In stem, starch sheath is equivalent to -

Options

A. Pericycle
B. Endodermis
C. Bundle sheath
D. Bundle cap

Answer

### Step-by-Step Solution:

1. **Understand the Question**: The question asks for the equivalent structure of the starch sheath in the stem.

2. **Identify the Starch Sheath**: In the context of plant anatomy, the starch sheath refers to a layer of cells that store starch. This is commonly found in certain parts of the plant.

3. **Locate the Endodermis**: The endodermis is the innermost layer of the cortex in the stem. It acts as a selective barrier regulating the flow of water and nutrients.

4. **Recognize the Role of Starch in Endodermis**: The endodermis is known for the deposition of starch in its cells, which are referred to as starch sheath cells. This is where the starch storage occurs in the stem.

5. **Evaluate Other Options**:
- **Pericycle**: This layer is involved in the formation of lateral roots and does not store starch.
- **Bundle Sheath**: This is associated with vascular bundles and does not serve the function of starch storage in the stem.
- **Bundle Cap**: This is a protective layer for the vascular bundles and also does not store starch.

6. **Conclude the Answer**: Based on the information, the starch sheath in the stem is equivalent to the endodermis.

### Final Answer:
The starch sheath in the stem is equivalent to the **endodermis**.

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