Floral development in Cleome hassleriana is briefly described. Experimental evidence is presented supporting the hypothesis that the anthers control stamen filament elongation by supplying IAA rather than kinetin or gibberellic acid. This control depends upon the developmental stage of the bud and does not exclude the effect of other floral organs on stamen filament elongation at early developmental stages. Evidence that the anthers also partially control stamen filament and floral abscission by supplying IAA is given.
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James L. Koevenig (1973) studied this question.
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