Taxon Name Usage: https://staging-id.biodiversity.org.au/instance/apni/659533
- taxonomic synonym: Phyllanthus lacunarius var. deuterocalyx Gauba
- misapplied: Phyllanthus lacunarius auct. non F.Muell. by Kalotas, A. in Jessop, J.P. (ed.) (1981), Phyllanthus. Flora of Central Australia
- misapplied: Phyllanthus lacunellus auct. non Airy Shaw by Airy Shaw, H.K. (1980), Notes on Euphorbiaceae from Indomalesia, Australia and the Pacific. Kew Bulletin 35(2)