A biometric study of some hybridizing Crataegus populations in Denmark |
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| Authors: | Knud IB Christensen |
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| Institution: | Inst, of Systematic Botany, Univ. of Copenhagen, Gothersgade 140, DK–1123 Copenhagen K, Denmark |
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| Abstract: | Crataegus curvisepala Lindm., C. laevigata (Poiret) DC. and C. monogyna Jacq. (Rosaceae) form hybrid complexes in Denmark due to introgression. C. palmstruchii Lindm. seems to be variously introgressed individuals of C. laevigata. C. eremitagensis Raunk., C. raavadensis Raunk. and C. schumacheri Raunk. apparently belong to C. curvisepala x laevigata. The delimitation between C. curvisepala x laevigata and C. laevigata x monogyna is discussed. |
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