Asplenium - Aspleniaceae

Asplenium ruwenzoriense Baker

 

 

 

 

Synonyms

Common name

Description

Only known from type specimen, basal parts of type material not preserved. Lamina oblong-lanceolate in outline, 60-90 cm long, pinnate, terminal pinnae gradually decrescent. Pinnae at least 25 pairs, lower alternate, upper opposite, linear in outline, 10-13 x 1.2-1.4 cm, sessile or very shortly stalked, base unequal, margin crenate, apex tapering to a point, veins forked. Rhachis dark green, glabrous but for the occasional capillary scale. Sori linear-oblong, 4-5 mm long, not reaching the margin, restricted to lower part of the vein; indusium firm, entire, persistent, to 1 mm wide.

Notes

Roux (2009) also places this fern in Sudan, Beentje (F.T.E.A, 2008) states that this taxa is only known from the type material; I have therefor removed Sudan from the distribution of this species.

Derivation

ruwenzoriense: from Ruwenzori, where thetype material was collected.

Habitat

Forest.

Distribution worldwide

See African distribution.

Distribution in Africa

Uganda.

Growth form

.

Literature

  • Beentje, H.J. (2008) Aspleniaceae. Flora of Tropical East Africa, Page 66.
  • 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 96.
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