Select out incorrect statement.

Options

A. Herbaria serve as quick referral system in taxonomy
B. Monographs contains information on any one taxon
C. Manual provide the index to the plant species found in particular area
D. Separate taxonomic Keys are required for each taxonomic category.

Answer

To solve the question of selecting the incorrect statement, we will analyze each statement provided in the question step by step.

### Step 1: Analyze the First Statement
- **Statement**: "Hervéria serves as a quick referral system in taxonomy."
- **Analysis**: This statement is correct. Hervéria (herbarium) contains essential information for identifying plants, such as the name of the collector, date of collection, local and English names, and the place of collection. This information allows for quick reference in taxonomy.

### Step 2: Analyze the Second Statement
- **Statement**: "Monograph contains information of any one taxon."
- **Analysis**: This statement is also correct. A monograph is a detailed written study of a single taxon, which includes all relevant information about that particular taxonomic group.

### Step 3: Analyze the Third Statement
- **Statement**: "Manual provides the index of plant species found in a particular Hervéria."
- **Analysis**: This statement is incorrect. The correct term for an index of plant species found in a particular area is "flora," not "manual." A flora provides a comprehensive listing of plant species in a specific region.

### Step 4: Analyze the Fourth Statement
- **Statement**: "Taxonomic keys are required for each taxonomic category."
- **Analysis**: This statement is correct. Taxonomic keys are tools used to identify organisms based on their characteristics and are necessary for each taxonomic category.

### Conclusion
After analyzing all statements, the incorrect statement is the third one: "Manual provides the index of plant species found in a particular Hervéria." The correct term should be "flora."

### Final Answer
The incorrect statement is **Option 3**.

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