498 129. Lithocia. 5. IDIOTHALAMEiE. Pl.cell.aph. 
5. Lithocia maura . Blackmoor stone-moss . 
Orzz?/ tartarlike, thin, smooth, very much cracked, very 
deep black ; apothecia minute, nearly globular, immersed ; 
tip umbilicated, prominent ; nucleus blackish. 
Verrucaria maura, Achar. Meth. Suppl. 19 ; Lich , 291. 
Lichen maurus, Engl. Bot. 2456. 
On rocks and stones near the seaside. 
6. Lithocia striatula. Fine-streaked stone-moss . 
Crust figured, shrublike, bordered with greenish-black, 
beds rather separate, branched, radiating; apothecia conoid, 
afterwards slightly concave above, bordered ; nucleus dot- 
like, transparent. 
Verrucaria striatula, Achar. Meth. Suppl. 21 ; Lich. 293. 
/ 3 . acrotella Beds of the crust dispersed, irregular, 
blackish-brown. 
Verrucaria acrotella, Achar. Meth. 123. 
Lichen acrotellus, Engl. Bot. IT 12. 
Verrucaria striatula acrotella, Achar. Lich. 293. 
On flint-stones. 
IX. 130. INODERMA. Acharius. Tow-moss. 
Thallus soft, towlike, rather spongy, or thin cobwebby, 
adnate; apothecia containing a nearly globular or hemi- 
spherical thalamium, innate at bottom in the thallus; peri- 
thecium double, the external rather cartilaginous, thick, 
black, halved above, with a nipple or mouth ; the interior 
very thin, membranaceous ; including all around a nearly 
globular, vesicular, cellular nucleus. 
1. Inoderma epigea. Above-ground tow-moss . 
Thallus thin, nearly fibrous, uneven, pale yellowish ; 
apothecia very small, globular, sunk; mouth prominent, 
inside black. 
Sphaeria epigea, Persoon Syn. Fung. App. 27. 
Verrucaria epigea, Achar. Meth. 123; Lich. 295. 
On muddy ground. 
2. Inoderma lyssacea . Byssus tow-moss. 
Thallus rather leprous, cobwebby, dirty white ; apothecia 
very small, nearly globular, half-sunk, pierced, inside 
black. 
Sphaeria byssacea, Persoon Syn. Fung. App . 32. 
Verrucaria byssacea, Achar. Meth. 116; Lich . 294. 
On the trunks of trees. 
