Pteridaceae

Pityrogramma Link

Photo: P. Ballings
Zimbabwe

 

Description of the genus

Rhizome erect or creeping; rhizome scales linear attenuate, brown. Stipe dark reddish-brown, glabrous. Fronds tufted or spaced. Lamina 2-4-pinnatifid with white, pink, yellow or orange powder on underside, glabrous on upper surface; veins free. Sori without an indusium, borne along the length of the veins.

 

Derivation of name:  pityon: chaff, gramma: line; reference to the powdery, linear-like arrangement of the sori.

Worldwide: 16 species, neotropical distribution.

 

 

We have 6 taxa in the database for Pityrogramma.

  • Pityrogramma argentea (Willd.) Domin
  • Pityrogramma aurantiaca (Hieron) C.Chr.
  • Pityrogramma calomelanos (L.) Link var. calomelanos
  • Pityrogramma calomelanos (L.) Link var. aureoflava (Hook.) Weath. ex L.H. Bailey
  • Pityrogramma humbertii C.Chr. var. elongata C.Chr.
  • Pityrogramma rupicola Pic.Serm.
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    Literature

  • 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.
  • Schelpe, E.A.C.L.E. (1970) Pteridophyta.Flora Zambesiaca, 0: 1-254.

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