Abstract.
In molecular analyses Didymelaceae together with Buxaceae form a fairly well-supported clade among families near the base of eudicots. Only little is known, however, about the flowers and inflorescences of Didymelaceae. In this study, the structure of the female flowers and inflorescences of Didymeles integrifolia was studied. Flowers are unicarpellate and orientation of the carpel is slightly deflected abaxially as in Proteaceae. Otherwise, Didymelaceae share many features of the gynoecium with Buxaceae and some other basal eudicots: the carpels are ascidiate in the lower half; anthetic carpels are completely closed by postgenital fusion; stigma is double-crested and widely decurrent; stigmatic papillae are unicellular and pear-shaped; the pollen tube transmitting tract is extensive and prominently differentiated; fruits are fleshy drupes with persistent stigma and style. However, the exceedingly elongate base of the integuments of Didymelaceae is an unusual feature among basal eudicots and even angiosperms.
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Received October 31, 2002; accepted December 17, 2002 Published online: March 31, 2003
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von Balthazar, M., Schatz, G. & Endress, P. Female flowers and inflorescences of Didymelaceae. Plant Syst. Evol. 237, 199–208 (2003). https://doi.org/10.1007/s00606-002-0262-5
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DOI: https://doi.org/10.1007/s00606-002-0262-5