Summary:
Tremella cladoniae produces minute fruitbodies, at first inducing the formation of pinkish brown convex galls on its host, the lichen Cladonia, later forming reddish brown fruitbodies that are subspherical, tuberculate or irregular in form, identified by microscopic characters including asteroconidia. The description is derived from Diederich(1).

Microscopic:
spores 7-10 x 6-8 microns, subspherical, with a distinct apiculus; basidia 2-spored, when mature "with one transverse septum in the upper third or quarter of the basidium, not constricted at the septum", epibasidia 2.5-4 microns thick, at least 30 microns long, cylindric; hymenium colorless, 40-65 microns thick, "containing numerous probasidia, mixed with conidiogenous cells when old", "probasidial initials elongate, claviform, diameter reaching its maximum close to the apex", proliferations occurring through the basal clamp connection; hyphidia and cystidia absent; hyphae of context 1.5-2.5 microns wide, thin-walled, clamp connections not observed; haustorial branches frequent, tremelloid, mother cell subspherical to ellipsoid, 2.5-4 microns wide, haustorial filament 1-5 microns long; anamorph: asteroconidia present in older fruitbodies, 9-11 microns in diam, with 4 arms, each 2.5-5 microns long, conidiogenous cells 21-27 x 1.5-2.5 microns, with several irregular branches 1-4 microns long close to apex

Notes:
It is found in BC, WA, FL, MD, NC, VA, and Colombia, (Diederich(2)), and FL, Denmark, France, Germany, Luxembourg, Romania, Sweden, Switzerland, and Papua New Guinea, (Diederich(1)).