Cyclosorus Link

Photo: P. Ballings


Description of the genus

Plants terrestrial. Rhizome wide-creeping, branched. Fronds monomorphic, closely to widely spaced, pinnate to 2-pinnate. Lamina with thin scales on the undersurface of costae, no reduced basal pinnae. Pinnae lobes with a few pairs of veins meeting below the sinus between the lobes. Sori circular; indusium very small, reniform.


Derivation of name:  kuklos: circle; referring to the shape of the sori.

Worldwide: c. 3 species, pantropical distribution.



We have 5 taxa in the database for Cyclosorus.

  • Cyclosorus glandafrus (Viane) J.P.Roux
  • Cyclosorus interruptus (Willd.) H. Itô
  • Cyclosorus molundensis (Brause) Pic.Serm.
  • Cyclosorus striatus (Schumach.) Ching
  • Cyclosorus tottus (Thunb.) Pic.Serm.


  • Crouch, N.R., Klopper, R.R., Burrows, J.E. & Burrows, S.M. (2011) Ferns of Southern Africa, A comprehensive guide. Struik Nature.
  • Jacobsen, W.B.G. (1983) The Ferns and Fern Allies of Southern Africa. Butterworths, Durban and Pretoria.
  • Roux, J.P. (2001) Conspectus of Southern African Pteridophyta.Southern African Botanical Diversity Network Report, 13: 1-222.