`120^(@)` phyllotaxy is found in

Options

A. Distichous
B. Tristichous
C. Pentastichous
D. Octastichous.

Answer

To solve the question regarding the phyllotaxy with an angle of 120 degrees, follow these steps:

### Step-by-Step Solution:

1. **Understand Phyllotaxy**:
- Phyllotaxy refers to the arrangement of leaves on a stem or branch. It is important to know the different types of phyllotaxy to answer the question correctly.

2. **Identify the Types of Phyllotaxy**:
- There are four main types of phyllotaxy:
- **Diastichous**: 2 leaves per circle (180 degrees)
- **Tristichous**: 3 leaves per circle (120 degrees)
- **Pentastichous**: 5 leaves in 2 circles (144 degrees)
- **Octastichous**: 8 leaves in 3 circles (135 degrees)

3. **Calculate the Angles**:
- For each type, calculate the angle between the leaves:
- Diastichous: 360 degrees / 2 = 180 degrees
- Tristichous: 360 degrees / 3 = 120 degrees
- Pentastichous: (360 degrees * 2) / 5 = 144 degrees
- Octastichous: (360 degrees * 3) / 8 = 135 degrees

4. **Match the Given Angle**:
- The question specifically asks for the phyllotaxy that corresponds to an angle of 120 degrees. From the calculations, we see that the **Tristichous** arrangement has an angle of 120 degrees.

5. **Conclusion**:
- Therefore, the answer to the question "120 degrees phyllotaxy is found in" is **Tristichous**.

### Final Answer:
**Tristichous**