Bailey, F.M. (1898), Botany. Contributions to the Flora of Queensland. Queensland Agricultural Journal 2(2): 129 [tax. nov.]

• Type: "Somerset, Cape York Peninsula, Frank L. Jardine."

Bailey, F.M. (1909), Botany. Contributions to the Flora of Queensland. Queensland Agricultural Journal 23(1): 35 [taxonomic synonym]

taxonomic synonym of: Gulubia costata (Becc.) Becc. legitimate

Bailey, F.M. (1913), Comprehensive Catalogue of Queensland Plants: 573 [taxonomic synonym]

taxonomic synonym of: Gulubia costata (Becc.) Becc. legitimate

Burret, K.E.M. (1937), Notizblatt des Botanischen Gartens und Museums zu Berlin-Dahlem: 487 [secondary reference]

Baker, W.J. & Loo, A.H.B. (2004), A synopsis of the genus Hydriastele (Arecaceae). Kew Bulletin 59: 64 [secondary reference]

taxonomic synonym: Kentia costata Becc. legitimate taxonomic synonym: Gulubia costata (Becc.) Becc. legitimate taxonomic synonym: Gulubia costata var. gracilior Burret legitimate

Council of Heads of Australasian Herbaria (2007), Australian Plant Census: - APC [secondary reference]

taxonomic synonym: Kentia costata Becc. legitimate taxonomic synonym: Gulubia costata (Becc.) Becc. legitimate taxonomic synonym: Gulubia costata var. gracilior Burret legitimate taxonomic synonym: Gulubia costata (Becc.) Becc. var. costata legitimate taxonomic synonym: Gulubia costata A.D.Chapm. nom. inval.

• APC Comment: Treated as Gulubia costata in Qld. Chapman, APNI 1494 (1991) listed a non existent "Gulubia costata (Bailey) Becc.", based on a misinterpretation of Beccari's acknowledgement that Bailey and Beccari had inadvertently used the same epithet (costata) for the same species, based on different types, and placed in different genera (see W.J. Baker & A.H.B. Loo, Kew Bulletin 59: 64 (2004) for discussion).
• APC Dist.: Qld

Dowe, J.L. & Jones, D.L. in Wilson, A.J.G. (ed.) (2011), Arecaceae. Flora of Australia 39: 206, Fig. 42K-O [secondary reference]

taxonomic synonym: Kentia costata Becc. legitimate taxonomic synonym: Gulubia costata (Becc.) Becc. legitimate common name: Gulubia Palm [n/a]

Petoe, P., Heatubun, C.D. & Baker, W.J. (2018), A monograph of Hydriastele (Areceae, Arecaceae) in New Guinea and Australia. Phytotaxa 370(1): 76-81, Figs 49, 50, 51(map) [secondary reference]

taxonomic synonym: Kentia costata Becc. legitimate taxonomic synonym: Gulubia costata (Becc.) Becc. legitimate taxonomic synonym: Gulubia costata var. gracilior Burret legitimate

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