Asplenium multiforme Krasser
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Common name |
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Description |
Rhizome short, creeping, 4-10 mm in diameter; rhizome scales dark brown, twisted, clathrate with large cells, concolorous, linear in outline, tapering from the base to a sharp point, with a few filiform outgrowths, c. 6 mm long. Fronds closely spaced, leathery. Stipe 9-14 cm long, not quite as long as lamina, green, becoming chocolate brown, sparsely set with hair-like scales but denser towards the base. Lamina oblong-lanceolate to narrowly ovate or sometimes narrowly triangular in outline, 20-32.5 x 2.5-4 cm, 2-pinnate, hairless. Pinnules wedge-shaped, rhomboid-deltoid, crenate with truncate, erose distal margins, basal pinnule not deeply lobed, mid to dark green above, paler below, veins prominent above. Rhachis green turning brown basally for at least half its lenght, brown hairlike scales deciduous, usually persisting at base of costa. Sori linear in outline, 4-6 mm long, set along radiating veins; indusium linear, entire. |
Notes | |
Derivation | multiforme: of many shapes, relating to the variability in pinnae division and pinnule shape of this species. |
Habitat | Rock crevices in dry areas, sandstone, quartzite or dolorite, rocky outcrops in grassland. |
Distribution worldwide | See African distribution; endemic to southern Africa. |
Distribution in Africa |
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Growth form |
Lithophytic, terrestrial. |
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