Didymoglossum - Hymenophyllaceae

Didymoglossum reptans (Sw.) C.Presl.

Photo: JE. Burrows
South Africa

Photo: JE. Burrows
South Africa

 

 

 

 

Synonyms

Trichomanes reptans Sw.

Common name

Description

Rhizome creeping, with dark brown linear-lanceolate hairs to 1 mm long. Fronds spaced 0.3–2 cm apart. Stipe 1–7 mm long, with hairs as on the rhizome. Lamina oblong to narrowly obovate, 1–5.5 x 0.4–2.6 cm, very irregularly pinnatifid, margin sparsely set with pairs of stiff dark brown hairs to 0.6 mm; marginal vein absent. Sori at lobe apices of distal lobes; indusium narrowly obconical, 2–3.3 mm long, 0.6–1 mm in diameter, not or hardly winged, lips flared and to 6 mm long and 13 mm wide, not or hardly flanked by the lamina.

Notes

Derivation

reptans: creeping, most species of Didymoglossum are creeping.

Habitat

Moist forest along streams, base of tree-trunks, mossy boulders on comparatively dry forest floor..

Distribution worldwide

Africa, Madagascar, Central and South America.

Distribution in Africa

South Africa, Tanzania .

Growth form

Epiphytic, lithophytic.

Literature

  • Beentje, H.J. (2008) Hymenophyllaceae. Flora of Tropical East Africa, Page 13. (Includes a picture).
  • Crouch, N.R., Klopper, R.R., Burrows, J.E. & Burrows, S.M. (2011) Ferns of Southern Africa, A comprehensive guide. Struik Nature. Pages 152 - 153. (Includes a picture).
  • 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 42.
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