Description of the genus

Rhizome creeping, densely set with lanceolate-acuminate, entire scales. Stipe with a dense tuft of scales at the base. Fronds tufted, herbaceous. Lamina ovate-triangular to pentagonal in outline, 3- to 4-pinnatifid, basal pinnae basiscopically developed, veins free, hairy on both surfaces. Sori circular, indusium kidney-shaped, hairy.


Derivation of name:  hypo:below, dema: bundle; refers to the densely clustered tuft of scales at the base of the stipe.

Worldwide: Southern, western and east africa and eastern asia.



We have 1 taxa in the database for Hypodematium.

  • Hypodematium crenatum (Forssk.) Kuhn


  • Crouch, N.R., Klopper, R.R., Burrows, J.E. & Burrows, S.M. (2011) Ferns of Southern Africa, A comprehensive guide. Struik Nature.
  • Jacobsen, W.B.G. (1983) The Ferns and Fern Allies of Southern Africa. Butterworths, Durban and Pretoria.
  • Roux, J.P. (2009) Synopsis of the Lycopodiophyta and Pteridophyta of Africa, Madagascar and neighbouring islands. Strelitzia 23, South African National Biodiversity Institute, Pretoria.
  • Roux, J.P. (2001) Conspectus of Southern African Pteridophyta.Southern African Botanical Diversity Network Report, 13: 1-222.
  • Schelpe, E.A.C.L.E. (1970) Pteridophyta.Flora Zambesiaca, 0: 1-254.