Original Research

Morphology and anatomy of the rhizome and frond in the African species of Polystichum (Pteropsida: Dryopteridaceae)

J. P. Roux, A. E. van Wyk
Bothalia | Vol 30, No 1 | a542 | DOI: https://doi.org/10.4102/abc.v30i1.542 | © 2000 J. P. Roux, A. E. van Wyk | This work is licensed under CC Attribution 4.0
Submitted: 22 September 2000 | Published: 03 February 2000

About the author(s)

J. P. Roux, H.C W.J Schweickerdt Herbarium, Department of Botany, Univer­sity of Pretoria,, South Africa
A. E. van Wyk, National Botanical Institute, Compton Herbarium, South Africa

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Abstract

The generic circumscription of the polystichoid ferns within the Dryopteridaceae and their relationships has been and still is much debated. Although floristic accounts for Polystichum are available for many parts of the world, its morphology and evolutionary trends within the genus are still poorly understood. In this study, primarily based on the  Polystichum species from Africa and neighbouring islands, the morphology and anatomy of the rhizome and frond are addressed. Several species from other genera within the Dryopteridaceae are used for comparison, to gain a better understanding of generic affinities and evolution in this family.


Keywords

anatomy; lamina; morphology; <i>Polystichum</i>; Pteridophyta;rhizome

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