Multiple choice

When all the stamens fuse forming a single bundle, it is called

  1. monadelphous

  2. diadelphous

  3. syngenesious

  4. epipetalous

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A Correct answer
Explanation

Monadelphous condition occurs when all stamens are united by their filaments into a single bundle (as in Malvaceae). Diadelphous means two bundles (nine + one in Fabaceae). Syngenesious means fused anthers with free filaments (Asteraceae). Epipetalous means stamens attached to petals.