Asplenium - Aspleniaceae

Asplenium longicauda Hook.

 

 

 

 

Synonyms

Asplenium pachysorum Baker

Common name

Description

Rhizome short; rhizome scales lanceolate in outline, margins without extensions, cells dark-walled. Fronds closely spaced. Stipe 20-30 cm long, greenish with purple spots, base with scales, otherwise glabrous. Lamina 25-35 x 15-20 cm, imparipinnate, terminal pinnae resembling lateral ones but often proliferous and long & gradually narrowed and carrying a bud at its top. Pinnae 5-7 paires, subopposite, petiolate, oblong-lanceolate in outline, apex gradually tapering to a point, base slightly unequal, margins wavy to lobed; veins spaced, simple or forked. Costa prominent below, much lighter than lamina. Sori short, not reaching the costa or the margin.

Notes

Derivation

Habitat

Vertical rock.

Distribution worldwide

Africa, Fernando Po, Principe, Madagascar.

Distribution in Africa

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

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 89.
  • Tardieu-Blot, M.-L. (1964) Ptéridophytes vol.3.Flore du Cameroun, Pages 186 - 188. (Includes a picture).

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