Select the odd one out w.r.t. proponents of phylogenetic system of classification

Options

A. Hutchinson
B. Engler & Prantl
C. Joseph Dalton Hooker
D. Takhtajan

Answer

To solve the question of selecting the odd one out with respect to proponents of the phylogenetic system of classification, we will analyze each option provided.

### Step-by-Step Solution:

1. **Identify the Proponents**:
- The question presents four names: Hutchinson, Engler and Prandtl, Joseph Dalton Hooker, and Tuck Tajan. We need to determine their contributions to the phylogenetic system of classification.

2. **Analyze Hutchinson**:
- Hutchinson is known for his work on the phylogenetic system of classification. He published a significant classification series in 1884, which contributed to the understanding of plant taxonomy.

3. **Analyze Engler and Prandtl**:
- Engler and Prandtl are also recognized for their contributions to the phylogenetic classification system. They identified 18 orders and 45 families, which aligns with the principles of phylogenetic classification.

4. **Analyze Joseph Dalton Hooker**:
- Joseph Dalton Hooker is known for his work in botany and his association with Charles Darwin. However, his classification work does not primarily focus on the phylogenetic system. Instead, it is more related to evolutionary theory and plant geography.

5. **Analyze Tuck Tajan**:
- Tuck Tajan published a book on the phylogenetic system of classification in 1950, which was significant in classifying angiosperms and gymnosperms based on specific characteristics, supporting the phylogenetic approach.

6. **Determine the Odd One Out**:
- Based on the analysis, Joseph Dalton Hooker is the odd one out. While Hutchinson, Engler and Prandtl, and Tuck Tajan contributed directly to the phylogenetic system of classification, Hooker's work is more aligned with evolutionary theory rather than phylogenetic classification.

### Conclusion:
The odd one out with respect to proponents of the phylogenetic system of classification is **Joseph Dalton Hooker**.

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