Isoetes aequinoctialis

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Taxonavigation: Isoetales 

Superregnum: Eukaryota
Regnum: Plantae
Divisio: Tracheophyta
Divisio: Lycopodiophyta
Classis: Isoetopsida
Ordo: Isoetales

Familia: Isoetaceae
Genus: Isoetes
Species: Isoetes aequinoctialis


Isoetes aequinoctialis Welw. ex A.Braun in Kuhn, Fil. Afr. 195. 1868.

  • Typus: ‘Angola. In pascuis arenosis humidiusculis silvaticis inter Pungo Andogo et Sansamanda non procul a ripa fluminis Cuanza, 1857’, F.M.J. Welwitsch 50 (Holotypus: B 20 0107116; isotypi: BM, K 000351299, K 000351300, LISU, P 00466571).


  • Homotypic
    • Isoetes aequinoctialis Welw. ex A.Braun, Sitzungsber. Naturf. Freunde, Berlin 1867: 7. 1867. nom. nud.
    • Calamaria aequinoctialis (Welw. ex A.Braun) Kuntze, Rev. Gen. Pl. 2: 828. 1891.
  • Heterotypic
    • Isoetes erongensis Wanntorp, Svensk Bot. Tidsskr. 64: 150. 1970.
      • Typus: ‘South West Africa [Namibia], Karibib District, ‘Ameib’, ± 25 km northwest of Usakos', H. Wanntorp & H.E. Wanntorp 992 (Holotypus: S; isotypus: PRE 0074327).


Native distribution areas:
  • Continental: Africa
    • Regional: West Tropical Africa
      • Ghana, Mali,
    • Regional: East Tropical Africa
      • Tanzania
    • Regional: South Tropical Africa
      • Angola, Zambia, Zimbabwe
    • Regional: Southern Africa
      • Cape Provinces (Northern Cape), Namibia

References: Brummitt, R.K. 2001. TDGW – World Geographical Scheme for Recording Plant Distributions, 2nd Edition