Homotypic synonym according to GBIF classification (Originally found in sources as synonym of Heteroscyphus argutus var. brevidens (Schiffner) Schiffner)
Heteroscyphus argutus var. brevidens (Schiffner) Schiffner
Homotypic synonym according to GBIF classification (Originally found in sources as accepted taxon within Heteroscyphus argutus (Reinw., Blume & Nees) Schiffn.)