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isomerous

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i·so·mer·ic

(ī'sō-mer'ik),
Relating to or characterized by isomerism.
Synonym(s): isomerous
Farlex Partner Medical Dictionary © Farlex 2012

isomerous

(ī-sŏm′ər-əs)
adj.
Having or designating floral whorls with equal numbers of parts in each whorl.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

isomerous

(of plants) having the same number of parts in different floral whorls; for example a plant may possess five stamens and five carpels.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005
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References in periodicals archive
Androecium: stamens [1 (Usteria)-]4-5(-16), isomerous, alternipetalous, adnate to corolla: anthers bisporangiate or tetrasporangiate, dithecal and introrse; dehiscing via longitudinal slits; usually isostylous, occasionally heterostylous (Gelsemieae); usually free, rarely connivent (Gardneria).
Androecium: stamens (2-) 7-12 (-30) (6-30 in Theligonum), usually isomerous, alternipetalous, adnate to corolla tube or corolla mouth: filaments rarely connate (Neurocalyx) or strongly unequal: anthers tetrasporangiate, dithecal, dehiscing via longitudinal slits or rarely by pores (Argostemma); rarely connivent (Argostemma); sometimes connective produced apically.
A consensus classification for the order Gentianales with additional details on the suborder Apocynineae
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