The pollen tube carrying the male gametes grows towards archegonia in the ovules and discharge their contents near the mouth of the archegonia in

Options

A. Pteris
B. Triticum
C. Solanum
D. Ginkgo

Answer

To solve the question regarding which plant has pollen tubes that carry male gametes towards archegonia and discharge their contents near the mouth, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Question**: The question is asking about the process where pollen tubes grow towards archegonia in ovules and release male gametes.

2. **Identify the Options**: The options provided are:
- Teres
- Triticum
- Solanum
- Ginkgo

3. **Classify the Plants**:
- **Teres**: This is a pteridophyte (a type of fern).
- **Triticum**: This is a genus of plants that includes wheat, classified as angiosperms.
- **Solanum**: This is a genus that includes plants like tomatoes and potatoes, also classified as angiosperms.
- **Ginkgo**: This is a gymnosperm, specifically Ginkgo biloba.

4. **Recall the Characteristics of Archegonia**: Archegonia are the female reproductive structures found in certain plant groups. They are primarily associated with gymnosperms and some pteridophytes.

5. **Determine Where Pollen Tubes Discharge**: In gymnosperms, the pollen tube grows towards the archegonia and discharges male gametes near the mouth of the archegonia. This is a characteristic feature of gymnosperms.

6. **Identify the Correct Answer**: Among the options, only Ginkgo is a gymnosperm. Therefore, it is the only plant that matches the description provided in the question.

### Conclusion:
The correct answer is **Ginkgo**.

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