Maiden, J.H. & Betche, E. (1916), A Census of New South Wales Plants: 9 [primary reference]

nomenclatural synonym: Macrozamia secunda (Benth.) C.Moore legitimate isonym: Macrozamia spiralis var. secunda Benth. legitimate

• Comment: Reference to earlier isonym indirect, via Maiden & Betche's inclusion of Macrozamia secunda (Benth.) C.Moore in synonymy of this name.

Johnson, L.A.S. (1959), The families of cycads and the Zamiaceae of Australia. Proceedings of the Linnean Society of New South Wales 84: 115 [secondary reference]

Johnson, L.A.S. (1961), Zamiaceae. Contributions from the New South Wales National Herbarium, Flora Series 1: 35 [nomenclatural synonym]

nomenclatural synonym of: Macrozamia secunda (Benth.) C.Moore legitimate

Jacobs, S.W.L. & Pickard, J. (1981), Plants of New South Wales: 5 [taxonomic synonym]

taxonomic synonym of: Macrozamia secunda (Benth.) C.Moore legitimate

Council of Heads of Australasian Herbaria (2006), Australian Plant Census: - [nomenclatural synonym]

nomenclatural synonym of: Macrozamia secunda (Benth.) C.Moore legitimate

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