Acer macrophyllum
The species was described scientifically in 1996 by American mycologists Tom Volk and Harold Burdsall. Although the existence of the species as a distinct taxon was known for several years before that, it took several years to collect sufficient specimens and determine an appropriate type collection. The original published description is based on collections found growing on the fallen trunk of "Acer macrophyllum" in Olympic National Park, Washington, in October 1993. The specific epithet "nabsnona" is derived from an acronym of "North American Biological Specimen" and "nona" (ninth).