Difference Between Chasmogamous and Cleistogamous

Chasmogamous refers to the production of flowers that open, so as to expose the reproductive organs and allow cross-pollination, while cleistogamous refers to the condition of having small, unopened, self-pollinating flowers, usually in addition to showier flowers.

1. What is Chasmogamous and Cleistogamous?
2. What is Chasmogamous and example?
3. How are Cleistogamous and Chasmogamous flowers different from each other give an example for each?
4. What are Cleistogamous flowers give an example?
5. What is the advantage of Cleistogamous flower?
6. What is Autogamy and Allogamy?
7. Is commelina a Chasmogamous?
8. What does Xenogamy mean?
9. What is Autogamy and Geitonogamy?
10. Why Cleistogamous flowers are invariably Autogamous?
11. Why do some plants have both Chasmogamous and Cleistogamous flowers?
12. What is Cleistogamous flowers write their significance?

What is Chasmogamous and Cleistogamous?

Cleistogamous flowers. Chasmogamous flowers open at maturity. Cleistogamous flowers do not open and remain in the bud state. Chasmogamous flowers are usually cross-pollinated (and sometimes self-pollinated). Cleistogamous flowers can only carry out self-pollination.

What is Chasmogamous and example?

Chasmogamy, is a plant reproductive mechanism in which pollination occurs in chasmogamous flowers. Chasmogamous flowers are commonly showy with open petals encircling exposed reproductive parts. Chasmogamous stems from Greek for "open marriage", named after the open arrangement of floral structures.

How are Cleistogamous and Chasmogamous flowers different from each other give an example for each?

Hint: Chasmogamous and cleistogamous are two terms that explain the position of reproductive structures in flowers.
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Complete Answer:

What are Cleistogamous flowers give an example?

Cleistogamy is a type of automatic self-pollination of certain plants that can propagate by using non-opening, self-pollinating flowers. The flowers are intersexual. They remain closed causing self-pollination. Examples: Viola, Oxalis, Commelina, Cardamine.

What is the advantage of Cleistogamous flower?

The principal advantage of cleistogamy is that it requires fewer plant resources to produce seeds than does chasmogamy, because development of petals, nectar and large amounts of pollen is not required. This efficiency makes cleistogamy particularly useful for seed production on unfavorable sites or adverse conditions.

What is Autogamy and Allogamy?

From Wikipedia, the free encyclopedia. Allogamy or cross-fertilization is the fertilization of an ovum from one individual with the spermatozoa of another. By contrast, autogamy is the term used for self-fertilization. In humans, the fertilization event is an instance of allogamy.

Is commelina a Chasmogamous?

These flowers are usually self-pollinated. ... On the maturation and bursting of anther, pollen grains come in contact with the stigma for the purpose of pollination. In Helianthus (sunflower), Rosa (rose) and Gossypium (cotton), flowers are chasmogamous. So, the correct answer is option B, Commelina.

What does Xenogamy mean?

: fertilization by cross-pollination especially : cross-pollination between flowers on different plants — compare geitonogamy.

What is Autogamy and Geitonogamy?

Autogamy:Autogamyisthefertilizationofaflowerbypollenfromthesameflower. Geitonogamy:Geitonogamyisthefertilizationofaflowerbypollenfromanotherfloweronthesameplant.

Why Cleistogamous flowers are invariably Autogamous?

While, in Cleistogamous flower the anthers and stigma lie close to each other with in the closed flowers. ... Thus, these flowers are invariably autogamous as there is no chance of cross-pollen landing on the stigma.

Why do some plants have both Chasmogamous and Cleistogamous flowers?

To promote cross-pollination, chasmogamous flowers often have strikingly colored petals and nectar guides/nectaries to attract and reward pollinators. The closed morphology of cleistogamous flowers hinders them from exposing their reproductive organs and forces self-pollination.

What is Cleistogamous flowers write their significance?

Cleistogamy is a kind of automatic self-pollination of certain plants. Cleistogamous flowers do not open at all. Therefore, pollination is carried out when anther matures to release pollen grain. As soon as pollen grain lands on the stigma, it will lead to fertilization. For example - Viola.