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Tree fern. Caudex slender, 7 m × 10 cm, occasionally sending down lateral "prop" stems which are eventually creeping and may form a new upright caudex. Fronds firmly chartaceous. Stem covered with harsh spines; without aphlebia in the crown of the stem. Stipe spiny, 30 -50 cm long, light to dark brown, covered with glossy, brown, entire, lanceolate scales when young. Lamina up to 2.4 m × 1 m, 3-pinnatifid, ovate in outline. Pinnae up to 52 × 20 cm, oblong, acute, pinnate into narrowly shortly attenuate pinnate pinnules; ultimate segments narrowly oblong-falcate, apex acute to sharply obtuse, margins entire to minutely crenate; upper surface dark green, glabrous, with minute, brown hair-like scales along the costae, lower surface pale green, glabrous but with brown, ovate scales scattered along the costules and costae; rhachis shiny brown with scattered small prickles, glabrous at maturity. Sori up to 9 per pinnule segment, round, indusium unequally cup-shaped.


Creative Commons Attribution Non Commercial 3.0 (CC BY-NC 3.0)

© Mark Hyde, Bart Wursten and Petra Ballings

Source: Flora of Zimbabwe

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