Polystichum Roth

First published in Tent. Fl. Germ. 3(1): 31, 69 (1799)
This genus is accepted
The native range of this genus is Cosmopolitan.

Descriptions

Dryopteridaceae, JP Roux, M Shaffer-Fehre, B Verdcourt. Flora of Tropical East Africa. 2007

Morphology General Habit
Terrestrial or lithophytic ferns, rarely epiphytic
Vegetative Multiplication Rhizomes
Rhizome erect or creeping, with dense scales
Morphology Leaves
Fronds tufted or spaced.
Morphology Leaves Stipes
Stipe scaly when young, glabrescent, densely covered in scales.
Morphology Leaves Leaf lamina
Lamina pinnate to 3-pinnate, often proliferous near apex.
Morphology Leaves Pinnae
Pinnae opposite to alternate, petiolulate.
Morphology Leaves Rachis
Rachis densely covered in scales; venation free, anadromous
Morphology Reproductive morphology Sori
Sori borne medially near or at vein ending, circular, indusium peltate or rarely absent.
Note
160–200 species throughout temperate zone and in tropical mountains.
[FTEA]

Sources

  • Flora of Tropical East Africa

    • Flora of Tropical East Africa
    • http://creativecommons.org/licenses/by-nc-sa/3.0
  • Kew Backbone Distributions

    • The International Plant Names Index and World Checklist of Vascular Plants 2022. Published on the Internet at http://www.ipni.org and https://powo.science.kew.org/
    • © Copyright 2022 World Checklist of Vascular Plants. http://creativecommons.org/licenses/by/3.0
  • Kew Names and Taxonomic Backbone

    • The International Plant Names Index and World Checklist of Vascular Plants 2022. Published on the Internet at http://www.ipni.org and https://powo.science.kew.org/
    • © Copyright 2022 International Plant Names Index and World Checklist of Vascular Plants. http://creativecommons.org/licenses/by/3.0