CRYPTOGAMIA Algae.
Gen. Char. Male, scattered warts.
Female, smooth shields or tubercles, in which the
seeds are imbedded.
Spec. Char. Crust continued, tartareous, cracked,
tumid, uneven and granulated, pale brownish grey.
Shields in the interstices, crowded, flattish, black;
at length convex, with a very thin black border.
S y n . Lichen miscellus.' Ach. Prod. 6 2 .
Lecidea miscella. Ach. Meth. 3 9 .
F o u n d by the Rev. Mr. Harriman on whin-stone rocks
near Winch hridge, also in the neighbourhood of Whey-syke,
the milky rivulet, in Teesdale forest, Durham. His specimens
have been sent to Dr. Acharius, and determined as
above; therefore these synonyms must be removed from our
L . escharoides, t. 1247, which is a very different plant, whatever
the' escharoides of Ehrhart may be. His original specimen
is a poor one, but we hesitate to reduce it to the plant
before us,
L. miscellus forms large, uninterrupted, but irregularly
shaped, patches, of a thickish tartareous substance, their surface
very irregularly swelled and cracked, of a pale brownish
grey, scarcely glossy, but not powdery, each fragment verv
convex, and minutely granulated or wrinkled. Shields sunk
between the fragments of the crust, often crowded or aggregate,
deep black but somewhat polished, at first flat orhollow-
ish, then irregularly convex, with a scarcely perceptible, and
extremely narrow, black, wavy edge.
1831
Jan i.&yS Publish'd iy Jaf Scnraby London,.