Dryopteris dracomontana Schelpe & N.C.Anthony
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Description |
Rhizome procumbent, c. 10 mm in diameter; rhizome scales concolorous, lanceolate in outline, apex tapering to a point, up to 12 mm long, margins fimbriate. Fronds tufted, strongly dimorphic, fertile fronds erect, longer and narrower than the semiprostrate sterile fronds. Sterile stipe 4-9 cm long, strawcoloured, scales ovate in outline, brown, entire or fimbriate. Sterile lamina 11-25 x 6-10 cm, narrowly deltate to ovate in outline, 2-pinnate to 3-pinnatifid; pinnules incised or pinnatifid, apices rounded, venation raised and prominent below, hairless on both surfaces. Fertile stipe up to 20 cm long, otherwise as for sterile stipe. Fertile lamina 15-25 cm long, narrowly lanceolate in outline, 3-pinnatifid; pinnules narrowly oblong, apices rounded. Sori round, 8-10 per pinnule, covering most of the lamina undersurface; indusium 0.8-1 mm in diameter, membranous. |
Notes | |
Derivation | dracomontana: of the Dragon mountain, the Drakensberg were the type specimen was collected. |
Habitat | Basalt boulders or scree in short grassland, low thick ericoid Helichrysum and Euryops schrub, full sun or partial shade in the lee of rocks. |
Distribution worldwide | Endemic to southern Africa. |
Distribution in Africa |
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Growth form |
Lithophytic, terrestrial. |
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