The English flora - SeaweedAfrica

—
Endocarpon.] LiCHENES. 155
26. V. niyrescens, Pers. (dark-stained Rock Verrucaria');
crust of a deep olive-black solid most minutely cracked, apothecia
of the same colour half-immersed slightly convex with a
central pore. Sni.-^—Pers. in Ust. Ann. 14.^.56 Pyrenula
nigrescens, Ach. Syn. p. 126 Verrucaria umbrina, Ach, Jlelh.
p. 122.
Common on shady rocks and stone walls, even about houses.
—
Lichen umbrinus, Ach. Prodr.—E. Pot. t. 1499.
27. V. stridtula, Ach. (sharp-tubercled Bock Verrucaria);
crust defined dendritic greenish-black limited with the areola?
somewhat separated imperfectly branched radiating, apothecia
cone-shaped at length slightly concave and margined at the extremity,
the nucleus punctiform and transparent. Ach. Syn.
p. 95. (3. acrotella ; crust scarcely any, apothecia minute
scattered somewhat confluent black unequal convex
umbilicated. Sm.— V. acrotella, Ach. Meth. p. 123.
pointed
Lichen
acrotellus, E. Bot. t. 1712.
(•>. On flint-stones, Sussex, Mr. Borrer.
*** Growing on earth or decayed mosses. Terricohe.
28. V. Hooheri, Borr. (Hookerian Ground Verrucaria); crust
thick of pure white tumid tartareous scales covering a black
spongy substance, apothecia ampulliform black immersed except
the conical or truncated apex. Borr. in E. Bot. Suppl.
t. 2622./. 2.
On dead mosses, on the micaceous soil of Ben Lawers, in the hollow
Dear the summit where Saxifraga cernua grows, Mr. Borrer. Also in
similar situations on Maelgreadha and the other Breadalbane mountains,
not unt'rcquentlv growing on the bare soil composed of comminuted
schist.— This, Mr. Borrer observes, " is very unlike any other Verrucaria
with which we are acquainted, both in its tliaUu* duAfnu/i/icafi n. The
thick, turgid, somewhat lobed, tartareous scales are similar in figure to
those of Lichen fntsttdosus, E. But- 1. 2273, but of a much smaller size :
their internal substance is green."
•_".>. V. epigda, Ach. (greenish Ground Lichm ); crust pale
yellowish-green or grey somewhat fibrillose slimy when moist,
apothecia minute globose immersed black within and with a
minute point. Ach. Syn. />. 96. Schcer. Licit. IHe. p. .">.
//. Mm;—Sphceria epigcea, Pers. Syn. Fung* App. />. 27.
Lichen terrains, E. Bot. t. 1681.
On dry barren lank-, mar Norwich, Rev. G. A". Leatkes.
. Endo< Irpon. //