Substrate/Host: on rotting agaric, possibly a Russula Habitat: partly flooded mixed hardwood-conifer forest (eastern hemlock, pine, birch, maple, oak, hickory, sycamore, rhododendron) Ecoregion: Northern Sandstone Ridges (67c) Collector(s): D. Newman Collection_#: MO335190 Comments: see Observation 335189 for the Myrothecium sp. on the same substrate Other: Collected for the 2018 Peck Foray held at the Sieg Conference Center near Lockhaven, Pennsylvania.