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
LiteratureCrouch, 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.