Which one of the following is matched incorrectly

Options

A. Pinus-Coralloid roots
B. Cedrus-Branched stem
C. Sequoia-Tap roots
D. Cycas-Unbranched stem.

Answer

To solve the question "Which one of the following is matched incorrectly?" we will analyze each option provided in the question.

### Step-by-Step Solution:

1. **Identify the Options**: The question presents several options, each claiming a specific plant characteristic. We need to evaluate each option to determine if it is matched correctly or incorrectly.

2. **Evaluate Option 1**:
- The statement says "Pinus has coralloid roots."
- Coralloid roots are known to be associated with Cycas, not Pinus.
- Pinus typically has mycorrhizal roots, which are a type of root system that forms a symbiotic association with fungi.
- Therefore, this option is incorrectly matched.

3. **Evaluate Option 2**:
- The statement says "Cedrus has a branched stem."
- This is correct as both Cedrus and Pinus have branched stems, while Cycas has an unbranched stem.
- Therefore, this option is correctly matched.

4. **Evaluate Option 3**:
- The statement says "Sequoia has a taproot system."
- This is correct as Sequoia, known as the redwood tree, typically has a taproot system.
- Therefore, this option is correctly matched.

5. **Evaluate Option 4**:
- The statement says "Cycus has unbranched stems."
- This is also correct as Cycas typically has unbranched stems.
- Therefore, this option is correctly matched.

6. **Conclusion**: After evaluating all options, we find that Option 1 is the only one that is incorrectly matched. Pinus does not have coralloid roots; it has mycorrhizal roots.

### Final Answer:
The incorrectly matched option is **Option 1: Pinus has coralloid roots.**

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