The Structure of Some Crataegus (Rosaceae) Populations in Greece

Morphological evidence of hybridization and introgression between (1) Crataegus heldreichii and C. pycnoloba, (2) C. heldreichii and C. monogyna, (3) C. monogyna and C. orientalis, (4) C. monogyna and C. rhipidophylla is presented in Wells' distance diagrams. To avoid within-character weighting...

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Bibliographic Details
Published in:Willdenowia 1992-12, Vol.22 (1/2), p.65-79
Main Author: Christensen, Knud Ib
Format: Article
Language:English
Subjects:
Biological and medical sciences
Bracts
Calyx
Fundamental and applied biological sciences. Psychology
Genetic hybridization
Hybridity
Orientalism
Plant cytology, morphology, systematics, chorology and evolution
Plants
Population parameters
Quantitative traits
Spermatophyta
Stipules
Systematics (diagnosis, chromosome numbers)
Taxa
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Summary:Morphological evidence of hybridization and introgression between (1) Crataegus heldreichii and C. pycnoloba, (2) C. heldreichii and C. monogyna, (3) C. monogyna and C. orientalis, (4) C. monogyna and C. rhipidophylla is presented in Wells' distance diagrams. To avoid within-character weighting effects a slightly modified computation of Wells' distance coefficient is suggested.
ISSN:0511-9618
1868-6397