Alstonia is an example for

Options

A. Polychasial cyme
B. Whorled phyllotaxy
C. Palmately compound leaf
D. Palmately lobed simple leaf

Answer

**Step-by-Step Solution:**

1. **Identify the Plant**: Alstonia is a genus of flowering plants that belongs to the family Apocynaceae.

**Hint**: Remember that family classification is crucial in botany; knowing the family helps in understanding the characteristics of the plant.

2. **Classification**: Alstonia is classified as an evergreen tree or shrub. This means it retains its leaves throughout the year.

**Hint**: Evergreen plants are important for ecosystems as they provide continuous cover and habitat.

3. **Phyllotaxy**: Alstonia exhibits a type of leaf arrangement known as "whorled phyllotaxy". In whorled phyllotaxy, multiple leaves grow from a single node.

**Hint**: Phyllotaxy refers to the arrangement of leaves on a stem; understanding different types can help in identifying plants.

4. **Leaf Structure**: The leaves of Alstonia can be described as palmately compound, meaning they radiate from a single point, resembling the fingers of a hand.

**Hint**: Look for the shape and arrangement of leaves to help distinguish between different plant species.

5. **Conclusion**: Therefore, Alstonia is an example of an evergreen tree or shrub in the Apocynaceae family, characterized by whorled phyllotaxy and palmately compound leaves.

**Hint**: Summarizing the key characteristics of a plant can aid in recalling its classification and features.

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