It produces dark purple, pustular, gelatinous basidiocarps (fruit bodies) and is parasitic on pyrenomycetous fungi (Diaporthe species) on dead herbaceous stems and wood.

It remained in Tremella until 2015 when molecular research, based on cladistic analysis of DNA sequences, showed that it was only distantly related to this genus and belonged instead to the newly proposed Pseudotremella in the family Bulleraceae.

[2][3] The Latin epithet "moriformis" means "mulberry-shaped", with reference to both the shape and colour of typical fruit bodies.

Microscopically, the basidia are tremelloid (globose to ellipsoid, with vertical or oblique septa), 2 to 4-celled, 15 to 22 by 14 to 20 μm.

[4] The species was described from England and has been reported elsewhere in the United Kingdom and from continental Europe in Belgium,[5] France,[6] Germany,[4] Italy,[7][8] Poland,[9] Portugal,[10] and Spain.