Johnson, L.A.S. & Briggs, B.G. (1975), On the Proteaceae - the evolution and classification of a southern family. Botanical Journal of the Linnean Society 70(2): 176 [tax. nov.]

• Type: Floydia praealta (F.Muell.) L.Johnson & B.Briggs

Jacobs, S.W.L. & Pickard, J. (1981), Plants of New South Wales: 178 [secondary reference]

Ross, E.M. in Stanley, T.D. & Ross, E.M. (1986), Proteaceae. Flora of South-eastern Queensland 2: 16 [secondary reference]

Wrigley, J.W. & Fagg, M. (1989), Banksias, Waratahs & Grevilleas and all other plants in the Australian Proteaceae family: 186 [secondary reference]

• Etymology: "Named after Alexander G. Floyd, Research Scientist with the NSW National Parks and Wildlife Service and formerly of the Forestry Commission in that state. He is currently based in Coffs Harbour, NSW and has carried out extensive field research on NSW rainforest trees."

Harden, G.J. in Harden, G.J. (ed.) (1991), Floydia. Flora of New South Wales 2: 65 [secondary reference]

Foreman, D.B. in McCarthy, P.M. (ed.) (1995), Floydia. Flora of Australia 16: 417 APC [secondary reference]

• APC Dist.: Qld, NSW

Harden, G.J. in Harden, G.J. (ed.) (2002), Floydia. Flora of New South Wales Revised Edition 2: 79 [secondary reference]

Weston, P.H. & Barker, N.P. (13 November 2006), A new suprageneric classification of the Proteaceae, with an annotated checklist of genera. Telopea 11(3): 335 [secondary reference]

Weston, P.H. in Kubitzki, K. (ed.) (2007), Proteaceae. The Families and Genera of Vascular Plants 9: 394 [secondary reference]

Mabberley, D.J. (1 May 2008), Mabberley's Plant-Book Edn. 3: 341 [secondary reference]

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