[2] The species was originally named Mycena praeclara by Egon Horak in 1978.

[3] The cap is up to 8 mm (0.3 in) wide, hemispherical or convex when young becoming umbilicate or applanate with age.

The cap center is granular, dry, with indistinct grooves extending towards the margin.

Fruit bodies grow singly, not in dense groups or clusters.

[3] The fruit bodies of R. praeclarus grow on rotting leaves and twigs in rain forests of Papua New Guinea.