Asplenium - Aspleniaceae

Asplenium staudtii Hieron.

 

 

 

 

Synonyms

Common name

Description

Rhizome short, erect; rhizome scales ovate-triangular in outline, apex tapering to a point, formed of thick-walled central cells, thinner-walled marginal ones, clear lumen. Fronds monomorphic, tufted, subcoriaceous. Stipe 5-9 cm long, greyish, grooved apically, scaly at the base. Lamina pinnate, oblong in outline, 30-35 x 10-12 cm, basal pinnae slightly reduced, the upper ones gradually decreasing, apical pinna linear, deeply pinnatifid; pinnae 20-30 pairs, lanceolate in outline, sickle-shaped, apex pointed, base uneven, basiscopic side oblique over 1/3 of the length of the pinna, acroscopic side with an auricle, margin toothed, 7 x 1-2 cm, sessile or short-petiolate; rhachis winged in the upper part, set with small scales; costa apperent; veins forked, not reaching the margin. Sori 0.2-0.6 cm long, oblong in outline, very much sunken into the lamina, not reaching the costa or the margin.

Notes

Derivation

staudtii: named after A. Staudt, German botanist and botanical collector (? - 1897), he first discovered this fern in Lolodorf, Cameroon.

Habitat

In sunny places.

Distribution worldwide

See African distribution.

Distribution in Africa

Cameroon, Dem. Republic of Congo.

Growth form

Epiphytic, terrestrial.

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 97.
  • Tardieu-Blot, M.-L. (1964) Ptéridophytes vol.3. Flore du Cameroun, Pages 199 - 200. (Includes a picture).
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