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The floral formula for Brassicaceae fami...

The floral formula for Brassicaceae family is

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To determine the floral formula for the Brassicaceae family, we will break down the characteristics of the flower step by step. ### Step-by-Step Solution: 1. **Identify the Symmetry of the Flower**: - The flowers in the Brassicaceae family are **actinomorphic**, meaning they are radially symmetrical. This means the flower can be divided into similar halves through multiple planes. - **Hint**: Look for symmetry in the flower structure; actinomorphic flowers have uniformity in their shape. 2. **Determine the Sexuality of the Flower**: - The flowers are **bisexual**, meaning they contain both male (stamens) and female (pistils) reproductive organs. - **Hint**: Check if the flower has both stamens and pistils; if yes, it is bisexual. 3. **Count the Sepals (Calyx)**: - The calyx consists of **4 sepals** that are typically arranged in two pairs (2+2). - **Hint**: Count the outermost whorl of the flower; if there are 4 sepals arranged in pairs, note that down. 4. **Count the Petals (Corolla)**: - The corolla is made up of **4 petals**, which are often arranged in a cross shape (characteristic of mustard flowers). - **Hint**: Look at the next whorl inside the calyx; if there are 4 petals, you have identified the corolla correctly. 5. **Count the Stamens (Androecium)**: - The androecium consists of **6 stamens**, typically arranged as 2 outer and 4 inner (2+4). - **Hint**: Count the male reproductive parts; if you find 6, with a specific arrangement of 2 and 4, that’s your androecium. 6. **Identify the Gynoecium**: - The gynoecium is composed of **2 carpels** that are fused (syncarpous) and the ovary is **superior**. - **Hint**: Look for the female reproductive part; if it has 2 fused carpels and is positioned above the other floral parts, it’s syncarpous and superior. ### Floral Formula: Putting all these observations together, the floral formula for the Brassicaceae family can be expressed as: - **Floral Formula**: **\(\text{Actinomorphic} \; \text{Bisexual} \; \text{Calyx: } 2 + 2 \; \text{Corolla: } 4 \; \text{Androecium: } 2 + 4 \; \text{Gynoecium: } 2 \; \text{(Superior)}\)** ### Conclusion: The correct floral formula for the Brassicaceae family is represented as: - **Floral Formula**: \( \text{(Actinomorphic, Bisexual, Calyx: } 2 + 2, \text{ Corolla: } 4, \text{ Androecium: } 2 + 4, \text{ Gynoecium: } 2 \text{ (Superior)}) \)
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