Hill, K.D. (8 December 1994), The Cycas rumphii Complex (Cycadaceae) in New Guinea and the Western Pacific. Australian Systematic Botany 7(6): 553, figs 9, 7 (map) [tax. nov.]

• Type: Indonesia: Irian Jaya: Babrongko, S. coast of Lake Sentani, G. Iwanggin BW 5245, 4 Apr. 1957 (holo: CANB, iso: BRI, LAE, L).

Laubenfels, D.J. de & Adema, F. (1998), A taxonomic revision of the genera Cycas and Epicycas gen.nov. (Cycadaceae). Blumea 43(2): 370 [taxonomic synonym]

taxonomic synonym of: Cycas scratchleyana F.Muell. legitimate

Lindstrom, A.J., Hill, K.D. & Stanberg, L.C. (26 October 2009), The genus Cycas (Cycadaceae) in Indonesia. Telopea 12(3): 390-392, Fig. 1 [secondary reference]

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