What is the function/role of bulliform cells in grasses ?

Explanation

### Step-by-Step Solution:

1. **Definition of Bulliform Cells**: Bulliform cells are specialized cells found in the epidermal layer of grass leaves. They are large, colorless, and often appear empty.

2. **Location**: These cells are primarily located along the veins of the leaves in grasses.

3. **Function of Bulliform Cells**: The main role of bulliform cells is to store water. Their ability to store water is crucial for the plant's survival, especially in conditions where water is scarce.

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