Gloeocystidiellum is a single genus of fungi in the monotypic Gloeocystidiellaceae family. Its species form crust-like, smooth fruitbodies. It is probably polyphyletic and may be restricted to the group around the type species G. porosum.
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