CRYPTOGAMIA. ALGZ. Lichén. D. Somewhat crus+ 31 
—- taceous, leaf-like, tiled, loose. 
L. Saucers brown, border white: foliag sea-green, with tilia’ceus. 
dots of the same colour; leaves tiled, lobes rounded 
Hoff. enum. 16. 2-E. bot. 700. sg 
Leaves in a circular form, wide-spreading, lobes jagged and 
indented, Samcers greenish when wet. HorrMan. 
Qn the bark of trees; Dicks. iii, 16. 
L. Saucers tusty, brown, citcular, flattish, raised; border diffu’sus. 
whitish, scolloped; foliage glaucous, pale, tiled ; 
“ leaves with many heaplalgetcete blunt, cutled, 
_ powdery. 
Dicks. 9. €—E. bot. 858. 
L. aleurites. E. bot.On old pales in Croft-castle Park, 
Herefordsh. Dicks. iii. 17. 
L. Saucers red brown; on pedicles: leaves whitish above, physo’des. 
black underneath, hollow as if inflated: segments 
jagged, blunt. 
E. bot. 126-Fl, dan. 1186. 2.—-Hedawig. theor. 31. 183. 
184. 185—Dill. 20. 49—Hoffim. enum. 15. 2-Mich. 50. ard. 
25. 1. 2Facg. coll. iii S—Pets gar. 14. 6. 
Grows half upright, variously cut and divided, the shorter 
plants most cut, and assuming a citeular figure. Segments blunt, 
as if lopped at thé ends, with 2, 3, or 4 clefts. Leaves 
smooth, grey white or glaucous green; and convex above, hol- 
lowed, black, and rough underneath; formed of 2 layers with 
a hollow between them, which is peculiar to this species. ‘The 
whole plant more or less mealy. Saucers on short foot-stalks, 
concave, brown green, or reddish or yellowish brown within, 
the outside colour of the plant. In my specimens those plants 
only are mealy .which have no saucers. Dit. Dr. Smith ob- 
serves, that it is rarely found with saucers, but that he has 
found the mealy protuberances in the same plant with the sau- 
cers. See E. bot. p. 126. 
Trunks of trees, stones, stems of heaths, P. Jan.—Dec. 
L. Saucers red brown: leaves pale yellow green, smooth, centrif’ ugus 
_ Jagged, pointed from a centre, 
Hoffm. enum. 10. 3—Dill. 246 75—Hoffm. lich. 16. 2~Fl, 
lapp. 11. 2-Buxb. ii. 7. 3. 
Distinguishable at first sight b: send from a centre to 
the ps cea and ecadiatly "abe in the middle. Linn. 
Circular, flat, outer leaves largest, tiled, neatly scolloped and 
curled, with many clefts. Colour greenish, glaucous, or yel- 
