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Hybridization and Speciation in the Genus Dryopteris (Pteridophyta: Dryopteridaceae) on Pico Island in the Azores
Plant Systematics and Evolution
Vol. 149, No. 3/4 (1985), pp. 241-252
Published by: Springer
Stable URL: http://www.jstor.org/stable/23672719
Page Count: 12
You can always find the topics here!Topics: Hybridity, Tetraploidy, Species, Diploidy, Metaphase, Biological taxonomies, Genetic hybridization, Ferns, True ferns, Endemic species
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The cytology of wild hybrids of Dryopteris from Pico, Azores has been examined. This has confirmed the parentage of the hybrids, and provided evidence to support the view that the tetraploid species D. crispifolia has evolved in the Azores from two diploid species, D. aemula and D. azorica, by hybridization and polyploidy.
Plant Systematics and Evolution © 1985 Springer