Floral morphology and embryo sac development in Burretiodendron kydiifolium Y. C. Hsu et R. Zhuge (Tiliaceae) and their systematic significance |
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| Authors: | YA TANG |
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| Affiliation: | School of Plant Sciences, The University of Reading, PO Box 221, Reading RG6 6AS;Conservatoire et Jardin Botaniques, CH-1292 Geneva &IBSG, University of Lausanne, CH-1015 Lausanne, Switzerland |
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| Abstract: | Phylogenetic analysis of rbc L and atp B gene sequences from Biebersteinia Stephan (represented by B. orphanidis Boiss.) and from selected taxa of the rosids I and II clades does not support traditional grouping of this genus in Geraniaceae s. s. nor in Geraniales, but indicates strong support for a position nested within Sapindales (as recently delimitated). The rbc L and atp B phylogenies obtained were congruent but differently resolved and do not link Biebersteinia to any other clade within Sapindales. Biebersteinia is on a long branch on its own which, given the particular combination of apomorphic morphological characters, justifies familial status. |
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| Keywords: | Sapindales molecular systematics |
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