230 LICHENACEL. [SOLORINA. 
which at length forms an evanescent margin. Al the species are normally 
terricole, the thallus being closely adnate to the ground. With the excep- 
tion of S. octospora, all the 
European species have been 
found in Britain. 
1. 8. crocea Ach. Lich. 
Univ. (1810) p. 149.— 
Thallus orbicular, thickish, 
appressed, more or less 
smooth, laciniato - lobed, 
undulate at the margin, 
dark-greenish when moist, 
reddish- or  cinnamon- 
greyish when dry; be- 
neath (as also the medulla) 
deep orange- or saffron- 
coloured, villoso - nervose, 
indistinctly subrhizinose. 
Apothecia moderate, plane, 
rotundate or oblong, tumid, 
dark brownish-red ; spores 
6-8nie, oblong or fusi- 
formi - oblong, brownish, aaa 
0,035—45 mm.long,0,010— ae a2 ech hee 
© s Ne Nolorina saccala ch.—a. Gonidaimia, oo, 
ae es cae ee b. Theea and parapbysis, X350. ¢. Three 
Tr. 1. Dp BOOK. Fl spores, x 5U0. 
Scot. ii. p. 36: Sm. Eng. 
Fl. v. p. 214; Mudd, Man. p. 85; Cromb. Lich. Brit. p. 29; Leight. 
Lich. Fl. p. 112, ed. 3, p. 106.—Lichen croceus Linn. FI. Snec. 
(1755) p. 1101; Lightf. Fl. Scot. ii. p. 856; Huds. Fl. Angl. ed. 2, 
p. 548; With. Arr. ed. 3, iv. p. 68; Eng. Bot. t. 49. Lachenoides 
subtus croceum, peltis appressis Dill. Muse. 211, t. 30. f. 120,— 
Brit. Hxs.: Cromb. n. 46; Dicks. Hort. Sic. n. 50. 
W.G.5, 9 a 
A beautiful plant, readily distinguished by the saffron-colour of the 
underside of the thallus, which, even when erowing, is generally per- 
ceptible from the margins being more or less subtree and upturned. The 
apothecia are at first slightly immersed and rounded, then plane, oblong, 
and at length difform and somewhat large. On the thallus is occasionally 
seen the parasitic fungus, Spheria lichenicola DeNot. 
Hab, On the ground, and in fissures of rocks and boulders in alpine 
places.— Distr. Rather local and scarce towards the summits of some of 
the higher Scottish Grampians, abundant on the top of Ben Lawers; very 
yare on the mts. of S.W. Ireland.—B, M.: Ben Lomond, Stirlingshire ; 
Ben More, Benteskerney and Ben Lawers, Perthshire ; Clova Mts., For- 
farshire ; Lochnagar, Morrone, Ben-naboord, and Ben Macdhui, Aberdeen- 
shire; Ben Nevis, Inverness-shire. Brandon Mts., co. Kerry. 
2. 8. saccata Ach. Lich. Univ. (1810) p. 149.—Thallus orbi- 
cular, submembranaceous, smooth or subsmooth, lobato-divided, 
pale-greyish or pale-brownish, occasionally white-pruinose ; beneath 
