Doryopteris - Sinopteridaceae

Doryopteris concolor (Langsd. & Fisch.) Kuhn

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

Doryopteris kirkii (Hook.) Alston
Doryopteris concolor (Langsd. & Fisch.) Kuhn var. kirkii (Hook.) R.E. Fr.
Doryopteris concolor (Langsd. & Fisch.) Kuhn var. nicklesii (Tardieu) Schelpe
Cheilanthes concolor (Langsd. & Fisch.) R.M. Tryon & A.F. Tryon
Pellaea geraniifolia sensu Sim

Common name

Description

Rhizome erect to procumbent, up to 3 mm in diameter; rhizome scales dark-brown, linear, up to 3 mm in length, margins pale, entire. Fronds tufted, sometimes weakly dimorphic. Stipe up to 23 cm long, dark brown to black, shiny, basally with scattered brown scales similar to those on the rhizome. Lamina broadly ovate to triangular in outline, up to 130 × 120 mm, 2 to 3-pinnatifid, basal pinnae basiscopically developed; pinnae glabrous, dark green above, slightly paler below, venation obscure, margins entire to weakly lobed. Rhachis and costae black, glabrous, rhachis winged. Sori marginal, interrupted or continuous; indusium membranous, discrete or continuous, not apparent at maturity.

Notes

Can be distinguished from other species by its glabrous lamina, that is basiscopically strongly developed and only 2- to 3-pinnatifid.

Derivation

concolor: coloured similarly; alluding to the almost uniform shade of green of both surfaces of the frond.

Habitat

Rock crevices, base of boulders, shaded earth banks in ravines in miombo woodland.

Distribution worldwide

Southern and tropical Africa, Asia, Maylasia, Polynesia, South and Central America.

Distribution in Africa

Angola, Botswana, Burkina Fasso, Burundi, Cameroon, Central African Republic, Democratic Republic of Congo, Eritrea, Ethiopia, Ghana, Guinea, Ivory Coast, Kenya, Liberia, Malawi, Mozambique, Namibia, Nigeria, Rwanda, South Africa, Sudan and South Sudan, Swaziland, Tanzania , Togo, Uganda, Zambia, Zimbabwe.

Growth form

Lithophytic, terrestrial.

Literature

  • Burrows, J.E. (1990) Southern African Ferns and Fern Allies. Frandsen, Sandton. Pages 155 - 156. (Includes a picture).
  • Crouch, N.R., Klopper, R.R., Burrows, J.E. & Burrows, S.M. (2011) Ferns of Southern Africa, A comprehensive guide. Struik Nature. Pages 334 - 335. (Includes a picture).
  • Jacobsen, W.B.G. (1983) The Ferns and Fern Allies of Southern Africa. Butterworths, Durban and Pretoria. Pages 244 - 245. As D. concolor var nicklesii (Tardieu) Schelpe and D. concolor var. kirkii (Hook.) R. E. Fr. (Includes a picture).
  • Kornas, J. (1979) Distribution and ecology of the Pteridophytes in Zambia. Polska Akademia Nauk Wydzial II Nauk Biologicznych. Pages 60 - 61. As D. concolor var nicklesii (Tardieu) Schelpe and D. concolor var. kirkii (Hook.) R. E. Fr.
  • 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 187.
  • Roux, J.P. (2001) Conspectus of Southern African Pteridophyta. Southern African Botanical Diversity Network Report, 13 Pages 72 - 73.
  • Schelpe, E.A.C.L.E. (1970) Pteridophyta. Flora Zambesiaca, 0 Page 121. As D. concolor var nicklesii (Tardieu) Schelpe and D. concolor var. kirkii (Hook.) R. E. Fr.
  •