Select the odd one out w.r.t. ruminate endosperm.

Options

A. Maize
B. Passiflora
C. Annona
D. Myristica

Answer

To solve the question of selecting the odd one out with respect to ruminate endosperm, we will analyze each option given in the question: mace, Passiflora, Anona, and Myristica.

### Step-by-Step Solution:

1. **Understanding Ruminate Endosperm**:
- Ruminate endosperm is a type of endosperm characterized by the presence of inward projections or ingrowths of the seed coat into the endosperm. This condition is primarily found in certain plant families.

2. **Identifying the Plant Families**:
- Ruminate endosperm is commonly found in the following families:
- Anonaceae (e.g., Anona)
- Myristicaceae (e.g., Myristica)
- Rubiaceae
- Archaeaceae
- Palmaceae

3. **Analyzing Each Option**:
- **Mace**: This is derived from the nutmeg tree (Myristica fragrans), which belongs to the Myristicaceae family. It exhibits ruminate endosperm.
- **Passiflora**: This genus includes passion fruits and is part of the Passifloraceae family. It does not typically exhibit ruminate endosperm.
- **Anona**: This belongs to the Anonaceae family and is known for having ruminate endosperm.
- **Myristica**: This also belongs to the Myristicaceae family and exhibits ruminate endosperm.

4. **Determining the Odd One Out**:
- From the analysis, we can see that:
- Mace, Anona, and Myristica all exhibit ruminate endosperm.
- Passiflora does not belong to the families that exhibit ruminate endosperm.

5. **Conclusion**:
- Therefore, the odd one out with respect to ruminate endosperm is **Passiflora**.

### Final Answer:
Passiflora is the odd one out with respect to ruminate endosperm.