Asplenium - Aspleniaceae

Asplenium macrophlebium Baker

 

 

 

 

Synonyms

Common name

Description

Rhizome erect, less often creeping, short; rhizome scales pale brown, lanceolate in outline, subentire, clathrate, to 3 mm long. Fronds tufted, oblong-lanceolate in outline, 15–60 x 3–9 cm, usually proliferous at apex. Stipe green, canaliculate, 5–16 cm long, with narrow lanceolate scales. Lamina subcoriaceous, pinnate, basal pinnae not decreasing in size, pinnae decrescent towards apex. Pinnae in 7–20 pairs, subsessile, opposite or alternate, at right angles to rhachis, lanceolate in outline, 2–6 x 0.9–2.3 cm, base unequal, the basiscopic part cuneate, the acroscopic part cuneate and parallel with the rachis for a bit and there forming a lobe, margin with deep blunt tooth, apex rounded; costa whitish, veins forked in and near acroscopic basal lobe but otherwise unbranched. Rhachis flattened, narrowly winged upwards, slightly scaly. Sori elongate, many, closely parallel, almost reaching costa and margin, 2–10 mm long; indusium membranous, entire or nearly so, narrow, to 0.5 mm wide.

Notes

Derivation

Habitat

Moist forest.

Distribution worldwide

See African distribution.

Distribution in Africa

Burundi, Cameroon, Congo, Dem. Republic of Congo, Equatorial Guinea (incl. Bioko), Guinea, Ivory Coast, Kenya, Liberia, Sudan and South Sudan, Tanzania , Uganda.

Growth form

Epiphytic, terrestrial.

Literature

  • Beentje, H.J. (2008) Aspleniaceae. Flora of Tropical East Africa, Pages 22 - 23. (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 91.
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