Nyl in Mora lyi. p. 296 (1873); Cromb. in Grevillea ii. p 91-
Leight. Lich. FI. ed. 3, p. 312. ^ ’
Occasionally 20 or 30 small apothecia are conglomerate; the
isolated apothecia are larger and have a thicker margin.
Exsicc. Larb. Lich. Caesar, n. 39.
Hab On granitic rocks in maritime and mountainous regions-
R "V “ r44^®i.43hannel Islands, W. Ireland, In d the
N. of Scotland.—A. M. Le Fret, Noirmont, Jersey; Ben Lawers
Ben Vrackie, and Ben-y-gloe, Perthshire; Morrone, Braemar, Aber-
deenshire; Sands of Culbin, Morayshire.
h u 4Loerb. Syst. Lich. Germ. p. 252
(1855).—Thallus greyish, effuse or absent. Apothecia black
scattered or crowded and aggregate and then difform, olosel!
adnate, plane with a prominent flexuose margin; hypothecium
ttucker, blackish-brown, hymenium narrow, bluish-grey ■ paraphyses
thick, conglutinate, black a t the apices ; spores minute
elhpsoid-elongate.—Leight. Lich. PL ed. 3, p. 313. ’ '
A doubtful species There is one specimen in the British Museum
cql ected and named by Larbalestier. The hymenium is bluish-gre!
with a pinkish tinge, especially in a thick section. The spores are
undeveloped; their measurements are nowhere recorded.
Hab. On rocks.—A. M. La Moye, Jersey.
139. L. phylliscina Nyl. in Flora Ivi. p. 21 (1873)—Thallus
obsolete or scarcely visible. Apothecia moderate, umbilicately
affixed, thick,_ obtusely margined and sublohulate, black, concolorous
w ith in ; paraphyses submoderate; hypothecium thick
and with the perithecium (in thin section) yellowish-infuscate
(K + purplish); fully developed spores not se e n ; hymenial
gelatine deep-blue, the asci a t length wine-reddish with iodine
—Cromb. in Journ. Bot. xi. p. 141 (1875).
The apothecia are often aggregate and sometimes umbonate. A
doubtful species, since the spores in all known specimens both from
Jjapland and Scotland are immature.
Hab. On a quartzose boulder.—A. M. Morrone, Braemar, Aber-
deenshire. ’
140. L. umbonella Nyl. in Flora xlix. p. 372 (1 8 6 6 ).-
Thallus determinate, in small roundish patches, areolate, smooth
whitish or pale-yellowish (K + yellow, then reddish, C aC l-)
Apothecia small, innate, margined, usually subgyrose or umbonate
in the centre, black ; paraphyses rather slen d e r; epithecium
nearly colourless; hypothecium brown or brownish (the umbo
P®7 j'4iecium brownish-black in thin section) ; spores ellipsoid,
0 ,0U -1 4 mm. long, 0,006-8 mm. th ic k ; hymenial gelatine bluish
^^4. Hist. ser. 3, xix. p. 332
(1867); Cromb. Lich. Brit. p. 8 5 ; Leight. Lich FI n 297 •
ed. 3, p. 305. ’
Tlie thallus grows in small more or less insulated patches, and is
at times associated with L. polycarpa. The apothecia, a t length
slightly prominent, are usually numerous on the thalline patches.
The spermogones,- solitary or congregate and somewhat prominent,
are frequent, with spermatia cylindrical, straight, 0,006-7 mm. long,
scarcely 0,001 mm. thick.
Hab. On schistose rooks in mountainous regions.—Distr. Eare on
the Scottish Grampians.—A. M. Ben More, Perthshire ; Cairn Turo,
Braemar, Aberdeenshire.
141. L. illita Nyl. in Flora Ixii. p. -356 (1879).—Thallus
effuse, thin or very thin, appianate, cracked-areolate, the areolæ
angulose, yellowish-brown or pale-greyish (K(CaCl)+ reddish,
medulla CaCl+ reddish) ; hypotballus very thin, umbrine-black.
Apothecia minute, innate, margined, umbonate in the centre,
black ; paraphyses slender, scanty ; perithecium and umbo
brownish-black in thin section ; hypothecium thin, almost
colourless; spores ellipsoid, 0,012-16 mm. long, 0,008-0,011 mm.
thick ; hymenial gelatine tawny-wine-reddish with iodine.—
Cromb. in Grevillea viii. p. 112. Specimen not seen.
Differs from the preceding in the thalline reaction. Apothecia
1 or 2 in each thalline areola ; the spermogones have the
spermatia acicular, 0,005-6 mm. long, 0,0005 mm. thick, on simple,
moderate sterigmata. I t has been detected at Mozi in Japan {vide
Nyl. Lich. Jap. p. 75), with larger spores, 0,014-20 mm. long,
0,009-13 mm. thick.
Hab. On argillaceous schist a t Clifton, Somersetshire.
142. L. alumnula Nyl. in Flora lix. p. 574 (1876).—Thallus
determinate, thin, white ( K - , C a G l - ) ; hypotballus black,
limiting the thallus. Apothecia minute, subinnate, plane,
margined, often subumbonate in the centre, black; paraphyses
concrete, brownish-black a t the apices ; hypothecium brownish-
black ; spores ellipsoid, 0,009-0,012 mm. long, 0,005-6 mm.
thick; hymenial gelatine bluish, the asci a t length pale-wine-
coloured with iodine.—Cromb. in Grevillea v. p. 107 • Leio-ht
Lich. FI. ed. 3, p. 302. > & -
Frequently grows in sublobulate patches on the thallus of
A. contigua. Our specimens are well fertile, with the apothecia at
times subconfluent.
R quartzose rocks of a stream in an upland d istric t.-
B. M. Base of Diamond Mt. and Letterfrack, Connemara, Galway
(the only locality).
143. L. limborina A. L. Sm.—Thallus thin or obsolete,
: efluse, blackish or greyish, slightly rimulose. Apothecia small,
black, adnate or^ appressed, centrally umbonate or tuberoulate,
/ the margin tumid, incurved and uneven ; hypothecium dull-
;; bro-svn; paraphyses indistinct, becoming black and carbonaceous.
■ ■ a t the tips ; spores ellipsoid, colourless becoming brown, 0,018-