Question

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

Answer 1

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.

Answer 2

Answer:

༺Chasmogamous flowers are the flowers that have open petals such that the reproductive organs are exposed to allow cross-pollination.Cleistogamous flowers are small, closed flowers with unexposed reproductive organs. Therefore, they cannot undergo cross-pollination. However, they undergo self-pollination since the stigma and anther are present near each other.༻