Question

What are chasmogamous flowers? Can cross-pollination occur in cleistogamous flowers? Give reasons for your answer.

Answer 1

Chasmogamous flowers have exposed anthers and stigma as they open at maturity.

Whereas the cleistogamous flowers never open.Hence self pollination becomes inevitable in cleistogamous flowers.

Cross-pollination cannot occur in cleistogamous flowers as they don't open at all. So, their anthers and stigma remain inaccessible. However, they do produce seeds through self-pollination.