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31/12/2021 6:50 pm
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In the figure given below, the plant bears two different types of flowers marked ‘A’ and ‘B. Identify the types of flowers and state the type of pollination that will occur in them.
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31/12/2021 6:51 pm
‘A’ is chasmogamous flower while ‘B’ is cleistogamous flower. A bisexual flower which normally open is called chasmogamous flower. Cleistogamous flowers do not open at all.
Cleistogamous flowers are invariably autogamous as there is no chance of cross-pollen landing on the stigma. In a normal flower which opens and exposes the anthers and stigma complete autogamy is rather rare. Chasmogamous flower may show autogamy, geitonogamy or xenogamy.