Asplenium - Aspleniaceae

Asplenium jaundeense Hieron.

 

 

 

 

Synonyms

Asplenium dimidiatum Sw. var. zenkeri Hieron.

Common name

Description

Rhizome shortly creeping; rhizome scales deltoid, cells very dark and completely thickened in the center, forming a kind of pseudo-rib, outer cells thin-walled. Fronds closely spaced, coriaceous. Stipe shorter than lamina, greyish, scaly, 9-10 cm long. Lamina oblong in outline, pinnate, 14-20 cm long. Pinnae 10-20 pairs, (sub)opposite, sessile, trapezoid, 2 x 0.7-1 cm, trilobed, middle lobe slender and long tapering to a point, margins incised, veins subflabellate, several times bifurcate. Sori 0.5-2 cm long, not reaching the costa or margin.

Notes

Derivation

jaundeense: from Yaoundé, Cameroon.

Habitat

On rocks, full light.

Distribution worldwide

See African distribution.

Distribution in Africa

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

Growth form

Lithophytic.

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 88.
  • Tardieu-Blot, M.-L. (1964) Ptéridophytes vol.3. Flore du Cameroun, Page 209. (Includes a picture).
  • Thardieu-Blot, M.L. (1964) Ptéridophytes vol.8. Flore du Gabon, Pages 138 - 139. (Includes a picture).
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