In fern, spores are formed in

Options

A. Sporangium
B. Oogonium
C. Archegonium
D. Stomium

Answer

To solve the question "In fern, spores are formed in," we will analyze the options provided and determine the correct answer step by step.

### Step 1: Understand the structure of ferns
Ferns are a type of plant classified as pteridophytes. They have a complex life cycle that includes both a sporophyte and a gametophyte stage. The sporophyte is the dominant stage in ferns.

**Hint:** Remember that ferns belong to the group of plants known as pteridophytes, which reproduce via spores.

### Step 2: Identify the reproductive structures
In ferns, spores are produced in specialized structures. The options given are:
- Sporangium
- Oogonium
- Archegonium
- Stomium

**Hint:** Focus on the terms related to spore production and reproductive structures in ferns.

### Step 3: Analyze each option
- **Sporangium:** This is the structure where spores are produced. In ferns, sporangia can be found on the underside of leaves and are often grouped together in clusters called sori.
- **Oogonium:** This is a structure that produces female gametes (eggs) in some plants, but it is not involved in spore production in ferns.
- **Archegonium:** This is the female reproductive organ in ferns that produces eggs, similar to the oogonium, and does not produce spores.
- **Stomium:** This refers to a part of the sporangium that helps in the release of spores but is not the structure where spores are formed.

**Hint:** Identify which of these structures is specifically responsible for the formation of spores.

### Step 4: Conclusion
Based on the analysis, the correct answer is **sporangium**. In ferns, spores are formed in sporangia.

**Final Answer:** In fern, spores are formed in **sporangium**.