Isoetes - Isoetaceae

Isoetes biafrana Alston

 

 

 

 

Synonyms

Common name

Description

Pseudo-corm 3-lobed. Leaves brownish in the lower part, green higher up, 60-130 mm × 1 mm, no stomata, rounded quadrangular section, slightly flattened on the upper side, lower part oval-oblong. Ligule deltoid. Velum covering 2/3 of the sporangia. Sporangia 3 mm long when dry, ovale. Megaspores about 0.5, greyish, grainy, triradiate, with a single central tuber. Micropsores smooth.

Notes

Derivation

Habitat

Submerged, wet.

Distribution worldwide

See African distribution.

Distribution in Africa

Benin, Cameroon, Equatorial Guinea (incl. Bioko).

Growth form

Terrestrial.

Literature

  • Roux, J.P. (2009) Synopsis of the Lycopodiophyta and Pteridophyta of Africa, Madagascar and neighbouring islands. Strelitzia 23, South African National Biodiversity Institute, Pretoria. Page 8.
  • Tardieu-Blot, M.-L. (1964) Ptéridophytes vol.3. Flore du Cameroun, Pages 18 - 20. (Includes a picture).
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