heterostyly

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Related to heterostylous: Pin and thrum

heterostyly

[‚hed·ə′räst·əl·ē]
(botany)
Condition or state of flowers having unequal styles.
References in periodicals archive ?
Heterostylous genetic polymorphisms: Model systems for evolutionary analysis.
Pollen exine dimorphism in ten heterostylous species.
On pollen dimorphism in heterostylous Psychotrieae, especially in the genus Mapouria Aubl.
Evolution towards dioecy in heterostylous populations.
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).