Hovenkamp, P. (1998), An account of the Malay-Pacific species of Slliguea (Polypodiaceae). Blumea 43(1): 61, Fig. 25 [comb. nov.]

basionym: Polypodium simplicissimum F.Muell. legitimate nomenclatural synonym: Crypsinus simplicissimus (F.Muell.) S.B.Andrews legitimate nomenclatural synonym: Phymatopteris simplicissima (F.Muell.) Pic.Serm. legitimate taxonomic synonym: Polypodium simplicissimum var. wurunuran Domin legitimate

Council of Heads of Australasian Herbaria (2010), Australian Plant Census: - [nomenclatural synonym]

nomenclatural synonym of: Crypsinus simplicissimus (F.Muell.) S.B.Andrews legitimate

Field, A.R. (2 January 2020), Classification and typification of Australian lycophytes and ferns based on Pteridophyte Phylogeny Group classification PPG I. Australian Systematic Botany 33(1): 85 [secondary reference]

nomenclatural synonym: Polypodium simplicissimum F.Muell. legitimate nomenclatural synonym: Crypsinus simplicissimus (F.Muell.) S.B.Andrews legitimate

Brown, G.K. & Bostock, P.D. (December 2020), Appendix A: New names and name and status changes 2019 to 2020. Introduction to the Census of the Queensland Flora 2020: 8 [secondary reference]

nomenclatural synonym: Crypsinus simplicissimus (F.Muell.) S.B.Andrews legitimate

Council of Heads of Australasian Herbaria (7 July 2021), Australian Plant Census: - APC [secondary reference]

nomenclatural synonym: Polypodium simplicissimum F.Muell. legitimate nomenclatural synonym: Polypodium simplicissimum F.Muell. var. simplicissimum legitimate nomenclatural synonym: Crypsinus simplicissimus (F.Muell.) S.B.Andrews legitimate nomenclatural synonym: Phymatopteris simplicissima (F.Muell.) Pic.Serm. legitimate taxonomic synonym: Pleopeltis lanceola Mett. ex F.M.Bailey legitimate taxonomic synonym: Polypodium simplicissimum var. normale Domin nom. inval. taxonomic synonym: Polypodium simplicissimum var. wurunuran Domin legitimate misapplication: Polypodium lanceola Mett. legitimate by Mueller, F.J.H. von (1870), Fragmenta Phytographiae Australiae 7(55): 120

• APC Dist.: Qld

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