In precious germination the spore germinates while still in the sporangium.

Answer

### Step-by-Step Solution:

1. **Definition of Precocious Germination**:
- Precocious germination refers to the process where spores begin to germinate while they are still enclosed within the sporangium. This means that the development of the spores occurs before they are released from the parent structure.

2. **Understanding the Term**:
- This phenomenon is also known as plant viviparity. Viviparity typically refers to the development of seeds or spores inside the parent plant, leading to early growth.

3. **Characteristics of Precocious Germination**:
- In precocious germination, the growth of the spores occurs inside the parent plant, which can be considered as premature germination. This is because the spores start their developmental process before they are fully detached from the parent structure.

4. **Examples of Precocious Germination**:
- A common example of precocious germination can be seen in the tomato plant. When tomatoes are harvested prematurely, one can observe white shoots or follicles, indicating that germination has already begun while the fruit was still attached to the plant.

5. **Conclusion**:
- Therefore, the statement that in precocious germination, the spore germinates while still in the sporangium is correct. This process highlights an interesting aspect of plant reproduction and development.