The smallest gymnosperm is

Options

A. pinus
B. zamia pygmia
C. ginkgo
D. cedrus

Answer

### Step-by-Step Solution:

1. **Understanding Gymnosperms**: Gymnosperms are a group of seed-producing plants that include small trees, tall trees, and shrubs. They are characterized by having naked seeds, meaning the seeds are not enclosed by a fruit.

2. **Identifying the Size of Gymnosperms**: Gymnosperms can vary significantly in size, from very tall trees like the Sequoia (redwood tree) to much smaller species.

3. **Finding the Smallest Gymnosperm**: Among the various gymnosperms, we need to identify which one is the smallest.

4. **Conclusion**: The smallest gymnosperm is **Zamia pygmaea**. This species is known for its small stature compared to other gymnosperms.

### Final Answer:
The smallest gymnosperm is **Zamia pygmaea**.

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