3- or more-septate.
In the specimen examined from the original locality the apothecia are
somewhat yellow internally, but that is probably only a condition of
age or growth.
Hdb. On moss on trees.—B. M. Derryclare, Kylemore, Connemara,
Galway.
10. B. Nsegelii Anzi in Flora xliv. p. 653 (1861).—Thallus
effuse, thin, unequal, granulose or rimulose, greyish or whitish
(F —, CaCl — ). Apothecia minute, adnate or sessile, subconcave
or plane and thinly margined, then convex and immarginate,
leaden-brownish or flesh-coloured ; hypothecium colourless ; para-
phj'ses coherent, leaden-brownish or dark a t the apices ; spores 6—8
in the ascus, oblong, straight or slightly curved, simple or usually
3-septate, 0,014-25 mm. long, 0,001-6 mm. th ic k ; hymenial
gelatine bluish then sordid-tawny-wine-coloured with iodine.—
Biatora Nægelii Hepp Flecht. Fur. n. 19 (1853). Lecidea
Nsegelii Stiz. in Nov. Act. Acad. Leop.-Carol, xxxiv. Abh. 2,
p. 19 (1867); Cromb. in Journ. Bot. xiv. p. 361 (1876); Leight.
Lich. FI. ed. 3, p. 345. L. sphæroides f. vacillans Nyl. Lich.
Scand. p. 204 (1861) pro parte ; Leight. Lich. FI. p. 336.
Exsicc. Larb. Lich. Hb. n. 175.
When moistened the apothecia show a pale transparent disc,
surrounded by a darker ring.
Hab. On the bark of trees.—DisZr. Eare in S. England and W.
Ireland.—E. M. Near Erriff, Connemara, Galway.
11. B. metamorphea Oliv. Exp. Syst. Lich. France ii. fasc. 1,
p. 40 (1900).—Thallus effuse, thin, leprose, greenish or greyish-
green. Apothecia small or submoderate, innate, somewhat plane,
a t times difform or 2-confluent, the margin obliterated, whitish
or pale-flesh-coloured, concolorous within ; asci oblong, crowded ;
paraphyses none ; spores oblong or oblong-fusiform simple or
3-septate, 0,019-32 mm. long, 0,006-8 mm. th ic k ; hymenial
gelatine scarcely tinged, the asci bluish then wine-reddish, with
iodine.—Lecidea metamorphea Nyl. in Act. Soc. Linn. Bord.
ser. 3, i. p. 359 (1856); Cromb. in Grevillea i. p. 172; Leight.
Lich. Fi. ed. 3, p. 355.
Hdb. On mosses on stones, in a mountainous district.—E. M.
Glen Fender, Blair Athole, Perthshire (the only locality).
12. B. hyalinescens Boist. Nouv. FI. Lich. pt. 2, p. 188
(1902).—Thallus effuse, very thin, subfurfuraceous, greyish-white,
a t times scarcely distinct. Apothecia appressed, moderate or
somewhat large, crowded, concave, pale-sordid-rose or clear-horn-
coloured, the margin thick, persistent, yellowish-horn-coloured,
slightly p u lv e ru len t; hypotheoium colourless; paraphyses very
slender; spores oblong-fusiform, 3-septate, 0,016-18 mm. long,
0,005 mm. th ic k ; hymenial gelatine not tinged, the asci tawny-
wine-red, with iodine.— Lecidea hyalinescens Nyl. in Act. Soc.
Linn. Bord. ser. 3, i. p. 355 (1856); Leight. Lich. FI. ed. 3,
p. 356.
Exsicc. Larb. Lich. Hb. n. 107.
Eesembles a Gyalecta in the paler prominent margin of the
apothecia.
Hdb. On rocks.—B. M. Overspreading mossy stone on bank of
torrent. Twelve Pins, Connemara, Galway.
13. B. cuprea Massal. in Lotos p. 77 (1856).—Thallus effuse,
greenish, whitish or copper-coloured, finely granular, becoming
areolate. Apothecia minute, dark or light-brownish, often with
a dark margin, becoming flattened, chestnut-brown or reddish-
yellow and immarginate; hypothecium colourless ; paraphyses
subdiscrete, colourless ; spores linear- or fusiform-elliptical, 1-3-
septate, 0,015-30 mm. long, 0,002-4 mm. th ic k ; hymenial
gelatine blue with iodine.— Lecidea cupreorosella Nyl. in Mem.
Soc. Sci. Nat. Cherb. v. p. 122 (1857); Cromb. Lich. Brit,
p. 68 ; Leight. Lich. FL p. 335 ; ed. 3, p. 358. L. luteorosella
Nyl. ex Leight. Lich. FI. ed. 3, p. 340 (1879).
Distinguished by the minute usually punotiform and rather dark-
coloured apothecia. The spores vary considerably in size and form
and in all of our specimens of this and the allied species the paraphyses
are more or less clavate or swollen at the tips. Stizenberger
notes (Nov. Act. Acad. Leop.-Carol. xxxiv. Abh. 2, p. 9 (1867)) that
the thallus varies with the locality and in shady situations is greyish-
green or orange.
Hab. On rocks.—Bistr. Rare in N. England and W. Ireland.—
E. M. Bilsdale, Yorkshire; Twelve Pins, Connemara, Galway.
14. B. albidocarnea A. L. Sm.—Thallus effuse, thin, unequal,
rimulose-diffract, whitish or glaucous-white (K —, CaCl — ).
Apothecia moderate, superficial, plane or somewhat convex,
immarginate, pale-flesh-coloured, white within ; paraphyses subdiscrete,
clavate a t the apice s; epithecium and hypothecium
colourless; spores fusiform-ellipsoid or fusiform-oblong, 1-3-
septate, 0,010-18 mm. long, 0,0035-45 mm. th ic k ; hymenial