Plant Systematics and Evolution

, Volume 130, Issue 3–4, pp 235–252

Cytogenetic and phytochemical investigations in hybrids of MacaronesianDryopteris (Pteridophyta: Aspidiaceae)

  • Mary Gibby
  • C. -J. Widén
  • Hely Katriina Widén
Article

Abstract

The cytology and phloroglucinol composition of wild and synthesized hybrids of MacaronesianDryopteris species have been examined. Both cytological and chemical evidence suggest that the tetraploidD. guanchica has arisen from the diploid speciesD. aemula andD. maderensis by hybridization and chromosome doubling. However, the formation of the characteristic fully aromatic compounds inD. aemula appears to be suppressed in most of the hybrids involving this species, and inD. guanchica.

Key words

Pteridophyta Aspidiaceae Dryopteris aemula D. azorica D. maderensis D. oligodonta D. crispifolia D. guanchica D. carthusiana D. campyloptera Hybrids cytology phloroglucinol composition Flora of Macaronesia 

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Copyright information

© Springer-Verlag 1978

Authors and Affiliations

  • Mary Gibby
    • 1
  • C. -J. Widén
    • 2
  • Hely Katriina Widén
    • 2
  1. 1.British Museum (Natural History)LondonEngland
  2. 2.Institute of Pharmaceutical ChemistryUniversity of KuopioKuopio 10Finland

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