Asplenium - Aspleniaceae

Asplenium macrophlebium Baker

 

 

 

 

Synonyms

Common name

Description

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

Understory of shady, moist forest; sandy or marshy ground.

Distribution worldwide

See African distribution.

Distribution in Africa

Burundi, Cameroon, Congo, Dem. Republic of Congo, Equatorial Guinea (incl. Bioko), Gabon, 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.
  • Tardieu-Blot, M.-L. (1964) Ptéridophytes vol.3.Flore du Cameroun, Pages 193 - 194.
  • Thardieu-Blot, M.L. (1964) Ptéridophytes vol.8.Flore du Gabon, Pages 132 - 133.
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