Which is characteristics of Funaria

Options

A. Scalariform conjugation
B. Xylem
C. Elaters
D. Peristome.

Answer

### Step-by-Step Solution

1. **Identify the Organism**: Funaria is a genus of moss, specifically known for its common species Funaria hygrometrica, also referred to as cord moss due to its twisted seta.

2. **Understand the Structure**: Funaria has root-like structures called rhizoids, which help anchor the moss to the substrate.

3. **Key Characteristic**: The most notable characteristic of Funaria is the presence of peristomal teeth. These are structures located below the operculum (the lid of the capsule).

4. **Description of Peristomal Teeth**: Funaria has two rows of peristomal teeth, which are long, conical structures. Each row contains 16 teeth, resulting in a total of 32 teeth.

5. **Eliminate Incorrect Options**:
- **Scleriform Conjugation**: This is a characteristic of Spirogyra, not Funaria.
- **Xylem**: While xylem is present in many plants, it is not a defining characteristic of Funaria.
- **Elators**: These are sterile diploid cells found in liverworts and hornworts, not in mosses like Funaria.

6. **Conclusion**: The correct characteristic of Funaria is the presence of peristomal teeth, making option 4 the correct answer.