LICHEN velatus.
Veiled Lichen,
CRYPTOGAMIA Alga;.
G en. Char. Male, scattered warts.
Female, smooth shields or tubercles, in which the
seeds are imbedded.
Spec. Char. Crust limited, tartareous, thin, rugged,
greyish, with a pale edge. Shields small, crowded;
the disk yellowish, veiled with a white membrane j
border thick, even, of the substance o f the crust.
Syn. Parmelia velata. Turn. Tr. o f L. Soc. v. 9. 143.
<• 12. f . 1.
COMMUNICATED by Mr. W. Borrer, along with the'
preceding, from Sussex, where it grows, but rarely, upon
ash trees.
It has the crust and general habit of our L. multipunctus,
t. 2061, and surely proves that there can be no generic distinction,
natural nor even artificial, between the two species.
The crust in the present is a little greener; usually perhaps
more uneven. The shields are sessile, numerous, small, with
a thick, but not much elevated, smooth border, originating
from the crust; their diskis flat, of a yellowish or pale salmon
colour, but entirely concealed by a peculiar white membranous
veil which is drawn across it from the border, and
which seems sufficiently to distinguish this species from
several others to which it is otherwise very nearly allied.
This veil, to be understood, requires examination in a recent
or moist state.
2062.
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