Plant Systematics and Evolution

, Volume 149, Issue 3–4, pp 241–252

Hybridization and speciation in the genusDryopteris (Pteridophyta:Dryopteridaceae) on Pico Island in the Azores

  • Mary Gibby


The cytology of wild hybrids ofDryopteris from Pico, Azores has been examined. This has confirmed the parentage of the hybrids, and provided evidence to support the view that the tetraploid speciesD. crispifolia has evolved in the Azores from two diploid species,D. aemula andD. azorica, by hybridization and polyploidy.

Key words

Pteridophyta Aspidiaceae Dryopteridaceae Dryopteris aemula D. azorica D. crispifolia D. dilatata D. affinis subsp.affinis Hybrids cytology Flora of Pico Azores 


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Copyright information

© Springer-Verlag 1985

Authors and Affiliations

  • Mary Gibby
    • 1
  1. 1.Department of BotanyBritish Museum (Natural History)LondonEngland, UK

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