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LICHEN upsaliensis.
Upsal Lichen.
CRYPTOGAMIA Alg<e.
Gen. Char. Male, scattered warts.
Female, smooth shields or tubercles, in which the
seeds are imbedded.
Spec. Char. Crust thin, polished, glaucous-white,
bearing slender awl-shaped bristles. Shields flat,
pale, with a thick smooth border.
Syn. Lichen upsaliensis. Linn. Sp. PI. 1609. Ach.
Prod. 37* Ehrh. Phytoph. n. 20. Dicks. Crypt,
fuse. 1 . 1 2 . t. 2. f . 7. With, v. 4. 24. Bull. 292.
Patellaria upsaliensis. Hoffm, PI. Lick. v. 1 . 95.
t, 2 1 . ƒ. 2 .
Parmelia parella y. Ach. Meth. 165,
F IRST found in Britain by the late Rev. H. Bryant, (commemorated
in the Trans, of Linn. Soc. v. J. 297), who observed
it on some barren sandy heaths a few miles north of
Norwich about the year 1782. Last winter it was gathered
near Sprowston, in the same neighbourhood, by Mr. Turner
and the Rev. G. R. Leathes, to the latter of whom we are
obliged for specimens.
The crust is very thin, rugged but polished, of a blueish
or glaucous white, running over the turfy earth, and investing
mosses, leaves of grass, or fragments of decayed plants, in
its course. Its greatest singularity consists in the fine slender
bristles which it here and there produces, which are in our
opinion, and Mr. Turner agrees with us, essential to this species,
and quite distinct from those prominences merely caused
by leaves of mosses &c. invested with the crust. These last,
being confounded with the genuine bristles of the plant, have
perhaps induced the learned Dr, Acharius to consider it as
only a variety of L. Perellus, t. 727. The shields are sessile,
with a thick smooth border of the colour of the crust; their
disk flat, pale buff) redder within, They are but sparingly
produced in this country.
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