Pollen grain numbers, ovule numbers and pollen-ovule ratios in Caryophylloideae: correlation with breeding system, pollination, life form, style number, and sexual system

Springer Science and Business Media LLC - Tập 14 Số 5 - Trang 279-289 - 2002
Andreas Jürgens1, Taina Witt2, Gerhard Gottsberger2
1Department of Plant Systematics, University of Bayreuth, Universitätsstrasse 30, 95440 Bayreuth, Germany
2Department of Systematic Botany and Ecology, University of Ulm, 89081 Ulm, Germany

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