,433- Ii. tephrizans Leight. in Trans. Linn. Soc. ser 2 i
p. .57, t. 32, hgs^3 and 4 (1878).—Thallus almost obsolete, oAly
r . r i '^hitish depressed scattered areolæ remaining (K -
O a U - ) ; hypothallns predominating, blackish-grey. Apotheci!
S a “ t i r * 'v T ’ concave, prominent, sessile,
Î d ï l - FG gin eventually obliterated; hypothecium
nilum ih ’r " " ®!^4itended by a pale-greyish-blue hyaline excipulum,
the hymenium thm, pale-greyish-blue ; paraphyses distinct
conglomerate, blackish a t the tip s ; spores narrowly ellipsoid’
minute 0,009-10 mm. long, 0,005 ^m . th ick ; hymenill i e f a £
dirty-blue with iodine ; spermatia minute, shortly cylindrical
stra ig h t._L e ig h t. Lich H . ed. 3, p. 311. Specimen not seen ’
Hah. On hard slaty rooks.-Distr. Bare in Wales and W.'Ireland.
TL i f ^ ’ 4^- Floerke ex Schær. Spicil. p. 127 (1812) —
a i n iT . or ashy-grey, thin, smooth, crackedareo
ate’ the areolæ plane (K + yellow, then deep orange-red).
Apothecia numerous, scattered or aggregate, innate, plane, naked
or pruinose with a thinnish prominent entire or flexuose margin •
hypothecium dark-brown; paraphyses distinct somewhat clavate
w T o05 7 spores ellipsoid, 0,012-15 mm.
Ion 0 ,æ 5 -7 mm th ick ; hymenial gelatine bluish with iodine
-C rom b . Lich._Brih p. 8 3 ; Leight. Lich. PI. p. 289; ed. 3,'
p. 295.^ L. ambigua Pr. Lich. Suec. Exs. n. 407 • Stenh Sched
Crit XIV. p 11 (1833) (non Ach.) ; Mudd Man. p. 206 pro parte ‘
Exsicc. Leight. n. 301 ; Johns, n. 351. ^ ^
The smooth thallus and innate apothecia with prominent marvir,
resembling somewhat those of Lecanora A f r f e o n n ,V T r d i s 3 v e
character to this species. I t differs from L. ¿lana in the dark
hypothecium and the somewhat larger spores. The apothecia are
sometimes immersed and the surrounding thallus is brolmn aw^y
S o m ^ ïJ U e t E tC d ^ E T n d ^
Iielriw and Capel Curig, Carnarvonshire ; Cwm Pfynon, Flint • near
Thirsk, Yorkshire; Camlochan, Forfarshire; Portlethen, KincaMine-
Achosragan Hill, Appm, Argyll; Ben Lawers, Perthshire • Morrone’
Braemar, Aberdeenshire ; Mangerton, Kerry. ’ ’
rru^n ®^4)kochiana Cromb. in Journ. Bot. ix. p. 179 ('1871)
—Thallus crustaceous, smooth, whitish or greyish, determinate
crackedrareolate, the areolæ plane, contiguous (K + y e llow ish
en red, _.aCl ). Apothecia black, numerous, innate or sessile
with a prominent margin; hypothecium colourless or pale-
44ps; spores ellipLid, '
small, 0,008-12 mm long, 0,005-6 mm. thick ; hymenial gelatine
blue with iodine.—Leight. Lich. FI. ed 3 p 295 T ,
f. subkochiana Nyl. in Flora Iii. p. 85 (1869). ' ' a a
?P°44ieoia resemble in outward form those of L. lactea but
differ m the lighter hypothecium and the somewhat smaller spore’s.
Hab. On schistose rooks in maritime and subalpine regions.__
I Bistr. Eare in Wales and N.E. Scotland.—B. M. Llyn Geironydd
I and Trefriw, Carnarvonshire; coast of Kincardineshire.
136. L. contiguella Nyl. in Flora Ivi. p. 295 (1873).—Thallus
determinate, thinly areolate-rimose, whitish (K —, CaCl— me-
| d u l l a l - ) ; hypotballus black, limiting the thallus, Apothecia
J moderate, adnate, plane, thinly margined, black, concolorous
i within; paraphyses slender, almost d istin c t; epithecium bluish-
black; hypothecium brown ; spores oblong, 0,011-15 mm. Ion«-,
0,0045-55 mm. th ic k ; hymenial gelatine bluish then wine!
reddish with iodine.—Cromb. in Grevillea ii. p 90 • Leio-ht
Lich. FI. ed. 3, p. 296. ^ •
J Eesembles.A. lactea Floerke, but is well distinguished by the
absence of any thalline reactions. The apothecia are often crowded
M and angulose, with the margin more or less flexuose. The spermo-
® gones, rarely present in the single specimen gathered, have the
spermatia baoillar, about 0,007 mm. long, 0,001 mm. thick.
m 47“^- On a felspathic boulder in an alpine locality.—A. M. Morrone
J Braemar, Aberdeenshire (the only locality). ’
137. L. auriculata Th. Fr. Lich. Arct. p. 213 (1860b—Thallus
whitish, ashy-grey or brownish, cracked-areolate ' sometimes
evanescent (K - , C aC l-). Apothecia appressed or adnate, a t
hrst plane then more or less convex with the centre somewhat
depressed-umbilicate, margin persistent, flexuose, becoming
rounded-lobate ; hypothecium thick, blackish-brown ; paraphyses
loosely coherent, clavate and dark-brown or greenish-blue+lack
^ *u®ao7 ®V! asci somewhat scarce; spores ellipsoid-oblong,
I small 0,006- 1 mm. long, 0,0025-4 mm. th ic k ; hymenial gelatine
n ® L . sarcogyniza Nyl. in Flora li. p. 475
(1868). Cromb in Journ. Bot. vii. p. 106 (1869) & Lich. Brit.
+ 82; Leight Lmh. El p 289 ; ed. 3, p. 312. L. phjlliscocarpa
Nyl. in Elora Nii. p. 314 (1874); Cromb. in Grevillea iii. p. 23 ;
Leight. Lich. El. ed. 3, p. 312. ^
by the irregular lobate apothecia which sometimes
at the b a s 7 ^ substratum more or less white-farinose ( I - )
“ antime and mountainous regions.—AZsZr.
R ® 7 PI 44ie Grampians and on the east coast of
L a w 7 ^ 1 Fender and Craig Tulloch, Blair Athole, Ben
Lawers and Ben Vrackie, Perthshire; near Portlethen, Kincardine;
r ! XT ^4orrone, Braemar, Aberdeenshire; Ben Cruachan,
A rg y ll, Glen Nevis, Invernessshire.
Yar. ¡3 diducens Th. Fr. Lich. Scand. p. 499 (1874).—Thallus
evanescent. Apothecia scattered or usually aggregate.—A
Nyl in Flora xlviii. p. 148 (1865); Cromb. Lich. Brit.
, eig , Lich. FI. p. 2 9 8 ; ed. 3, p. 309. L. confoede rans