A plant has an androecium with monadelphous stamens, monothecous and reniform anthers. The corolla exhibits contorted aestivation. The plant could be
A
Rauwolfia
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B
Vinca
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C
Nerium
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D
Hibiscus
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Solution
The correct option is B Hibiscus
Monadelphous stamens: filaments of all stamens are united forming a single bundle but the anthers are free. Monothecous anther: has only one anther lobe. Reniform: kidney-shaped. Contorted aestivation: type of arrangement of sepals (or petals) in which every segment is partly inner and partly outer. That is it is being overlapped by next petal, at the same time it also overlaps adjacent petal (or sepal). Best examples are petals(Corolla) of hibiscus.