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L I C H E N cervicornis.
Buck’s-horn Cup Lichen.
CRYPTOGAMIA Algae.
G en. C har. Male, scattered warts.
Female, smooth shields or tubercles, in which the
seeds are imbedded.
S p e c . C h a r . Cup-shaped, cartilaginous, branched.
Leaves nearly upright, glaucous, in oblong segments.
Cups from the disk of the leaves, turbinate,
at length proliferous, on slender stalks.
Tubercles numerous, marginal, sessile, blackish.
Syn. Lichen cervicornis. Achar. Prod. 184.
Baeomyces cervicornis. Achar. Meth. 336. Winch,
v. 2. 65.
W E gathered fine specimens of this elegant Lichen on the
Pentland hills, near Edinburgh, in 1782. The plant was then
confounded with the alcicornis, t. 1392, from which Acharius
justly distinguished it. The base is sometimes absolutely shrubby;
the whole plant rigid, though, the leaves are brittle when dry;
the oblong form of their crenate segments, and their glaucous
hue, are peculiar, and they very generally assume a brown tinge.
The cups grow abundantly, on slender cylindrical stalks, from
the disks of the leaves, and are distinctly formed, slightly leafy,
more or less proliferous, bordered with numerous, small, sessile,
uniform tubercles, of a dark blackish brown.
This species has been observed by Mr. W. Borrer in various
mountainous parts of England, Scotland, and Ireland, and we
are indebted to him for our specimen here represented, which
agrees with some from Acharius.