CRYPTQGAMIA. ALGJE. Lichen. 
17 
Crust rather thick, black. Saucet's elevated, in clusters, when young- en¬ 
compassed by a remarkable grey border, when old, resembling tubercles, 
and without a border. 
(Blackish-grey Lichen. E.) On stones. Dicks, iii. 14. 
L. gibbc/sus. Saucers black, bordered by the crust and sunk into it: 
crust warty, brown. 
Dicks. 6. 5— (E. Bot. 1830, and 1829, fide Hook. E.) 
Crust thickish, unequal, hunched, with wrnrts. Saucers shining, as if 
clammy, the border thick, and in reality nothing more than a projection 
of the crust. Dicks. 
(Gibbous Lichen. L. cechumenus , and L. athrocarpus. E. Bot. 
Lecideafumosa. Achar. Hook. E.) On alpine rocks. On the summit of 
Ben Lawers. 
L. dickso'ni. Saucers blue-black, raised, bluntly bordered: crust rusty 
ochre colour. 
Dicks. 6. 6 — (E. Bot. 1117. E.) 
Crust equal, between wrinkled and tubercled, cracked. Saucers sma 
numerous, scattered, black, covered with a sea-green bluish bloom, th 
bottom depressed, the margin convex and thick. Dicks. (In some young 
specimens we have perceived a lobed appearance towards the edge. E. 
Bot. E.) 
(Blue-black Shielded Lichen. L. CEderi. E. Bot. L. CEderi. 
Achar. Hook. E.) L. ccesius. Dicks, fasc. ii. and With. ed. ii. On slate 
rocks in the mountains of Scotland. (On stones upon Gateshead Fell; 
on walls near Middleton in Teesdale. Mr. Winch. On slate in North 
Wales. E.) 
L. peuina'tus. Saucers blue black, rather convex, of various shapes-: 
crust, rust-coloured, very thin. 
(E. Bot. 2244. E.)— Dicks 9. 4. 
Crust red rust-colour, extremely thin. Saucers generally scattered, some¬ 
times in clusters, rather large, flat, or little convex, somewhat cracked, 
very black within, but as if covered with a blue glaucous moisture ; 
border of the same colour, or blackish. (Mr. Winch remarks that the 
crust is white or ash-coloured, not in general reddish, nor rusty. E.) 
(Frosty-shielded Lichen. L. pruinosus. Lecidea albo-ccerulescens. 
Achar. Hook. On a limestone wall near Gainford, Durham. Rev. Mr. 
Harriman. E. Bot. E.) Stones on the Scotch mountains. Dicks, iii. 15. 
L. cok/ne us. Saucers brown, pale, semi-transparent: border the same: 
crust white, farinaceous. 
(E. Bot. 965. E.) 
Saucers small, scattered, in look and texture like brown horn. Differs from 
/<• sub-Juscus and L. pallidus in having a smooth and even border of the 
same colour and texture as the saucers. 
(Horney-cufped Lichen. E.) Found by Mr. Griffith upon oaksin thedingD 
at Garn near Denbigh. (On oaks in Studley Wood, near llippon, Mr. 
Brunton ; and from Egleston, Durham, bv Rev. Mr. Harriman 
E. Bot. E.) 
L. pal'lidus. Saucers brown, rough, fiat, elevated: the border 
waved, white : crust whitish, hoary. 
VOL. iv. c 
