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 fluvio South Esk River Tasmaniae, Aprili 1849, legit Stuart."

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

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

Braun, A.K.H. (1868), Über die australischen Arten der Gattung Isoetes. Monatsberichte der Koniglich Preussischen Akademie der Wissenschaften zu Berlin 1868: 538 [secondary reference]

• Type: "In fluvio South Esk River Tasmaniae cum praecedente et sequente specie l. Stuart 1849 (no. 579)."

Braun, A.K.H. (1868), Über die australischen Arten der Gattung Isoetes. Monatsberichte der Koniglich Preussischen Akademie der Wissenschaften zu Berlin 1868: 538 [replaced synonym]

replaced synonym of: Isoetes hookeri A.Braun 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 humilior (F.Muell. ex 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): 134 [secondary reference]

nomenclatural synonym: Isoetes hookeri A.Braun nom. illeg., nom. superfl. nomenclatural synonym: Calamaria humilior (F.Muell. ex A.Braun) Kuntze legitimate taxonomic synonym: Isoetes stuartii A.Braun legitimate

Willis, J.H. (1962), A Handbook to Plants in Victoria 1: 53 [secondary reference]

Willis, J.H. (1970), A Handbook to Plants in Victoria Edn. 2, 1: 53 [secondary reference]

pro parte misapplication: Isoetes drummondii A.Braun legitimate by Ewart, A.J. (1931), Flora of Victoria: 19 vernacular name: Rock Quillwort [n/a]

Chippendale, G.M. (17 April 1972), Check List of Northern Territory Plants. Proceedings of the Linnean Society of New South Wales 96(4): 216 [secondary reference]

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

Sim, T.R. (1976), Australian ferns and fern allies with notes on their cultivation Edn. 1: 33 [secondary reference]

Chinnock, R.J. & Henshall, T.S. in Jessop, J.P. (ed.) (1981), Pteridophyta. Flora of Central Australia: 6 [misapplied]

misapplied to: Isoetes muelleri A.Braun legitimate by Jones, D.L. & Clemesha, S.C. (1981), Australian ferns and fern allies Edn. 2: 19-20

Jones, D.L. & Clemesha, S.C. (1981), Australian ferns and fern allies Edn. 2: 19-20 [secondary reference]

common name: Rock Quillwort [n/a]

Entwisle, T.J. in Walsh, N.G. & Entwisle, T.J. (ed.) (1994), Ferns and Allied Plants. Flora of Victoria Edn. 1, 2: 26 [misapplied]

misapplied to: Isoetes muelleri A.Braun legitimate by Willis, J.H. (1962), A Handbook to Plants in Victoria 1: 53

Chinnock, R.J. in McCarthy, P.M. (ed.) (1998), Isoetaceae. Flora of Australia 48: 60-61, Map 14 [secondary reference]

• Lectotype: "South Esk River, Tas., Apr. 1849. C.Stuart 579; holo: MEL: iso: B."

nomenclatural synonym: Calamaria humilior (F.Muell. ex A.Braun) Kuntze legitimate taxonomic synonym: Isoetes tasmanica Durieu nom. illeg., nom. superfl. taxonomic synonym: Isoetes hookeri A.Braun nom. illeg., nom. superfl.

• Text: According to M.Garrett (pers comm.) it is unlikely that the type locality cited for this species is correct. All collections, apart from the type, have been made from the Central Plateau region which has no connection with the South Esk River system."

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

misapplied to: Isoetes australis S.Williams legitimate by 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

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): 13 [misapplied]

misapplied to: Isoetes muelleri A.Braun legitimate by Chippendale, G.M. (17 April 1972), Check List of Northern Territory Plants. Proceedings of the Linnean Society of New South Wales 96(4): 216

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

nomenclatural synonym: Isoetes hookeri A.Braun nom. illeg., nom. superfl. nomenclatural synonym: Calamaria humilior (F.Muell. ex A.Braun) Kuntze legitimate taxonomic synonym: Isoetes tasmanica Durieu nom. illeg., nom. superfl. pro parte misapplication: Isoetes lacustris L. legitimate by Rodway, L. (1903), The Tasmanian Flora: 279

• APC Dist.: Tas

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

misapplied to: Isoetes muelleri A.Braun legitimate by Willis, J.H. (1962), A Handbook to Plants in Victoria 1: 53

[misapplied]

misapplied to: Isoetes muelleri A.Braun legitimate by Sim, T.R. (1976), Australian ferns and fern allies with notes on their cultivation Edn. 1: 33

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): 117 [secondary reference]

taxonomic synonym: Isoetes hookeri A.Braun nom. illeg., nom. superfl.

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, Apr. 1849, C.Stuart 579 (lecto: MEL 1002782*; isolecto: B n.v. [not found], designated by R. J. Chinnock in P. M. McCarthy (ed.), Fl. Australia 48: 60 (1998))."

nomenclatural synonym: Isoetes hookeri A.Braun nom. illeg., nom. superfl.

• Text: "Chinnock (1998b, p. 60) cited the type of the name Isoëtes humilior as ‘South Esk River, Tasmania, Apr. 1849, C.Stuart 579; holo: MEL; iso: B’. This is here treated as effective lectotypification by Chinnock, in accordance with ICN Art. 7.11 (Turland et al. 2018). Because Chinnock’s citation meets the relevant requirements of ICN Art. 7.11, his use of the term ‘holo’ is correctable under ICN Art. 9.10."

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