greyish-white or -brown (K + brownish, CaCl + pale-yellowish-
brown, medulla I — ) ; hypotballus thin, black. Apothecia small,
black, subsessile, plane with a thin entire margin ; hypothecium
blackish-brown ; paraphyses slender, dark-brown a t the apices ;
spores 1 or 2 in the ascus, ellipsoid or oblong-ellipsoid, a t first
colourless, becoming brownish-black, muriform, large, often
broadly halonate, 0,040-57 mm. long, 0,023-32 mm. thick ;
hymenial gelatine deep-blue with iodine.—Bh. Montagnei Flot.
ex Koerb. Syst. Lich. Germ. p. 258 (1855) ; Mudd Man. p. 219.
Lecidea geminata Flot. ex Nyl. in Ach. Soc. Linn. Bord. p. 375
(1856) ; Cromb. Lich. Brit. p. 87 ; Leight. Lich. FL p. 349 ;
ed. 3, p. 377.
Hab. On alpine rocks.—B. M. Craig Guie, Braemar, Aberdeenshire.
79. BOMBYLIOSPORA De Not. in Massal. Ric. Lich.
p. 114 (1852). (PI. 16.)
Thallus crustaceous. Algal cells Protococcus. Apothecia
light- or dark-coloured with a proper margin only ; ascus 1-
(8-) spored ; spores large, elongate-ellipsoid, colourless or faintly
coloured, without a mucilaginous epispore (not halonate), multiseptate.
The onij' representative of this genus in the British Isles has a
1-spored ascus. The spermogones have shnple sterigmata and
cylindrical, straight spermatia.
1. Bombyliospora incana A. L. Sm.—Thallus effuse, thickish,
glaucous-green when wet, creamy-yellow when dry, granular-
leprose (K+yellowish, CaCl — ). Apothecia large, adnate, plane
or tumid, reddish-brown, the margin obtuse, persistent, paler ;
hypothecium brownish ; paraphyses slender, discrete, bright-
yellowish-brown a t the tips ; spores elongate-ellipsoid, usually
7-10-septate, 0,070-160 mm. long, 0,025-35 mm. thick ; hymenial
gelatine yellowish, the asci reddish, with iodine.—Lichen incanus
Ach. Lich. Suec. Prodr. p. 7 (1798) ? Sm. Engl. Bot. t. 1683 (1807).
Lecidea incana S. P. Gray Nat. Arr. i. p. 470 (1821); Hook. FI.
Scot. p. 38 & in Sm. Engl. El. v. p. 181, pro parte ; Tayl. in Mackay
FI. Hib. ii. p. 126? Biatora pachycarpa Fr. Lich. Eur. p. 259
(1831). Lecidea pachycarpa Duf. ex Nyl. in Act. Soc. Linn.
Ilord. sér. 3, i. p. 364 (1856) ; Cromb. Lich. Brit. p. 75 ; Leight.
Lich. FI. p. 336 ; ed. 3, p. 361. Bombyliospora pachycarpa
Massal. Ric. Lich. p. 115, fig. 226 (1852); Mudd Man. p. 189.
Sometimes confused with Buellia canescens {Lichen incanus
Relhan non Smith) (see p. 166).
Hab. On the trunks of old trees and on shady rooks in upland
wooded districts.—Distr. Only sparingly in a few localities of
S. England, N. Wales and S. Ireland.—B. M. New Forest, Hants ;
St. Leonard’s Forest, Sussex; Ulting, Essex; Cwm Bychan,
Merioneth; Dinish Island, Cromaglown, Killarney and Dunkerron,
Kerry.
8 a LOPADIUM Koerb. Syst. Lich. Germ. p. 210 (1855).
Thallus crustaceous. Algal cells Protococcus. Apothecia
light- or dark-coloured with a proper margin only; ascus
normally 1-spored sometimes 4-8-spored ; spore large, colourless
or brownish, without a mucilaginous epispore (not halonate),
muriform. Spermogones with septate sterigmata and short
straight ovate or ellipsoid spermatia.
1. L. pezizoideum Koerb. I. c. — Thallus effuse, thinnish,
granulose- or suhsquamulose-concrescent, dark-grey or brownish
(K —, CaCl — ). Apothecia elevated, moderate, somewhat concave,
brownish-black, white within under the epithecium, the
margin thin, entire, inflexed, p a le r; hypothecium brownish-
black ; paraphyses thickish, concrete, black a t the apices; spores
solitary, ellipsoid, brownish, large, 0,065-110 mm. long, 0,030-46
mm. thick ; hymenial gelatine not tinged, but the asci reddish-
wine-coloured with iodine.—Mudd Man. p. 190. Lecidea pezi-
zoidea Ach. Lich. Univ. p. 182 (1810); Cromb. Lich. Brit,
p. 75 ; Leight. Lich. FI. p. 318; ed. 3, p. 375.
A rather variable plant as to the character of the thallus and the
size of the apothecia in countries where it is more common than in
Great Britain. Our specimens, which are only muscicolous,
represent the type as described by Acharius. In these, which are
well fertile, the thallus, when wet, is more or less brownish-green.
Hab. Incrusting mosses on rocks, rarely on earth in their crevices
in alpine situations.—Distr. Extremely local, having been met with
only on the Grampians, Scotland.—B. M. Craig Calliach and near
the summit of Ben Lawers, Perthshire ; Braemar, Aberdeenshire.
2. L. fuscoluteum Mudd Man. p. 190, t. 3 fig. 73 (1861).—
Thallus effuse, thin, granulose-verrucose, white or greyish-white
(K+yellow, CaCl — ). Apothecia moderate or somewhat large,
elevato-sessile, a t first slightly concave, then plane, sordid-orange-
coloured, ochraceo-pruinose, the margin persistent, thick, inflexed,
p aler; hypothecium colourless; paraphyses slender, subconcrete,
tawny a t the apices; epithecium granulose, K + p u rp lish ; spores
solitary, colourless, ellipsoid or oblong, a t times difform,
0,048-100 mm. long, 0,024-55 mm. th ic k ; hymenial gelatine
sordid-bluish, then, especially the asci, deep-red or tawny with
iodine.—Lichen fuscoluteus Dicks. PI. Crypt, ii. p. 18, t. 6. f. 2
(1790); Engl. Bot. t. 1007; With, Arr. ed. 3, iv. p. 24.
Lecidea fuscolutea Ach. in Vet. Acad. Handl. 1808, p. 266 ;
S. P. Gray Nat. Arr. i. p. 472 ; Hook, in Sm. Engl. PI. v. p. 183 ;
Cromb. Lich. B rit p. 75; Leight. Lich. FI. p. 351 ; ed. 3, p. 380.
Exsicc. Cromh. n. 87.
Hab. Incrusting decaying mosses in alpine places.—Distr. Rare
in N. England and the Highlands of Scotland.—B. M. Teesdale,
Durham ; north side of Loch Taj', Ben Lawers and Craig Calliaoh,
Killin, Perth sh ire ; Ben Cruachan, Argyll.