498 129. Lithocia, 5. IDIOTHALAMEM. Pl. cell, aph. 
5. Lithocia maura. Blackmoor stone-moss. 
Crust tartarlike, thin, smooth, very much cracked, very 
deep black ; apothecia minute, nearly. ¢ globular, immersed ; 
tip umbilicated, prominent; nzcleus blackish. 
Verrucaria maura, Achar. Meth. Suppl. 193 Lich, 291. 
Lichen maurus, Engl. Bot. 2456. 
On rocks and stones near the seaside. 2 
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, horicxede nucleus dots 
like, transparent. 
Verrucaria striatula, Achar. Meth. Suppl. 21; Lich. 293. 
B. acrotella Beds of the crust dispersed, irregular, 
blackish-brown. 
Verrucaria acrotella, Achar. Meth. 123. 
Lichen acrotellus, Engl. Bot. 1712. 
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, i thiek, 
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. 
Spheria epigea, Persoon Syn. Fung. App. 27. 
Verrucaria epigea, Achar, Meth. 123; Lich. 295, 
On muddy ground. 
2. Inoderma byssacea. _ Byssus tow-moss. 
Thallus rather leprous, cobwebby, dirty white; apothecia 
very small, nearly globular, half-sunk, pierced, inside 
black. 
Spheria byssacea, Persoon Syn. Fung. Hon 32. 
Verrucaria byssacea, Achar. Meth. 116; Lich. 294. 
On the trunks of trees. 
