[ 2502 ]
CRYPTOGAMIA Algos.
G e n . C h a r . Receptacles capitate, stalked, totally different
in substance and colour from the crust, with
a border of their own substance; disk powdery.
S p e c . C h a r . Crust thin, tartareous, somewhat granulated,
of a verdigrise grey. Receptacles on slender
black stalks, black, hemispherical, with a convex
brownish-black disk.
F o u n d by Mr. W. Borrer, on old boards at Cuckfield, Sussex^
and communicated to us by Mr. Turner, with the above name,,
the species being as yet nondescript.
The crust is thin, but more continuous and determined than
in some other species, though regularly granulated; white within;
externally of a light verdigrise or glaucous grey; occasionally
almost white, perhaps from the bleaching effects of air or light, as
in Lichen ventosus, t. 906. The Tubercles are not very copious
in our specimen. Each stands on a slender, black, shining, curved
stalk, and is hemispherical or cup-shaped, of the colour of the
stalk. The powdery disk is remarkably convex or hemispherical,
of a light or brownish black.