Moore, C. (1884), Notes on the genus Macrozamia. Journal and Proceedings of the Royal Society of New South Wales 17: 120 [comb. et stat. nov.]

basionym: Macrozamia spiralis var. secunda Benth. legitimate

• Text: "Near Reedy Creek, east of Mudgee, where it was first found in 1858, but without fruit. Again found with only one old fruiting cone not far from Dubbo, by Rev. J. Milne Curran in 1883, who sent living plants to the Sydney Garden."
• Comment: Moore makes no reference to a basionym but cites the same original material as that used as the basis for Macrozamia spiralis var. secunda, re-uses the epithet, and also provides a description. This is here treated as a new combination under Art. 41.4 (Shenzhen Code, 2018).

Dixon, W.A. (1906), The Plants of New South Wales: 248 [secondary reference]

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

nomenclatural synonym of: Macrozamia spiralis var. secunda (Benth.) Maiden & Betche isonym

Johnson, L.A.S. (1959), The families of cycads and the Zamiaceae of Australia. Proceedings of the Linnean Society of New South Wales 84: 105 [secondary reference]

• Lectotype: "Only the former collection is extant, in herb. MEL, labelled: "Reedy Creek, C.Moore, 1858. I therefore select it as LECTOTYPE."

nomenclatural synonym: Macrozamia spiralis var. secunda Benth. legitimate

Johnson, L.A.S. (1961), Zamiaceae. Contributions from the New South Wales National Herbarium, Flora Series 1: 34-35 [secondary reference]

nomenclatural synonym: Macrozamia spiralis var. secunda Benth. legitimate nomenclatural synonym: Macrozamia spiralis var. secunda (Benth.) Maiden & Betche isonym nomenclatural synonym: Macrozamia tridentata var. secunda (Benth.) J.Schust. legitimate

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

taxonomic synonym: Macrozamia spiralis var. secunda (Benth.) Maiden & Betche isonym pro parte taxonomic synonym: Macrozamia tridentata subsp. cylindrica (C.Moore) J.Schust. legitimate

Harden, G.J. in Harden, G.J. (ed.) (1990), Zamiaceae. Flora of New South Wales 1: 77 [secondary reference]

Jones, D.L. (1993), Cycads Of The World: 256-7 [secondary reference]

Hill, K.D. in McCarthy, P.M. (ed.) (1998), Zamiaceae. Flora of Australia 48: 657-658, Map 604 [secondary reference]

Harden, G.J. & Murray, L.J. in Harden, G.J. & Murray, L.J. (ed.) (2000), Flora of New South Wales Supplement 1: 15 [secondary reference]

Harden, G.J. in Harden, G.J. (ed.) (2000), Zamiaceae. Flora of New South Wales Revised Edition 1: 77 [secondary reference]

Council of Heads of Australasian Herbaria (2006), Australian Plant Census: - APC [secondary reference]

nomenclatural synonym: Macrozamia spiralis var. secunda Benth. legitimate nomenclatural synonym: Macrozamia secunda (Benth.) C.Moore var. secunda legitimate nomenclatural synonym: Macrozamia spiralis var. secunda (Benth.) Maiden & Betche isonym nomenclatural synonym: Macrozamia tridentata var. secunda (Benth.) J.Schust. legitimate

• APC Dist.: NSW

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