Which of the following characters are mainly considered for declaring a new plant species ?

Options

A. Characters of endosperm
B. Anatomical characters
C. Physiological characters
D. Floral characters

Answer

To determine which characters are mainly considered for declaring a new plant species, we need to analyze the provided options step by step.

### Step-by-Step Solution:

1. **Understanding the Question**:
- We need to identify which characteristics are essential for declaring a new plant species.

2. **Evaluating the Options**:
- **Option 1: Characters of Endosperm**:
- Endosperm is a tissue found inside seeds of flowering plants.
- Since not all plants produce flowers, this characteristic cannot be universally applied to all plant species.
- **Conclusion**: This option is not suitable for declaring a new plant species.

3. **Option 2: Anatomical Characters**:
- Anatomical characters refer to the study of the internal structure of plants.
- While these can provide information about a plant, two different species might have similar anatomical structures, making it difficult to distinguish them.
- **Conclusion**: This option is also not a reliable factor for declaring a new plant species.

4. **Option 3: Physiological Characters**:
- Physiological characters involve the study of the functions and processes of plants.
- Similar to anatomical characters, different species might exhibit similar physiological traits, which does not help in uniquely identifying a new species.
- **Conclusion**: This option is not a main consideration for declaring a new plant species.

5. **Option 4: Floral Characters**:
- Floral characters include the structure, arrangement, and fusion of floral organs.
- These characteristics are unique to each plant species and can provide a clear distinction between different species.
- **Conclusion**: This option is the most suitable for declaring a new plant species.

### Final Answer:
The correct option for declaring a new plant species is **Floral Characters**.

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