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obdiplostemonous. In DICTIOUS you will not only get to know all the dictionary meanings for the word
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English
Etymology
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Adjective
obdiplostemonous (not comparable)
- (botany, of flowers) Having two sets of stamens in alternating whorls, with the outer whorl opposite the petals.
1978, Hsüan Keng, Ro-Siu Ling Keng, Orders and families of Malayan seed plants: synopsis of orders and families of Malayan gymnosperms, dicotyledons, and monocotyledons, NUS Press, page 173:[...] the stamens, which are definite in number, normally obdiplostemonous (namely, the stamens are in two alternating whorls, those of the outer whorl opposite the petals – see Fig. 102) [...]
1990, Klaus Kubitzki, Karl Ulrich Kramer, P. S. Green, Jens G. Rohwer, Volker Bittrich, The Families and genera of vascular plants, volume 6, Springer, page 435:This arrangement led van Steenis (1932) to hypothesize an obdiplostemonous ancestor for the family.
1996, Peter K. Endress, Diversity and evolutionary biology of tropical flowers, Cambridge University Press, page 96:Diplostemonous and obdiplostemonous flowers may also occur in the same family (e.g. Rutaceae); Zygophyllaceae are obdiplostemonous, Liliaceae are diplostemonous.
2010, Louis P. Ronse De Craene, Floral Diagrams: An Aid to Understanding Flower Morphology and Evolution, Cambridge University Press, page 203:In the genus Mitella the androecium can exceptionally be more variable, ranging from obdiplostemonous to (ob)haplostemonous arrangements.