thin, unequal, pale or whitish (K —, CaCl — ), often evanescent.
Apothecia small, a t first plane, with thin white epithalline
margin, then convex and immarginate, pale-brown, sordid- or
pale-reddish, colourless within ; paraphyses concrete, pale a t the
apices ; hypothecium colourless; spores 8-16 in the ascus, oblong
or oblong-fusiform, 1-2-septate, 0,009-16 mm. long, 0,004-5 mm.
thick ; hymenial gelatine bluish then wine-red or violet with
iodine.—Lecidea cyrtella Ach. Meth. p. 67 (1803); S. F. Gray
Nat. Arr. i. p. 471 ; Cromb. Lich. Brit. p. 72 ; Leight. Lich. FI.
p. 318 ; ed. 3, p. 341. L. anomala Ach. Syn. p. 38 (1814) pro
parte ; Hook, in Sm. Fngl. FL v. p. 182 pro parte. Lichen
cyrtellus Sm. Fngl. Bot. t. 2155 (1810).
Lxsicc. Larb. Lich. Hb. n. 173.
Eeferred sometimes to Lecania (Lecanoracece) on account of the
thin epithalline margin which disappears soon, the species becoming
wholly biatorine. The spores are usually of the 1-septate type of
Biatorina, though in the same apothecia there are to be found
2-septate spores like those of Bilimbia.
Hdb. On the bark of trees.—Distr. Not unfrequent throughout
the British Isles.—B. M. Launceston, Cornwall ; Shanklin, I. of
Wight; Cockington, Devon; Henfield, Sussex; Hadleigh Woods,
Southend, Essex ; Farmington and near Cirencester, Gloucestershire ;
Thame Park, Oxfordshire ; Malvern, Worcestershire ; Ayton, Cleveland,
Yorkshire ; Glen Falloch, Perthshire ; Eiverstone, near Cork ; Mount
Shannon and Tervoe, Limerick ; Dromoland, Clare.
15. B. GrilSthii Massal. Bic. Lich. p. 134 (1852) pro parte ;
Mudd Man. p. 176.—Thallus effuse, thin, unequal or subgranular
and wrinkled, whitish or greyish-white (K + yellow, CaCl — ),
occasionally nearly obsolete. Apothecia small or submoderate,
adnate, plane, a t length slightly convex, margined, brownish-
flesh-coloured, dull-brown or blackish, the margin thin, pale ;
paraphyses more or less discrete, dark or yellowish a t the apices ;
hypothecium colourless ; spores fusiform or oblong, thinly 1-
septate, 0,010-20 mm. long, 0,035-45 mm. th ic k ; hymenial
gelatine deep-blue then more or less sordid-wine-coloured with
iodine.—Lichen Griffithii Sm. Engl. Bot. t. 1735 (1807). Lecidea
Griffithii Hook, in Sm. Engl. FI. v. p. 177 (1833) ; Tayl. in
Mackay FI. Hib. ii. p. 120 ; Cromb. in Grevillea xxii. p. 11 (incl.
f. limitata Cromb.). L. tricolor Nyl. Lich. Scand. p. 207 (1861)
(non With, vide Grevillea xii. p. 60) ; Cromb. Lich. Brit. p. 72 ;
Leight. Lich. PI. p. 321 ; ed. 3, p. 337. Biatora mixta Fr. in
Yet. Acad. Handl. 1822, p. 267.
Lxsicc. Bohl. n. 119 ; Mudd n. 155 ; Leight. n. 60 (as Biatora
mixta) ; Larb. Lich. Hb. nos. 268, 345.
The original specimens were collected by Griffith and preserved
in Withering’s herbarium labelled Lichen corneus. Withering’s
description and figure of L. corneus do not agree with these specimens
(see p. 9), as was pointed out by Smith (Engl. Bot. 1 .1735), who
determined and named the plant L. Griffithii in honour of the
collector.
Hab On smoothish bark of trees, rarely on naked trunks, in
upland, rarely maritime wooded tracts.—Dwir. Not uncommon m
England, scarce in the S.W. Highlands of Scotland S. Ireland, and
the Channel Islands.—E. M. St. P e te rs Valley, Jereey; Eunton,
Norfolli; Gosfield Hall, Quendon Wood and Epping Forest, Essex ;
Iffitham, Kent; St. Leonard’s Forest, Sussex; New Forest, H a n ts ,
Ullacombe, Bovey Tracey, Devon; Oakley P ^ k , Cirencester and
Sapperton, Gloucestershire ; Twycross, Gopsall Park, Leicestershire ,
Malvern, Worcestershire; Limekiln Wood, Wrekin and H a u g h m ^
Hill, Shropshire; near Harboro’ Magna Warwickshire, Bufith,
Brecknockshire ; Garn, Denbighshire ; Ludlow and Haughmond Hill,
Shropshire; Airyholm Wood and neM Ayton, ^leyeland Yorkshire,
Teesdale Durham ; bv Looh Lomond, Dumbartonshire , Glen Falloch,
S r th s h h e Tipperary ; Deer Park, Castle Bernard, Cork.
16 B Bouteillei Arnold ex Syd. Flecht. Deutschl. p. 167
/1887).—Thallus eflFuse, thin, filmy, minutely granulose, pa e-
creenish-white (K - , CaCl - ). Apothecia minute, adnate-sessile,
plane, yellowish-flesh-coloured, the margin thin, entire or crenate-
flexuose, p aler; hypothecium colourless ; p a rap h é e s slender
irregular ; spores ellipsoid, minute, 0,008-10 mm. long, 0,003 4
mm. th ick ; hymenial gelatine bluish then sordid-yellow, the asci
persistently bluish a t the apices, with iodine.—Parmcha Bom-
teillei Desmaz. in Ann. Sci. Nat. ser. ^ vii. (1847).
Lecidea Bouteillei Nyl. in Npt. Sallsk. Faun. & FL Fenm n.
ser. V . p. 152 (1866); Cromb. in Journ. Bot. ix. p. 1/8 (1871),
Leight. Lich. FL p. 323 ; ed. 3, p. 343.
Hab. On leaves of box and fir, a n d on elm bark. Distr. Eather
rare in the Channel Islands and S. England on leaves of box.—E. M.
Danny and Woolstonbury, Sussex.
17. B. erysihoides Th. Fr. in Vet. Akad. Forh. 1864_, p. 271.
—Thallus subeffuse, very thin, leprose, green or greenish, subobsolete
( K - , C aC l- ) . Apothecia small somewhat_ convex,
immarginate, opaque, brick-coloured, reddish or yellowish, concolorous
with in ; paraphyses coherent colourless ; hypothecium
colourless; spores shortly ovoid, 0,007-10 mm. long 0,003-5 mm.
thick ; hymenial gelatine bluish then sordid-wine-red ^^ th iodine.
—Lecidea erysihoides Nyl. in Not. Sallsk. Faun. & Fh Fenn. n.
ser. i. p. 232 (1858-9) ; Cromb. in Grevillea xxii. p H l & Lich.
Brit. p. 72 (excl. f. sordidesacns) ] Leight. Lich. 11. p. 3 -3 ,
ed. 3, p. 343 (excl. same form).
From its external aspect might readily he taken ®4at® °f
Lecidea vernalis, but is definitely by the ®P°res,
which are somewhat similar to those of s i t u ^
iisiiallv scarcely visible, is often entirely obsolete In m oist situations
pale,, convex, and several congregate
(i. pallida Nyl. ex Cromb. Lich. Brit. I. c.).