Fig.2.
2607. (Pig. 1.)
V E R R U C A R I A nitida.
W ax-like Verrucaria.
CRYPTOGAMIA Lichenes.
Gen. Char. Tubercles of a different nature from the
thallus, simple,, convex, not expanding, but furnished
with a central pore, and inclosing a somewhat
gelatinous nucleus.
Spec. Char. Crust determinate, somewhat tartareous,
continuous, smooth, waxy brown, marked with
minute pale dots, and swelling about the tubercles.
Tubercles rather large, hemispherical,
black, immersed ; at length partially exposed.
Syn. Verrucaria nitida. Schrad. in Schrad. Journ.
A. D. 1801. fasc. 1. 79. Ach. Meth. 121. Lich.
Univ. 279. DeCand. FI. Fr. v. 2.316. Purton.
v. 3. 160. Grev. Edin. 352.
Pyrenula nitida. Ach. Syn. 125.
Lichen populneus. Ach. Prod. 17.
Sphmria nitida. Weigel Obs. 45. t. 2 f . 14. Dicks,
fasc. 1. 23. With. v. 4. 293. Sowerby Engl.
Fungi, v. 3. t. 275.
A VERY distinct species, not uncommon on smooth
bark, particularly on that of young ash-trees.
The perfectly continuous, thin, but slightly tartareous
crust spreads 2 or 3 inches, when uninterrupted, with an
oblong outline, and without any remarkable border : but
very frequently many plants are crowded together in
an extensive map-like patch, in which the limits of each
individual are marked by a black or brown line. The surface
is seldom polished, but of a remarkable oily or waxlike
appearance, constantly sprinkled more or less abundantly
with minute pale dots. Its colour is a darker or