Species

Cheilanthes angustifrondosa Alston

Synonyms
Common name
Description	Rhizome creeping; rhizome scales linear and tapering to a fine point, 4.5–5 × 0.5 mm, brown with a dark central stripe and pale margins. Fronds monomorphic, tufted, 22–55 cm tall. Stipe 3–14 cm long, purple-brown or chestnut to black, glabrous except at the extreme base. Lamina 1–2-pinnate, if 1-pinnate then pinnae deeply pinnatifid, narrowly oblong-lanceolate in outline, 17–49 × 3–8.5 cm; pinnae in 15–18 pairs, oblong-lanceolate in outline, 1–6 × 0.5–2.8 cm; pinnules or ultimate segments narrowly oblong, 0.5–1 cm × 2–5 mm, apex rounded, crenate to pinnatifid, glabrous; venation obscure. Sori on margins of segments, minute, less than 1 mm in diameter; indusium minute, membranous, entire.
Notes	Differs from other Cheilanthes species by lacking a powdery substance on the undersurface of the lamina, the lamina is glabrous on both surfaces and the fronds are narrowly elliptic & 2-3 pinnatifid.
Derivation
Habitat	Among rocks in woodland, rocky hillsides, rock crevices in escarpment forest.
Distribution worldwide	See African distribution.
Distribution in Africa	Angola , Dem. Republic of Congo , Mozambique , Tanzania , Zambia .
Growth form	Lithophytic, terrestrial.
Literature	Kornas, J. (1979) Distribution and ecology of the Pteridophytes in Zambia. Polska Akademia Nauk Wydzial II Nauk Biologicznych. Page 47. 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 180. Roux, J.P. (2001) Conspectus of Southern African Pteridophyta.Southern African Botanical Diversity Network Report, 13 Page 61. Schelpe, E.A.C.L.E. (1970) Pteridophyta.Flora Zambesiaca, 0 Pages 123 - 124. Verdcourt, B. (2002) Adiantaceae.Flora of Tropical East Africa, Pages 33 - 34.