Les, D.H. & Crawford, D.J. (1999), Landoltia (Lemnaceae), a new genus of duckweeds. Novon 9: 532-533 [comb. nov.]

nomenclatural synonym: Spirodela punctata (G.Mey.) C.H.Thomps. legitimate taxonomic synonym: Lemna oligorrhiza Kurz legitimate

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

nomenclatural synonym: Lemna punctata G.Mey. legitimate nomenclatural synonym: Spirodela punctata (G.Mey.) C.H.Thomps. legitimate taxonomic synonym: Lemna melanorrhiza F.Muell. ex Kurz legitimate taxonomic synonym: Lemna pleiorrhiza F.Muell. ex Kurz legitimate taxonomic synonym: Lemna oligorrhiza Kurz legitimate taxonomic synonym: Spirodela oligorrhiza var. pusilla Hegelm. legitimate taxonomic synonym: Spirodela oligorrhiza var. pleiorrhiza (F.Muell. ex Kurz) Hegelm. legitimate taxonomic synonym: Spirodela oligorrhiza (Kurz) Hegelm. var. oligorrhiza legitimate taxonomic synonym: Spirodela oligorrhiza (Kurz) Hegelm. legitimate taxonomic synonym: Spirodela oligorrhiza var. melanorrhiza (F.Muell. ex Kurz) Hegelm. legitimate taxonomic synonym: Spirodela melanorrhiza (F.Muell. ex Kurz) Hegelm. legitimate taxonomic synonym: Spirodela pusilla Hegelm. legitimate taxonomic synonym: Spirodela pleiorrhiza (F.Muell. ex Kurz) Hegelm. legitimate

• APC Dist.: WA, SA, Qld, NSW, ACT, Vic

de Salas, M.F. & Baker, M.L. (2016), Tasmanian vascular plant census. A Census of the Vascular Plants of Tasmania, including Macquarie Island: 91, 92 [secondary reference]

doubtful misapplication: Spirodela polyrhiza (L.) Schleid. legitimate by Buchanan, A.M., McGeary-Brown, A. & Orchard, A.E (1989), A Census of the Vascular Plants of Tasmania: 52

Brown, G.K. (December 2021), Appendix A: New names and name and status changes 2020 to 2021. Introduction to the Census of the Queensland Flora 2021: 8 [secondary reference]

taxonomic synonym: Spirodela oligorrhiza (Kurz) Hegelm. legitimate

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