SPOROCARPS: scattered, pulvinate 0.1- 0.3 mm tall , and 0.3-1.0 mm0n a broad base, or forming plasmodiocarps 0.4 to 2 mm. or more long, smooth, white; sporangial wall of two layers, the outer a thin eggshell-like crust of densely combined minute crystals of lime, separating from the iridescent membranous inner layer, which is purplish or colorless above, yellowish brown and thickened at the margin.
COLUMELLA: absent or represented by the purplish, thickened calcareous base.
PERIDIUM: double, the outer layer smooth, white, composed of densely aggregated lime crystals, sometimes lacking, the inner layer delicate, purplish or colourless, iridescent.
CAPILLITIUM: rather scanty, consisting of coarse or slender, purple or colorless, flattened threads, usually broad at the base, branching dichotomously, and slender above. Or profuse, of slender, straight, branching threads, not thicker below, dark or colorless.
SPORES: dark purple-brown or purplish gray, faintly and closely warted, sometimes paler on one side. 11-14 µm diam.
PLASMODIUM: colorless or yellow.
HABITAT: On dead leaves, herbaceous stalks, twigs and the dung of herbivorous animals.