Brown, R. (27 March 1810), Prodromus florae Novae Hollandiae et insulae Van-Diemen, exhibens characteres plantarum quas annis 1802-1805: 167 [tax. nov.]

• Type: "(J.D.) v.v."

Brown, R. in Flinders, M. (1814), General remarks, geographical and systematical, on the Botany of Terra Australis. A Voyage to Terra Australis 2, Appendix III: 611 [secondary reference]

• Type: "In lakes and ponds, frequent within the limits of the colony of Port Jackson."

Mueller, F.J.H. von (20 October 1853), First general report of the Government Botanist on the vegetation of the colony. Victoria - Parliamentary Papers- Votes and Proceedings of the Legislative Assembly: 22 [secondary reference]

Mueller, F.J.H. von (1882), Systematic Census of Australian Plants: 136 [secondary reference]

Dixon, W.A. (1906), The Plants of New South Wales: 279 [secondary reference]

Bailey, F.M. (1913), Comprehensive Catalogue of Queensland Plants: 635 [secondary reference]

Domin, K. (January 1915), Beitrage zur Flora und Pflanzengeographie Australiens. Bibliotheca Botanica 20(85): 214 [secondary reference]

Black, J.M. (1922), Cyatheaceae - Orchidaceae. Flora of South Australia 1: 43 [secondary reference]

Black, J.M. (1943), Flora of South Australia Edn. 2, 1: 42 [secondary reference]

Tindale, M.D. in Specht, R.L. & Mountford, C.P. (ed.) (1958), The Pteridophyta of Arnhem Land. Records of the American-Australian Scientific Expedition to Arnhem Land No. 3 Botany and Plant Ecology: 171, 184 [secondary reference]

Beadle, N.C.W., Evans, O.D. & Carolin, R.C. (1962), Handbook of the Vascular Plants of the Sydney District and Blue Mountains: 81 [secondary reference]

Willis, J.H. (1970), A Handbook to Plants in Victoria Edn. 2, 1: 48 [secondary reference]

vernacular name: Ferny Azolla [n/a]

Sweet, A. & Hills, L.V. (1971), American Fern Journal 61: 1-13 [secondary reference]

Chippendale, G.M. (17 April 1972), Check List of Northern Territory Plants. Proceedings of the Linnean Society of New South Wales 96(4): 218 [secondary reference]

Aston, H.I. (1973), Aquatic Plants of Australia: 32-33 [secondary reference]

Williams, K.A.W. (1980), Native Plants of Queensland Edn. 2, 1: 24 [secondary reference]

common name: Ferny azolla [n/a]

Dunlop, C.R. (1987), Checklist of the Vascular Plants of the Northern Territory. Technical Report: Conservation Commission of the Northern Territory 26: 1 [secondary reference]

Wilson, Peter G. in Harden, G.J. (ed.) (1990), Azollaceae. Flora of New South Wales 1: 72, Plate 5 [secondary reference]

Entwisle, T.J. in Walsh, N.G. & Entwisle, T.J. (ed.) (1994), Ferns and Allied Plants. Flora of Victoria Edn. 1, 2: 110-111, Fig. 23c-d [secondary reference]

common name: Ferny Azolla [n/a]

Chinnock, R.J. in McCarthy, P.M. (ed.) (1998), Azollaceae. Flora of Australia 48: 176-177, Fig 57, Map 148 APC [secondary reference]

common name: Azolla [n/a] common name: Ferny Azolla [n/a]

• APC Dist.: WA, NT, SA, Qld, NSW, NI (naturalised), Vic

Harden, G.J. & Murray, L.J. in Harden, G.J. & Murray, L.J. (ed.) (2000), Flora of New South Wales Supplement 1: 11 [secondary reference]

Short, P.S. in Cowie, I.D., Short, P.S. & Osterkamp Madsen, M. (2000), Algae:Fern Allies. Floodplain Flora. A flora of the coastal floodplains of the Northern Territory, Australia: 49, Pl. 3, Fig. 8 [secondary reference]

Wilson, Peter G. in Harden, G.J. (ed.) (2000), Azollaceae. Flora of New South Wales Revised Edition 1: 72, Plate 5 [secondary reference]

Tindale, M.D. & Roy, S.K. (23 December 2002), A cytotaxonomic survey of the Pteridophyta of Australia. Australian Systematic Botany 15(6): 861 [secondary reference]

Short, P., Dixon, D. & Osterkamp Madsen, M. (2003), A review of the ferns and fern allies of the Northern Territory. The Beagle, Records of the Museums and Art Galleries of the Northern Territory 19(3): 30, Fig. 7M-P, map [secondary reference]

de Lange, P.J., Gardner, R.O., Sykes, W.R., Crowcroft, G.M., Cameron, E.K., Stalker, F., Christian, M.L. & Braggins, J.E. (2005), Vascular flora of Norfolk Island: some additions and taxonomic notes. New Zealand Journal of Botany 43: 575 [secondary reference]

Brownsey, P.J. & Perrie, L.R. (2014), Taxonomic notes on the New Zealand flora: lectotypes in Marsileaceae and Salviniaceae (water ferns). New Zealand Journal of Botany 52(2): 270 [secondary reference]

• Lectotype: "(chosen here). Paterson’s River [New South Wales], R. Brown Iter Austral. No. 135, Oct. 1804, British Museum (BM)! (photo WELT E463/15)."

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): 31 [secondary reference]

• Lectotype: "Patersons River, R.Brown Iter Austral. 135 (lecto: BM 001048353*; isolecto: K 001092614*"

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