If stamens are arranged in two whorls with antipetalous outer whorl , then the condition is

Options

A. Obdiplostamenous
B. Diplostamenous
C. Didynamous
D. Epiphyllous

Answer

To solve the question regarding the arrangement of stamens in two whorls with an antipetalous outer whorl, we need to follow these steps:

### Step-by-Step Solution:

1. **Understand the Terminology**:
- **Stamens**: The male reproductive part of a flower, consisting of an anther and a filament.
- **Whorls**: A circular arrangement of parts (like petals or stamens) around a single point.
- **Antipetalous**: This term indicates that the stamens are positioned opposite to the petals.

2. **Identify the Arrangement**:
- The question states that there are two whorls of stamens. This means there are two distinct circles of stamens.
- The outer whorl is described as antipetalous, meaning that the stamens in this whorl are positioned directly opposite to the petals.

3. **Determine the Floral Formula**:
- In floral morphology, the arrangement of stamens can be classified based on their position relative to other floral parts.
- The condition described (two whorls of stamens with the outer whorl being antipetalous) is characteristic of certain families of flowering plants.

4. **Identify the Condition**:
- The specific condition where stamens are arranged in two whorls with the outer whorl being antipetalous is known as **Didynamous** or **Tetradynamous** depending on the number of stamens in each whorl.
- However, for the specific arrangement described, it is most commonly associated with the family **Lamiaceae** (mint family).

### Final Answer:
The condition is characteristic of the **Lamiaceae** family.