What are chasmogamous flowers? Can cross-pollination occur in cleistogamous flowers? Give reasons for your answer.
Final answer Chasmogamy is a mechanism whereby the flowers open only after complete maturation. In flowers showing chasmogamy, cross pollination is favoured over self-pollination. Chasmogaous flowers are dependent on external agents of pollination. Cleistogamous flowers are small flowers which remain closed. They are self-pollinated, therefore they do not require external agents of pollination. Chasmogamy is shown by peas, hibiscus and beans. Cleistogamy is shown by Oxalis and Viola.