18. B. Nitschkeana Lahm in Rabenh. Exs. no. 583 (1861).—
Thallus effuse, thin, leprose or granulose, greyish-green or
greenish-yellow ( K - , C aC l- ) , often nearly evanescent. Apothecia
minute, sessile or adnate, convex, immarginate, pale-leaden-
brown or blackish ; hypothecium colourless ; paraphyses scanty,
flexuose, and branched, subdisorete ; spores oblong or fusiform-
ellipsoid, 3-septate, 0,012-20 mm. long, 0,003-4 mm. th ic k ;
hymenial gelatine bluish then wine-red with iodine.—LecZdea
Nitschkeana Stiz. in Nov. Act. Acad. Leop.-Carol. xxxiv. Abh.
2, p. 70 (1867); Cromb. in Grevillea xxii. p. 58. L. spododes
Nyl. in Flora Iii. p. 410 (1869) ; Cromb. in Journ. Bot. vii. p. 233
(1869) & Lich. Brit. p. 70 ; Leight. Lich. PI. p. 261 ; ed. 3, p. 257.
Hab. On old palings.—EZsir. Rare in the South of England and in
Wales.—E. M. Lyndhurst, New Forest, Hants ; Dolgelly, Merioneth.
19. B. sahuletorum Branth & B,ostr. in Bot. Tidsskr. iii.
p. 229 (1869), excl. vars. b & c.—Thallus effuse, thin or very
thin, granulose or leprose, sordid-greyish, or whitish ( K - ,
ra th e r small, sessile, a t first subplané
and thinly margined, then convex and immarginate, pale-brown
or brownish-black, pale within; paraphyses concrete, brownish
a t the apices; hypothecium colourless, brownish above; spores
fusiform, 3-7-septate, 0,018-34 mm. long, 0,006-8 mm. th ick ;
hymenial gelatine deep-blue then dark-violet or tawny-wine-red
with iodine.—B. sphæroides Mudd Man. p. 187 (1861) (non
Koerb.). Lichen viridescens Sm. Engl. Bot. t. 2217 (1810) (non
Schrad.). Lecidea sahuletorum Floerke in Berl. Mag. 1808, p. 309
pro p a rte ; Nyl. in Journ. Linn. Soc. ix. p. 254 (1867) ; Cromb.
Lich. Brit. p. 71 (excl. vars.) & in Grevillea xxii. p. 57 ; Leight.
i ) •4’’ P' L. hypnophila Turn, ex Ach.
Lich. Univ. p. 199 (1810). L. viridescens Hook, in Sm. Engl.
.'^■ P ;. 4^*4 (1833) (non Ach.). L. subretusa Stirton in Gre-
villea 111. p. 24 (1874) (fide Cromb. in Grevillea iii. p. 143) •
Leight. Lich. FI. ed. 3, p. 366. ^
Exsicc. Leight. n. 91 ; Mudd n. 154; Cromb. n. 175 ; Larb.
Lich. Hb. nos. 35, 36, 37 ; Larb. Cæsar. n. 81 ; Johns, n. 339.
Hab. Incrusting mosses on rocks, old walls, and decayed trunks
of trees m maritiine but chiefly upland tracts.—Distr. Widely distributed
m Great Britain, and usually plentiful where it occurs :
apparently rare in W Ire la n d .-E . M. Jersey; Coho and St. Martin’s
Guernsey, Shanklin Downs, I. of Wight; Wadebridge, Newlyn Cliff and
St. Breoclc, Cornwall ; Dittisham Cross, near Dartmouth and Totnes,
Devon; Bathampton Downs, Somerset; Amberley and near Cirencester,
Gloucestershire ; Preston, Shoreham and Henfield Common,
Sussex, Broomfield Essex ; Norton, near Worcester ; Ludlow,
f w ""ni Condower Park, Shropshire; Tenby, Pembroke-
V Glamorganshire ; Nannau and Dolgelly, Merioneth ;
Hewj^b ! ? ’ /^^ir4®’.444®^®4and, Yorkshire; Telsdale, Durham)
Hev®rsham_ Head Westmoreland; Canlochan Glen, Forfarshire;
Killin, Craig Tulloch, Blair Athole and Ben Lawers, Perthshire;
Achosragan, Appin, Argyll ; Craig Cluny, Braemar and Cults,
Aberdeenshire; Glen Nevis, Invernessshire; Dinish, Killarney, Kerry;
Balinakill, Connemara, Galway.
Var. simplicior A. L. Sm.—Externally similar to the type.
Apothecia internally brownish-yellow ; spores very variable in
form and size, oblong, or somewhat clavate, acute a t one end,
■usually 1-septate, sometimes 2- or 3-septate, 0,011-18 mm. long,
0,004-5 mm. thick.—Lecidea sahuletorum f. simplicior Nyl. Lich.
Scand. p. 205 (1861) ; var. Dufourei Cromb. Lioh. Brit. p. 71
(1870); Leight. Lich. FI. p. 338; ed. 3, p. 364; var. mono-
phragmia Nyl. ex Cromb. I. c. ; Leight. II. c. L. Dufourei Ach. ex
N y l.'in Flora 1. p. 373 (1867).
Differs in the form of the spores.
Hah. Incrusting mosses on rooks.—Bistr. Rare in high altitudes.—
E. M. Cader Idris, Merioneth ; Ben Lawers, Perthshire.
Var. obscixrata A. L. Sm.—Thallus effuse, thin, granulose,
greyish-white or greyish. Apothecia moderate in size, sessile,
concave and thickly margined, a t length convex and immarginate,
brown, reddish-brown, or blackish, pale within ; paraphyses
loosely coherent ; epithecium and hypothecium yellowish-brown ;
spores ellipsoid or subfusiform, 3-septate, 0,015-30 mm. long,
0,005-8 mm. thick ; hymenial gelatine bluish then dark-violet
■or wine-red with iodine.— Lecidea sphæroides var. (3 obscurata
Sommerf. FL Lapp. Suppl. p. 165 (1826). L. sahuletorum f.
triplicans Nyl. Lich. Scand. p. 205 (1861). L. triplicans Nyl.
Lich. Fret. Behring, p. 24 (1888) ; Cromb. in Grevillea xxii.
p. 57.
The apothecia are larger and darker than those of the species ;
they are very plentiful in our single specimen.
Hab. On mosses on rocks and on trees.—B .M. On mossy boulders,
Morrone, Braemar, Aberdeenshire.
Var. septenaria A. L. Sm.'—Thallus effuse, greyish-green.
Apothecia convex, brownish or pale-leaden-coloured ; hypothecium
brownish ; paraphyses colourless, ra th e r stout, subconcrete,
septate and somewhat clavate a t the tips ; spores fusiform,
5-7-septate, 0,017-34 mm. long, 0,006-7 mm. thick.—Lecidea
metamorphea var. septenaria Nyl. in Flora lix. p. 239 (1876) ;
Leight. Lioh. FL ed. 3, p. 356.
Distinguished from B. metamorphea by presence of paraphyses.
In habit and general appearance it resembles E. sahuletorum, differing
only in the somewhat peculiar paraphyses.
Hah. On decaying mosses in fissures of rocks.—E. M. Near
Kylemore, Connemara, Galway (the only locality).
Subsp. luhens A. L. Sm.—Thallus effuse, thinnish, granulose,
greyish-glaucous. Apothecia small, subplane, then convex and
immarginate, pale-flesh-coloured or leaden-brown ; paraphyses