Observations by tyson_ehlers

On Populus tremuloides bark in seepage area, mostly mouldy with fungal infection. Sporocarps: ovoid or subglobose, sessile to very short stalked, densely clustered, 0.4-0.8 mm diam., pinkish-brown to copper-coloured, shining. Peridium: thin, metallic, somewhat persistent at sides, splitting into lobes, papillose on inside, with age dehiscing completely and leaving a shallow calyculus with a pronounced edge. Stalk: filled with round cells. Capillitium: remaining intact as a compact spherical mass of threads and spores in the shallow calyculus; threads scanty, fragile, loose, 2.5-5.2 µm diam., with bulbous expansions along length and at ends, ornamented with spines, and low cogs/rings. Spores: (6.1)6.4-7.1(7.6) µm, pinkish in mass.

On burned Populus tremuloides bark in a wet seepage area. Lime nodes small, rounded globose to elongated. Spores: (10.3)10.4-12.3(12.7) µm (with ornamentation), dark brown, polygonal with distinctive elevated pale ridges forming a wide-meshed network, unevenly spinose.

On leaves of Populus tremuloides. Sporocarps short-stalked and with a star-like dehiscence. Capillitium: 1-3 µm, dense, slightly anastomosed, dark brown, with irregular swellings and dark nodules. Spores: (11.4)12.0-13.2(14.0) µm, dark brown, paler on one side, densely and evenly spinulose.