On decayed Populus trichocarpa wood. Elaters: spiny, 7-9 µm diam. Spores: finely reticulate, averaging 8-10 µm.
Found on bark and moss on fallen Acacia melanoxylon. Crowded and scattered sessile, globose to sub-globose sporangia, 1.2-1.6 mm diameter. Hypothallus inconspicuous, membranous, shiny. Peridium fragile, pink with some marbling, dehiscence irregular. Columella globose with buff-coloured outer layer, white inside. Capillitium dark with white membranous tips. Spores black in mass, dark brown in tl; densely spinulosa, 12-15 microns.