The genusBuxus (Buxaceae): Aspects of its differentiation in space and time

descriptionPublicationkeyboard_double_arrow_right Article 01 Jan 1989 English Publisher:Springer Science and Business Media LLCJournal:Plant Systematics and Evolution, volume 162, pages 267-283 (issn: 0378-2697, eissn: 1615-6110,

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Authors: Egon k�hler; Paul Br�ckner;

doi: 10.1007/bf00936921

The genusBuxus (Buxaceae): Aspects of its differentiation in space and time

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Abstract

Trends of pollen grain aperture evolution and exine characters as well as characters of leaf venation, petiole and axial vascularization are briefly described and related to geographical distribution and classification ofBuxus. A review of fossil records is given. Three major taxonomic groups can be delimitated within the genus, and aspects of their relationships and chorogenesis are presented. The level of differentiation, the pattern of distribution and the fossil record speak in favour of an ancient origin of the genus.

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Humboldt-Universität zu Berlin
Germany

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