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Correct statement for Euphorbia? (1) Le...

Correct statement for Euphorbia?
(1) Leaves modified in to spines
(2)Stem modified into leaf like organ
(3)Cyathium inflorescence
(4) Ratio of male and female flowers is one : many respectively

A

I, II, III and IV

B

I, II and III

C

I and II

D

None of these

Text Solution

AI Generated Solution

The correct Answer is:
To determine the correct statements regarding Euphorbia, let's analyze each option step by step: 1. **Leaves modified into spines**: - In many species of Euphorbia, particularly in the genus Euphorbia, the leaves are indeed modified into spines. This adaptation helps the plant reduce water loss and deter herbivores. - **Hint**: Think about how plants adapt to their environment, especially in arid conditions. 2. **Stem modified into leaf-like organ**: - This statement is not accurate for Euphorbia. While Euphorbia does have some species where the stem takes on a leaf-like appearance (like in the case of some succulent species), the primary modification is that the leaves are reduced to spines. - **Hint**: Consider the primary functions of stems and leaves in plants. 3. **Cyathium inflorescence**: - Euphorbia is known for its unique inflorescence called cyathium. This structure is characteristic of the genus and consists of a cluster of male flowers surrounding a single female flower. - **Hint**: Look for specific inflorescence types that are unique to certain plant families. 4. **Ratio of male and female flowers is one: many respectively**: - This statement is incorrect. In Euphorbia, the ratio is actually many male flowers surrounding one female flower. Therefore, the correct ratio is many: one, not one: many. - **Hint**: Think about how flower arrangements can affect reproduction in plants. **Final Conclusion**: The correct statements for Euphorbia are: - (1) Leaves modified into spines - (3) Cyathium inflorescence Thus, the correct answer is options 1 and 3. ### Summary of Correct Statements: - **(1)** Leaves modified into spines. - **(3)** Cyathium inflorescence.
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