Asplenium - Aspleniaceae

Asplenium rukararense Brause

 

 

 

 

Synonyms

Common name

Description

Rhizome shortly creeping (type erect), to 3 mm diameter; rhizome scales mid-brown, elongate-deltoid in outline, apex pointed ending in hair-tip, to 8 x 2.5 mm, becoming glabrous. Fronds to 40 cm long, proliferous just below the apex. Stipe grey, 10-20 cm long, sparsely set with linear scales. Lamina lanceolate in outline, 25-35 x 8-17 cm, 2-pinnatifid, basal few pinnae slightly reduce, dapex decrescent. Pinnae 15-20 pairs, to 9 x 2.4 cm, deeply pinnatifid, linear-lanceolate in outline, base subtruncate; ultimate segments in 11-13 pairs, basal ones bifurcate or trifid, others with a notch at the apex, lobes ovate with toothed apex and decurrent base. Sori at the base of ultimate segments, 1.5-3 mm long; indusium membranous, entire, to 0.4 mm wide.

Notes

Derivation

Habitat

Distribution worldwide

See African distribution.

Distribution in Africa

Burundi, Rwanda.

Growth form

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Literature

  • Beentje, H.J. (2008) Aspleniaceae. Flora of Tropical East Africa, Pages 68 - 69.
  • 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 95.
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