Acanthostigma is a genus in the Tubeufiaceae family of fungi. Three new species were reported in 2010, growing from decomposing wood in Great Smoky Mountains National Park in the USA.
Species taxanomy provided by GBIF Secretariat (2022). GBIF Backbone Taxonomy. Checklist dataset https://doi.org/10.15468/39omei accessed via GBIF.org on 2023-06-13; License: CC BY 4.0