Isoetes aequinoctialis

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Taxonavigation: Isoetales 

Superregnum: Eukaryota
Regnum: Plantae
Divisio: Tracheophyta
Divisio: Lycopodiophyta
Classis: Lycopodiopsida
Subclassis: Isoetidae
Ordo: Isoetales

Familia: Isoetaceae
Genus: Isoetes
Species: Isoetes aequinoctialis


Isoetes aequinoctialis Welw. ex A.Braun in Kuhn,f. 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. TDWG – World Geographical Scheme for Recording Plant Distributions, 2nd Edition


Additional references[edit]