CRYPTOGAMIA. ALGiE. Lichen. 
21 
On Ben Lawers and other mountains of Scotland. (On Craig Cailleach at 
great heights, and always on the ground amongst moss and grass. Mr. 
Brown. Aug. E.) 
L. cerFnus. Saucers pale yellow, smooth; border and under side 
whitish ; crust grey white. 
Hedw. Stirp. ii. 21. B. 
The saucers frequently swell out so much in the middle as to assume the 
form of tubercles, covering the whole surface of the crust. They change 
to dirty brown yellow when dry, but when macerated regain their former 
colour, like that of bees wax. 
(Waxy Lichen. E.) On the bark of trees. Dicks, iii. 14. On elm and 
ash frequent. Mr. Griffith. 
L. QUADiu f color. Saucers brown yellow; changing to black; flat, 
crust powdery, grey white. 
Dicks. 9. 3.— {E. Bot. 1185. E.) 
Crust powdery, thin, greyish, covered with white, mealy, globular particles. 
Saucers numerous, yellowish, and rather concave (and gelatinous, E. Bot. 
E.) when young with a white border ; black and convex when older. 
(Acharius and Hooker also include under Lccidea decolorans, (3 granulosa , 
Lichen escharoides. E. Bot. 1247. 
Four-coloured Lichen. E.) Mountains in Scotland, on the ground. Dicks, 
iii. 15. (Since observed by Mr. Turner at Lound, near Yarmouth, and 
by the Rev. Mr. Harriman, at Egleston, Durham. E. Bot. On Muggles- 
wick Fell; also near Medomsley, Durham. Mr. Winch. E.) 
L. upsalien'sis. Saucers cream colour; border white; crust white, 
composed of awl-shaped masses; scored, brittle. 
Dicks. 2. 7— Hoffm. Enum. 7. 1 — Hoffim. Licli. 21. 2— {E. Bot. 1634. E.) 
The size of L. saxatilis, ash-coloured, white, composed of bristles; bristles 
straight, white, shrivelling, prostrate, unequal, confused, very simple, as 
long as the nail, very brittle, frequently several united at the base. 
Saucers white, with a blunt border, rather large ; from the root, not 
placed on the bristles. Linn. Crust of a milky whiteness, very brittle, 
investing slender leaves of grass or moss. Saucers globular, dimpled, 
crowded, cream coloured. Hoffman. 
(Bristly-crusted Lichen. E.) Heaths near Norwich. 
L. BYs f biNUs. Saucers yellow, with a white border; flat, very small; 
crust powdery, blackish. 
Hoffm. Enum. 4. 7 —( E. Bot. 432. 
Small-shielded Lichen. Lecidea anthracina. Achar. Hook. E.) Trees 
and stones, Scotland. 
L. fla'vicans. Saucers brownish yellow ; crust yellow with a green¬ 
ish cast. 
(E. Bot. 2157. E.)— Dill. 18. 18. A. C. 
Habit that of L. candelarius, but the crust circular, wrinkled, greenish ; and 
the saucers of a brownish yellow hue, or earthy yellow ; convex. Huds. 
Crust rather inclined to assume a leaf-like appearance at the edge. 
(Yellow Wall Lichen. L. murorurn. Achar. Prod. Lecanora murorum* 
Achar. Syn. Hook, E.) 
