Asplenium stipicellatum Pic.Serm.
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Description |
Rhizome short decumbent, up to 4 cm long and 5 mm in diameter; rhizome scales lanceolate in outline, base heart-shaped, margin entire, up to 4 x 1 mm, reddish brown, thinly papery, with lattice appearance. Fronds monomorphic, closely spaced, up to 1.5 m long, arching. Stipe up to 46 cm long and 3 mm in diameter, dark brown, firm, grooved adaxially, with pale reddish-brown, thinly papery scales; scales narrowly lanceolate to filiform in outline, up to 3.5 x 1 mm, base cordate-imbricate, margin entire or with a few basal short filiform outgrowths. Lamina 2-pinnate, lanceolate in outline, up to 64 x 18 cm; pinnae up to 26 pairs, near opposite to alternate, gradually reducing in size towards lamina apex, petiole up to 7 mm long, slightly acroscopically developed, inaequilaterally lanceolate to narrowly lanceolate in outline, becoming narrowly rhombic towards the lamina apex, up to 11.5 x 4.5 cm, 1-pinnate; pinnules mid-green, spaced, somewhat acroscopically developed, inaequilaterally narrowly rhomboid to linear in outline, pinnatisect, lobes linear with short and long acute teeth on the distal margins, glabrous adaxially; rhachis brown to reddish-brown, firm, grooved adaxially, moderately set with scales similar to those on stipe, also small scales on costae and costules; venation free, evident, without false veins. Sori linear, up to 5 mm long; indusium herbaceous, linear, entire. |
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Habitat | |
Distribution worldwide | See African distribution. |
Distribution in Africa |
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Growth form |
Epiphytic, lithophytic, terrestrial. |
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