What are chasmogamous flowers? Can cross-pollination occur in cleistogamous
flowers? Give reasons for your answer.
There are two types of flowers present in plants namely Oxalis and Viola -
chasmogamous and cleistogamous flowers. Chasmogamous flowers have exposed
anthers and stigmata similar to the flowers of other species.
Cross-pollination cannot occur in cleistogamous flowers. This is because
cleistogamous flowers never open at all. Also, the anther and the stigma lie
close to each other in these flowers. Hence, only self-pollination is possible
in these flowers