Flower arrangement in racemose head is

Options

A. centripetal
B. basipetal
C. acropetal
D. irregular

Answer

To answer the question about the flower arrangement in a racemose head (also known as a Capitulum), we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Type of Inflorescence**:
- The racemose head is a type of inflorescence known as a Capitulum. This is characteristic of the family Compositae (Asteraceae).

2. **Understand the Structure**:
- In a racemose head, what appears to be a single flower is actually a cluster of many small flowers (florets). For example, in a sunflower, the outer petals are called ray florets, while the inner part consists of disc florets.

3. **Recognize the Involucre**:
- The inflorescence has a structure called an involucre, which consists of one or more whorls of bracts that surround the cluster of flowers.

4. **Examine the Peduncle**:
- The peduncle of a racemose head is flattened and forms a structure known as the receptacle, which supports the arrangement of flowers.

5. **Identify the Arrangement of Flowers**:
- The flowers in a racemose head are arranged in a centripetal manner, meaning that the younger flowers are located towards the center of the inflorescence, while the older flowers are found towards the outer edges.

6. **Choose the Correct Answer**:
- Based on the arrangement, the correct answer to the question is that the flower arrangement in a racemose head is of the centripetal type.

### Final Answer:
The flower arrangement in a racemose head is **centripetal**.

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