Sporogonium of Polytrichum possesses

Options

A. Foot, seta and capsule
B. Ribbon shaped thallus
C. Cordate prothallus
D. Fleshy thallus

Answer

To answer the question about what the sporogonium of Polytrichum possesses, we can break down the information step by step.

### Step-by-Step Solution:

1. **Identify the Organism**:
- Polytrichum is a genus of moss, which classifies it as a bryophyte. Bryophytes are non-vascular plants that include mosses, liverworts, and hornworts.

2. **Understand Sporogonium**:
- The sporogonium is the sporophyte generation of the plant. In bryophytes, the sporophyte is typically dependent on the gametophyte for nutrition and support.

3. **Parts of the Sporogonium**:
- The sporogonium of Polytrichum is composed of three main parts:
- **Foot**: This part anchors the sporophyte to the gametophyte and absorbs nutrients.
- **Seta**: This is the stalk that supports the capsule. It elevates the capsule for spore dispersal.
- **Capsule**: This is the spore-bearing structure where spores are produced and released.

4. **Evaluate the Options**:
- The options provided are:
- A) Foot, seta, capsule
- B) Ribbon-shaped thallus
- C) Corded prothallus
- D) Fleshy thallus
- Based on the parts identified, the correct answer is option A, which includes the foot, seta, and capsule.

### Final Answer:
The sporogonium of Polytrichum possesses **foot, seta, and capsule**.

---