Which of the following has the largest gametophyte?

Options

A. Funaria
B. Seleginella
C. Pinus
D. Oryza

Answer

To determine which of the following has the largest gametophyte among Funaria, Coelogynella, Pinus, and Oryza, we will analyze each option based on their classification and characteristics.

### Step 1: Understand the Types of Plants
- **Bryophytes**: These are non-vascular plants that include mosses, liverworts, and hornworts. The gametophyte stage is the dominant stage in their life cycle.
- **Pteridophytes**: These are vascular plants that reproduce via spores, such as ferns. They also have a gametophyte stage, but it is usually smaller than that of bryophytes.
- **Gymnosperms**: These are seed-producing plants that include conifers like Pinus. The gametophyte stage is reduced and dependent on the sporophyte.
- **Angiosperms**: These are flowering plants, such as Oryza (rice). Similar to gymnosperms, their gametophytes are also reduced and dependent on the sporophyte.

### Step 2: Analyze Each Option
- **Funaria**: This is a type of moss (a bryophyte) and has a prominent and large gametophyte stage. The gametophyte is leafy and can be quite extensive.
- **Coelogynella**: This is an orchid (a flowering plant), which means it has a reduced gametophyte.
- **Pinus**: As a gymnosperm, it has a reduced gametophyte that is not large compared to bryophytes.
- **Oryza**: This is rice, an angiosperm, and similarly has a small gametophyte.

### Step 3: Conclusion
Based on the analysis, the largest gametophyte among the given options is found in **Funaria**, which is a bryophyte (moss).

### Final Answer
**Funaria** has the largest gametophyte.