The book written by Theophrastus is

Options

A. Historium Plantarum
B. Historia Botane
C. Botane
D. Systema Naturae

Answer

To answer the question, "The book written by Theophrastus is," we can follow these steps:

### Step-by-Step Solution:

1. **Identify Theophrastus**: Theophrastus is known as the "Father of Botany." He made significant contributions to the field of botany and classification of plants.

2. **Understand His Contributions**: He proposed an artificial system of classification based on morphological characteristics of plants. This system categorized plants into different groups based on their physical traits.

3. **Recall His Notable Work**: Theophrastus authored a significant book on plants, which is known for its detailed descriptions and classifications.

4. **Name of the Book**: The book written by Theophrastus is titled "Historia Plantarum," which translates to "History of Plants."

5. **Select the Correct Option**: From the options provided, the correct answer is "Historia Plantarum."

### Final Answer:
The book written by Theophrastus is "Historia Plantarum."

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