156 NEW LICHENS. 
3. E. speireum, Tayl.; thallo aggregato, cartilagineo, peltato, 
rotundato, undulato, sublobato, demum convexo, margine 
albido, integro, obscure carneo, levi, subtus concolori, la- 
nuginoso ; apotheciis submarginalibus, globosis, atris, basi 
subimmersis. 
Has. On the ground; Bushman'scountry, Capeof Good Hope; 
Zeyher, Hook. herb.—Thallus nearly three lines in diameter ; 
when dry concave; tumid and flesh-coloured when moist- 
ened. A vertical section shews beneath a pruinose surface à 
brick-coloured layer, supported on a shallower one of a 
green parenchymatous substance resting on a white cuti- 
cular substratum. The apothecia depart from the generic 
character of Acharius, by being without pores and scarcely 
immersed; they consist of a dense blackish perithecium 
containing a hollow semitransparent, brown nucleus, whose 
. centre is filled with opaque whitish matter. The roots are 
remarkable, being often four lines long, whitish, the main 
ones thick and acuminate, densely covered with branched, 
excessively fine colourless fibrils. It is somewhat allied. 
to the following. It is perhaps Lichen incarnatus, Thun- 
berg, which Acharius makes Psora decipiens, Hoffm. v. 
4. E. crenatum, Tayl.; thallo aggregato, rotundato, cartila- - 
gineo, convexiusculo, peltato, rufescenti-carneo, pruinoso, - 
margine albido, crenato, subtus concolori; apotheciis * 
marginalibus, confertis, JUN semi-immersis, pie 
_carneis. 
uro Is near the Satyan of the g 
Der us ae flattish, me mm a | 
x 2 _ reddish-brown : Y e H : i ranspa -— 
Eo resting on a red shallow. layer, the entire sup 
Ls by the cuticular portion, Roots as in the ecedin; 
| À ir Fu the border o the 
