The wrong pair in the following is

Options

A. Pyrus-Rosaceae
B. Oryza-Poaceae
C. Citrus-Palmaceae
D. Artocarpus-Moraceae

Answer

To identify the wrong pair among the given options, we will analyze each pair based on the characteristics of the plants and their respective families.

### Step-by-Step Solution:

1. **Identify the First Pair: Pyrus and Rosaceae**
- Pyrus refers to the pear plant.
- The family Rosaceae is known for having members with thorns, spines, or prickles.
- Pyrus does exhibit these characteristics.
- **Conclusion:** This pair is correct.

2. **Identify the Second Pair: Oriza and Poaceae**
- Oriza refers to rice.
- The Poaceae family (also known as Gramineae) includes grasses and is characterized by perennial herbs.
- Oriza is indeed a perennial herb and belongs to this family.
- **Conclusion:** This pair is correct.

3. **Identify the Third Pair: Citrus and Rutaceae**
- Citrus refers to citrus fruits like oranges and lemons.
- The Rutaceae family includes medium-sized shrubs and is known for aromatic oil glands.
- Citrus plants are indeed classified under the Rutaceae family.
- **Conclusion:** This pair is correct.

4. **Identify the Fourth Pair: Arthrocarpus and Moraceae**
- Arthrocarpus is a genus that includes certain types of trees.
- The Moraceae family is known for having tap roots and includes shrubs and trees.
- Arthrocarpus does fit within the characteristics of the Moraceae family.
- **Conclusion:** This pair is correct.

5. **Final Evaluation:**
- After analyzing all pairs, we find that the third pair (Citrus and Rutaceae) is actually correct, which means the initial assumption of it being incorrect was wrong.
- Therefore, the wrong pair is not present in the options provided.

### Final Answer:
The wrong pair in the following is: **None of the pairs are incorrect.**