Practice question
Question
Monothecous anthers are characteristic of
Explanation
Monothecous anther contains single theca with two microsporangia after coalescence during development, typically kidney-shaped reniform after dehiscence. Malvaceae exhibits monothecous, reniform anthers borne on monadelphous staminal tube because each original dithecous anther splits and halves diverge during development. Solanaceae, Fabaceae, Poaceae retain dithecous bilobed anthers with four pollen sacs. Monothecous nature correlates with numerous stamens, mucilaginous spiny pollen, assisting entomophily and providing large pollen load. In Hibiscus rosa-sinensis this trait with epicalyx and twisted corolla serves diagnostic family combination for Malvaceae.
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