Which one of the following is an example for phylogenetic system of classification?

Options

A. System proposed by Hutchinson
B. System proposed by Theophrastus
C. System proposed by Bentham and Hooker
D. System proposed by Linnaeus

Answer

To determine which option represents an example of a phylogenetic system of classification, we need to analyze each of the proposed systems mentioned in the question.

### Step-by-Step Solution:

1. **Understanding Phylogenetic Classification**:
- Phylogenetic classification is based on the evolutionary relationships and common ancestry of organisms. It groups organisms according to their evolutionary history and genetic relationships.

2. **Analyzing the Options**:
- **Option A: System proposed by Hutchinson**:
- Hutchinson's system is known for its phylogenetic approach, focusing on the evolutionary relationships among plants. This is a strong candidate for the correct answer.

- **Option B: System proposed by Theophrastus**:
- Theophrastus classified plants based on their size and growth forms (herbs, shrubs, trees), which does not reflect evolutionary relationships. Therefore, this option is incorrect.

- **Option C: System proposed by Bentham and Hooker**:
- Bentham and Hooker's classification is based on natural affinities and morphological characteristics, rather than strictly on phylogenetic relationships. Thus, this option is also incorrect.

- **Option D: System proposed by Linnaeus**:
- Linnaeus's classification system was based on morphological traits and did not consider evolutionary relationships, making this option incorrect as well.

3. **Conclusion**:
- After analyzing all the options, we find that the only system that exemplifies a phylogenetic classification is the one proposed by Hutchinson.

### Final Answer:
The correct answer is **the system proposed by Hutchinson**.

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