Baillon, H.E. (1891), Histoire des Plantes 11: 280 [primary reference]

taxonomic synonym: Achras ralphiana F.Muell. nom. inval., nom. nud.

Dubard, M.M.M. (1912), Les Sapotacées du groupe des Sideroxylinées. Annales du Musée Colonial de Marseille sér. 2, 10: 56 [nomenclatural synonym]

nomenclatural synonym of: Planchonella ralphiana (F.Muell.) Dubard nom. illeg.

Jessup, L.W. (23 August 2019), A taxonomic revision of Sapotaceae for mainland Australia. Austrobaileya 10(3): 337 [taxonomic synonym]

taxonomic synonym of: Pleioluma brownlessiana (F.Muell.) Swenson & Munzinger legitimate

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