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EARLY LINEAGES IN APIALES: INSIGHTS FROM MORPHOLOGY, WOOD ANATOMY AND MOLECULAR DATA

Published online by Cambridge University Press:  23 October 2001

P. P. LOWRY II ,
G. M. PLUNKETT  and
A. A. OSKOLSKI
P. P. LOWRY II
Affiliation:
Laboratoire de Phanérogamie, Muséum National d'Histoire Naturelle, 16 rue Buffon, F-75005 Paris, France
G. M. PLUNKETT
Affiliation:
Department of Biology, Virginia Commonwealth University, PO Box 842012, Richmond, VA 23284, USA
A. A. OSKOLSKI
Affiliation:
Botanical Museum, Komarov Botanical Institute of the Russian Academy of Sciences, Prof. Popov Str. 2, 197376 St Petersburg, Russia
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Extract

Recent molecular studies indicate that the araliaceous tribes Myodocarpeae R. Vig. (Delarbrea Vieill., Pseudosciadium Baill. and Myodocarpus Brongn. & Gris.) and Mackinlayeae R. Vig. (Apiopetalum Baill., Mackinlaya F. Muell. and several genera of Hydrocotyloideae Link (Apiaceae)) comprise basally branching lineages within Apiales, an interpretation consistent with data from morphology and wood anatomy. Comparison of selected features in these genera, and in close relatives of Apiales, suggests that ancestral character states for the order may include: simple leaves, inflorescences in panicles of umbellules, flowers with articulated pedicels and a bicarpellate gynoecium, an andromonoecious, duodichogamous sexual system, septate fibres, the absence of radial canals, and the presence of paratracheal axial parenchyma in the wood.

Keywords

Ancestral charactersApiaceaeApiopetalumAraliaceaeDelarbreaMackinlayaMyodocarpusphylogenyPseudosciadiumUmbelliferae
Type
Research Article
Information
Edinburgh Journal of Botany , Volume 58 , Issue 2 , June 2001 , pp. 207 - 220
Copyright
© 2001 Trustees of the Royal Botanic Garden, Edinburgh

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