Cheilanthes - Sinopteridaceae

Cheilanthes leachii (Schelpe) Schelpe

Photo: BT. Wursten
Zimbabwe

Photo: P. Ballings
Zimbabwe

Photo: P. Ballings
Zimbabwe

Photo: P. Ballings
Zimbabwe

Photo: P. Ballings
Zimbabwe

Photo: P. Ballings
Zimbabwe

Photo: P. Ballings
Zimbabwe

 

 

 

 

Synonyms

Notholaena leachii Schelpe

Common name

Description

Rhizome shortly creeping to erect, up to 4 mm in diameter; rhizome scales brown often with a dark central stripe, lanceolate. Fronds tufted, erect, up to 31 cm long, proliferous at the apex, occasionally on costae of basal pinnae. Stipe dark brown to almost black when mature, up to 23 cm long, more or less witht thin, brown, hairlike scales when young, later glabrous. Lamina up to 10 cm × 4 cm, ovate to lanceolate in outline, 2-pinnatifid to 2-pinnate, sometimes 3-pinnatifid on the lower basiscopically developed pinnae. Pinnae ovate or triangular, somewhat widely spaced, both surfaces set with scattered, long, rusty-coloured hairs. Rhachis as for stipe. Sori marginal; indusium pale brown, continuous and very narrow.

Notes

May be mistaken for C. inaequalis which is non-proliferous.

Derivation

leachii: named after L.C. Leach of the National Herbarium in Zimbabwe. He accompanied Prof. Schelpe in 1962 on an expedition to nothern Mozambique, where the type specimen was collected

Habitat

Rock crevices and boulder bases, among grasses and sedges near streams, at vegetation islands on granite whalebacks.

Distribution worldwide

Malawi, Mozambique, Tanzania, Zambia, Zimbabwe

Distribution in Africa

Malawi, Mozambique, Tanzania , Zambia, Zimbabwe.

Growth form

Lithophytic, terrestrial.

Literature

  • Burrows, J.E. (1990) Southern African Ferns and Fern Allies. Frandsen, Sandton. Pages 129 - 130. (Includes a picture).
  • Jacobsen, W.B.G. (1983) The Ferns and Fern Allies of Southern Africa. Butterworths, Durban and Pretoria. Pages 254 - 255. (Includes a picture).
  • Kornas, J. (1979) Distribution and ecology of the Pteridophytes in Zambia. Polska Akademia Nauk Wydzial II Nauk Biologicznych. Pages 50 - 51.
  • Roux, J.P. (2001) Conspectus of Southern African Pteridophyta. Southern African Botanical Diversity Network Report, 13 Page 64.
  • 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 183.
  • Schelpe, E.A.C.L.E. (1970) Pteridophyta. Flora Zambesiaca, 0 Pages 125 - 126.
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