Braun, A.K.H. (December 1853), Plantae Muellerianae. Isoeteae. Linnaea: ein Journal für die Botanik in ihrem ganzen Umfange, oder Beiträge zur Pflanzenkunde 25(6): 722 [tax. nov.]

• Type: "In Tasmania legit Stuart."

Durieu de Maisonneuve, M.C. (1864), Bulletin de la Société Botanique de France 11: 104 [taxonomic synonym]

taxonomic synonym of: Isoetes tasmanica Durieu nom. illeg., nom. superfl.

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 elatior (A.Braun) Kuntze legitimate

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

taxonomic synonym of: Isoetes lacustris L. legitimate

Pfeiffer, N.E. (April 1922), Monograph of the Isoetaceae. Annals of the Missouri Botanical Garden 9(2): 126-127 [secondary reference]

nomenclatural synonym: Isoetes tasmanica Durieu nom. illeg., nom. superfl. nomenclatural synonym: Calamaria elatior (A.Braun) Kuntze 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: 65, Fig. 40G-I, Map 24 [secondary reference]

• Lectotype: "South Esk River, Tas., ?Dec. 1848, C.Stuart 461; lecto: MEL 1002781, fide C.R.Marsden, Morphology & Taxonomy of Isoetes, Ph.D. thesis, University of Adelaide 105 (1979); isolecto: MEL 31642."

• 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).

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

nomenclatural synonym: Calamaria elatior (A.Braun) Kuntze legitimate pro parte misapplication: Isoetes lacustris L. legitimate by Rodway, L. (1903), The Tasmanian Flora: 279

• 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): 112 [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: "South Esk River, Tasmania, 1848, C.Stuart 461 (lecto: MEL 1002781*; isolecto: MEL 31642*, designated by R. J. Chinnock in P. M. McCarthy (ed.), Fl. Australia 48: 65 (1998))."

• Text: "Chinnock (1998b, p. 65) cited the type of the name Isoëtes elatior as ‘South Esk River, Tas., ?Dec. 1848, C.Stuart 461; lecto: MEL 1002781, fide C. R. Marsden, Morphology & Taxonomy of Isoetes, PhD thesis, University of Adelaide 105 (1979); isolecto: MEL 31642’. Because Marsden’s thesis was not effectively published under ICN Art. 30.9, this citation is here treated as effective lectotypification by Chinnock (1998b), in accordance with ICN Art. 7.11 (Turland et al. 2018)."

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