Which is characteristic feature of androecium of Pisum sativum

Options

A. Ten stamens, diadelphous and dithecous anthers
B. Five stamens, diadelphous and monothecous anthers
C. Five stamens, epietalous and dithecous anthers
D. Six stamens, epipetalous and dithecous anthers

Answer

To determine the characteristic feature of the androecium of Pisum sativum (garden pea), we can follow these steps:

### Step 1: Identify the Plant
Pisum sativum is commonly known as the garden pea. It belongs to the family Leguminosae (also known as Fabaceae).

**Hint:** Remember that the family name can give clues about the plant's characteristics.

### Step 2: Understand the Androecium
The androecium refers to the male reproductive part of the flower, which consists of stamens. In Pisum sativum, the number of stamens is a key characteristic.

**Hint:** Focus on the number and arrangement of stamens when discussing the androecium.

### Step 3: Count the Stamens
In Pisum sativum, there are a total of 10 stamens. This is an important feature to note.

**Hint:** When counting stamens, always check if they are fused or separate.

### Step 4: Analyze the Arrangement of Stamens
Out of the 10 stamens, 9 are fused together to form a bundle, while 1 stamen remains separate. This arrangement is referred to as "diadelphous."

**Hint:** Look for terms like "fused" or "separate" to describe stamen arrangements.

### Step 5: Describe the Anthers
The anthers of the stamens in Pisum sativum are diathecus, meaning they have two chambers. This is another characteristic feature of the androecium.

**Hint:** Anther structure can provide additional details about the reproductive system of the plant.

### Step 6: Summarize the Characteristics
The characteristic feature of the androecium of Pisum sativum is that it has 10 stamens, with 9 of them fused in a bundle (diadelphous) and 1 stamen separate. The anthers are diathecus.

**Hint:** Summarizing the features helps in recalling the information easily.

### Conclusion
Thus, the characteristic feature of the androecium of Pisum sativum is that it has 10 stamens, with 9 fused together and 1 separate, making it diadelphous.

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