which of the following is a dioecious bryophyte?

Options

A. Riccia
B. Marchantia
C. Funaria
D. Polytrichum

Answer

To determine which of the following is a dioecious bryophyte, we can follow these steps:

1. **Understand the Terms**:
- **Dioecious**: This term refers to plants that have male and female reproductive organs on separate individuals.
- **Monoecious**: This refers to plants that have both male and female reproductive organs on the same individual.

2. **Identify Characteristics of Bryophytes**:
- Bryophytes are non-vascular plants that reproduce through spores rather than seeds or flowers.
- Most bryophytes are monoecious, meaning they have both male and female organs on the same plant.

3. **Examine the Options**:
- We need to look at the list of bryophytes provided in the question (though not explicitly listed here, we will assume common examples such as Marchantia, Polytrichum, etc.).

4. **Identify Dioecious Bryophytes**:
- Among bryophytes, the only known dioecious example is **Marchantia**.
- Other bryophytes like Polytrichum and Funaria are typically monoecious.

5. **Conclusion**:
- Since Marchantia is the only bryophyte that exhibits dioecious characteristics, it is the correct answer.

**Final Answer**: The dioecious bryophyte is **Marchantia**.

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