Didymoglossum - Hymenophyllaceae

Didymoglossum ballardianum (Alston) J.P.Roux






Trichomanes ballardianum Alston
Microgonium ballardianum (Alston) Pic.Serm.

Common name


Rhizome long creeping rhizome. Fronds monomorphic. Lamina suborbicular, 1 x 1 cm, very shortly stalked, margin entire, glabrous; cells hexagonal, 1,5 times longer than wide; veins dichotomous, no false marginal vein. Indusia with dilated opening, receptacle included.




On tree trunks and rocks.

Distribution worldwide

See African distribution.

Distribution in Africa

Cameroon, Congo, Dem. Republic of Congo, Equatorial Guinea (incl. Bioko), Gabon, Nigeria.

Growth form

Epiphytic, lithophytic.


  • 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 41.
  • Tardieu-Blot, M.-L. (1964) Ptéridophytes vol.3.Flore du Cameroun, Pages 80 - 81. (Includes a picture).
  • Thardieu-Blot, M.L. (1964) Ptéridophytes vol.8.Flore du Gabon, Page 60. (Includes a picture).