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C(xx4)A(2+4) condition is characteristic...

`C_(xx4)A_(2+4)` condition is characteristic to

A

Asteraceae

B

Brassicaceae

C

Fabaceae

D

Lillaceae

Text Solution

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The correct Answer is:
To solve the question regarding the floral formula `C4 A2+4`, we will analyze the floral formulas of the given plant families step by step. ### Step-by-Step Solution: 1. **Understanding the Floral Formula**: - The floral formula `C4 A2+4` indicates that there are 4 petals (C4) and the stamens are in two groups: 2 free and 4 fused (A2+4). 2. **Identifying the Families**: - We need to compare this floral formula with the known floral formulas of the families provided: Asteraceae, Brassicaceae, Fabaceae, and Liliaceae. 3. **Analyzing Asteraceae**: - The floral formula for Asteraceae is typically `K5 C5 A5 G2`. - This does not match `C4 A2+4` since it has 5 petals and 5 stamens. 4. **Analyzing Brassicaceae**: - The floral formula for Brassicaceae is `K2+2 C4 A2+4 G2`. - This matches perfectly with `C4 A2+4`, as it has 4 petals and 2 free stamens plus 4 fused stamens. 5. **Analyzing Fabaceae**: - The floral formula for Fabaceae is `K5 C1+2+2 A9+1 G1`. - This does not match `C4 A2+4` since it has 5 petals and 10 stamens. 6. **Analyzing Liliaceae**: - The floral formula for Liliaceae is `P3+3 A3+3 G3`. - This does not match `C4 A2+4` since it has 3 petals and 3 stamens. 7. **Conclusion**: - The only family that matches the floral formula `C4 A2+4` is **Brassicaceae**. ### Final Answer: The condition `C4 A2+4` is characteristic of the **Brassicaceae** family. ---
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