Isoetes welwitschii

Taxonavigation[edit]

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

Isoetes welwitschii A.Braun in Kuhn, Fil. Afr. 196 (1868).

Typus: ‘In Angolae districto Huíla, in pascuis breve herbidis editissimis arenoso-humosis de Empalanca in Morro de Lopollo in 5000 ped. circa 1860’, F.M.J. Welwitsch 166 (Holotypus: B 20 0108478; isotypi: BM, K 000351303, K 000351304, LISU, P 00466565).

Homotypic
- Calamaria welwitschii (A.Braun) Kuntze, Rev. Gen. Pl. 2: 828 (1891).
Heterotypic
- Isoetes natalensis Baker, Handb. Fern-Allies: 132 (1887).
  - Typus: “Griffinshill (Estcourt)”, A. Rehmann 7296 (Holotypus: K000351306; isotypi: BM, P 00466566).
  - Calamaria natalensis (A.Braun) Kuntze, Rev. Gen. Pl. 2: 828 (1891).

Native distribution areas:

Continental: Africa
- Regional: West Tropical Africa
  - Ghana, Nigeria.
- Regional: West-Central Tropical Africa
  - Central African Republic.
- Regional: Northeast Tropical Africa
  - Eritrea, Ethiopia, Sudan.
- Regional: East Tropical Africa
  - Kenya, Tanzania.
- Regional: South Tropical Africa
  - Angola, Zambia.
- Regional: Southern Africa
  - Botswana, KwaZulu-Natal.
- Regional: Western Indian Ocean
  - Madagascar.

Troìa, A., Pereira, J.B.S., Kim, C. & Taylor, W.C. 2016. The genus Isoetes (Isoetaceae): a provisional checklist of the accepted and unresolved taxa. Phytotaxa 277(2): 101–145. DOI: 10.11646/phytotaxa.277.2.1 ResearchGate Reference page.
Roux, J.P. 2009. Synopsis of the Lycopodiophyta and Pteridophyta of Africa, Madagascar and neighbouring islands. Strelitzia 23: 1–296. South African National Biodiversity Institute, Pretoria. ISBN 978-1-919976-48-8. ARK: /t0ps2bc93 PDF Reference page.
Schelpe, E.A.C.L.E. & Anthony, N.C. 1986. Pteridophyta. In O.A. Leistner (ed.), Flora of Southern Africa: [i–iv], v–xv, 1–292. Department of Agriculture and Water Supply, Pretoria. ISBN 0-621-08877-3, BHL Reference page. (!28)