Tetradynamous condition of the androecium is a characteristic feature of the family :

Options

A. Brassicaceae
B. Fabaceae
C. Poaceae
D. Malvaceae

Explanation

To solve the question regarding the tetradynamous condition of the androecium, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Androecium**: The androecium is the male reproductive part of a flower, consisting of stamens. Each stamen is made up of two parts: the anther (where pollen is produced) and the filament (which supports the anther).

2. **Define Tetradynamous Condition**: In a tetradynamous condition, there are a total of six stamens in the androecium. Out of these, four stamens are longer (the long stamens) and two are shorter (the short stamens). This unequal length is a key characteristic of this condition.

3. **Identify the Families**: The question provides four options:
- A. Brassicaceae
- B. Fabaceae
- C. Poaceae
- D. Malvaceae

4. **Relate Tetradynamous Condition to Plant Families**: The tetradynamous condition is specifically known to be a characteristic feature of the Brassicaceae family, commonly referred to as the mustard family. This family includes plants like mustard, cabbage, and radish.

5. **Eliminate Other Options**:
- **Fabaceae** (Legume family) typically has a different arrangement of stamens.
- **Poaceae** (Grass family) also does not exhibit the tetradynamous condition.
- **Malvaceae** (Mallow family) has its own distinct androecium structure.

6. **Conclude the Answer**: Based on the characteristics of the androecium and the specific knowledge of plant families, we can conclude that the tetradynamous condition of the androecium is a characteristic feature of the family **Brassicaceae**.

### Final Answer:
The tetradynamous condition of the androecium is a characteristic feature of the family **Brassicaceae**.

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