It produces orange to red, lobate to foliaceous, gelatinous basidiocarps (fruit bodies) and is parasitic on other fungi on wood of broad-leaved trees.

Tremella erythrina was first published in 2019 by Chinese mycologists Xin-Zhan Liu and Feng-Yan Bai based on collections made in Guangxi Province, China.

[1] Fruit bodies are gelatinous, red to brownish orange, up to 18 mm across, cerebriform (brain-like) to foliaceous, with undulating, hollow lobes.

Microscopically, the basidia are tremelloid (globose to broadly ellipsoid, with oblique to vertical septa), 4-celled, 12 to 18 by 13 to 19 μm.

Tremella samoensis, described from Samoa, and T. flammea, described from Japan, are also similar in colour, but differ microscopically.