Hexagonia sulcata var. durissima (Berk. & Broome) Cleland & Cheel , legitimate, scientific
Cleland, J.B. & Cheel, E. (1917), Notes on Australian fungi, no. IV. Polyporus, Fomes and Hexagona. Journal and proceedings of the Royal Society of New South Wales 51: 551 [comb. nov.]
basionym: Hexagonia durissima Berk. & Broome legitimate
AusFungi (2019), AusFungi 21 Jan. 2019: - [taxonomic synonym]
taxonomic synonym of: Daedalea sulcata (Berk.) Ryvarden legitimate