Poophyra & dictyota are belonged to which algal class respectively

Answer

To determine the algal classes to which Porphyra and Dictyota belong, we can follow these steps:

### Step-by-Step Solution:

1. **Identify Porphyra**:
- Porphyra is a genus of seaweed that is typically found in cold, shallow seawater.
- It is characterized by its branched filaments.

2. **Classify Porphyra**:
- Porphyra is classified under the group known as red algae.
- The scientific classification for red algae is Rhodophyta (or Rhodophyceae).

3. **Identify Dictyota**:
- Dictyota is commonly found in the European Atlantic coasts and the Mediterranean Sea.
- It is known for its long, dichotomously branched, flattened structure and brown color.

4. **Classify Dictyota**:
- Dictyota is classified as a brown algae.
- The scientific classification for brown algae is Phaeophyta (or Phaeophyceae).

5. **Final Answer**:
- Therefore, Porphyra belongs to the class of red algae (Rhodophyta), and Dictyota belongs to the class of brown algae (Phaeophyta).

### Summary:
- **Porphyra**: Red Algae (Rhodophyta)
- **Dictyota**: Brown Algae (Phaeophyta)