World Register of Marine Species (WoRMS)
Index Fungorum Partnership (2026). Index Fungorum. Arrhenia spathulata (Fr.) Redhead, 1984. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=426169 on 2026-08-30
Fries, E.M. (1828). Elenchus Fungorum, sistens Commentarium in Systema Mycologicum. 1: 1–238.