Practice question

Monothecous anthers contain single lobe theca with two pollen sacs after postgenital fusion during development, typically reniform kidney-shaped after dehiscence. Liliaceae typically dithecous dorsifixed introrse dehiscence, Solanaceae dithecous versatile, Cruciferae tetradynamous dithecous also four sporangia. Monothecous condition in Malvaceae such as Hibiscus and Althaea arises where each original dithecous anther splits and halves diverge during monadelphous tube formation. Single theca correlates with numerous stamens compensating pollen quantity, mucilage-rich spiny pollen enhancing adhesion to insect pollinators and providing large pollen load per flower for entomophily.