Braun, A.K.H. (1868), Über die australischen Arten der Gattung Isoetes. Monatsberichte der Koniglich Preussischen Akademie der Wissenschaften zu Berlin 1868: 535 [tax. nov.]

• Type: "In lacibus montanis Tasmaniae, fundum longe lateque obcundens. R. Gunn 1841 (no. 1563)."

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

Kuntze, C.E.O. (5 November 1891), Revisio Generum Plantarum 2: 828 [basionym]

basionym of: Calamaria gunnii (A.Braun) Kuntze legitimate

Rodway, L. (1903), The Tasmanian Flora: 279 [taxonomic synonym]

taxonomic synonym of: Isoetes lacustris L. legitimate

Aston, H.I. (1973), Aquatic Plants of Australia: 34 [secondary reference]

Chinnock, R.J. in McCarthy, P.M. (ed.) (1998), Isoetaceae. Flora of Australia 48: 57-58, Fig. 40M-O, Map 9 [secondary reference]

• Lectotype: "Lake St. Clair, Tas., 7 Jan. 1841, R.C.Gunn; lecto: K, fide C.R.Marsden, Morphology & Taxonomy of Isoetes, Ph.D. thesis, University of Adelaide 105 (1979); isolecto: B, NSW."

nomenclatural synonym: Calamaria gunnii (A.Braun) Kuntze legitimate

• Comment: Although Chinnock attributes lectotypification of this name to C.R.Marsden, the thesis in which the designation first appeared was not effectively published under ICN Art. 30.9 (Shenzhen Code, 2018). Chinnock's designation is here considered to constitute effective lectotypification under ICN Art. 7.11 (Shenzhen Code, 2018).

Tindale, M.D. & Roy, S.K. (23 December 2002), A cytotaxonomic survey of the Pteridophyta of Australia. Australian Systematic Botany 15(6): 844 [secondary reference]

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

nomenclatural synonym: Calamaria gunnii (A.Braun) Kuntze legitimate pro parte taxonomic synonym: Isoetes lacustris L. legitimate

• APC Dist.: Tas

Troia, A., Pereira, J.B., Kim, C. & Taylor, W.C. (2016), The genus Isoetes (Isoetaceae): a provisional checklist of the accepted and unresolved taxa. Phytotaxa 277(2): 115 [secondary reference]

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): 10 [secondary reference]

• Type: "Lake St Clair, Tasmania, 7 Jan. 1841, R.C.Gunn s.n. (lecto: K001094256*; isolecto:B200107578c ! [on a mixed sheet],HO 1616!"

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