T R E M E L L A boletiformis.
Brown Rough-backed Tremella.
CRYPTOGAMIA Algce.
Gen. Char. Fructification scarcely perceptible in a
membranous jelly-like substance.
Spec. Char. Nearly sessile, scattered, roundish, depressed,
brown ; smooth and shining above ; rough
and dotted beneath.
W e have been long in doubt concerning this Tremella, which
was found in Sussex by Mr. W . Borrer, and at Starston and
Postwick Norfolk by Mr. W . J . Hooker. It was supposed
to be the T.fungiformis of Roth, in Ann. of Bot. v. 1 . 280;
consequently Peziza gelatinosa of Persoon, Syn. Fung. 633,
and Bulliard t. 4 6 0 ,/ . 2; but we find it so different from that
figure and from many points in all the descriptions, that we
venture to describe it as new.
I t grows scattered, not clustered, each plant being nearly
sessile, irregularly orbicular, depressed, all over of a dull, not
reddish, brown. The upper surface is unequal, but smooth
and polished; the under rough, and as it were dotted, which
roughness, extended to the edge, gives it a crenate aspect.
T.fungiformis is more stalked and reddish, concave at the
top, and smooth on both sides.