Characteristic feature of Malvaceae family is Monothecous anthers.

Monothecous anthers are a characteristic feature of the Malvaceae family, which is a large family of flowering plants commonly known as the mallow family. The family includes many economically important plants such as cotton, hibiscus, and okra. Monothecous anthers refer to the presence of anthers with a single locule or chamber.

Here is an explanation of why monothecous anthers are a characteristic feature of the Malvaceae family:

1. Definition of Monothecous Anthers:
- Anthers are the male reproductive structures of flowers that produce pollen grains.
- Monothecous anthers have a single locule or chamber in which the pollen is produced.

2. Structure of Monothecous Anthers in Malvaceae:
- In the Malvaceae family, the anthers are typically attached to the filament by a connective tissue.
- The anthers are elongated and contain a single locule.
- The locule is filled with pollen grains.

3. Variation in Anther Structure:
- Anthers can show variation in structure across different plant families.
- In some families, anthers may have multiple locules, known as dithecous anthers.
- In Malvaceae, however, the anthers have a single locule, making them monothecous.

4. Importance of Monothecous Anthers:
- Monothecous anthers are an important characteristic for taxonomic classification.
- They help identify plants belonging to the Malvaceae family.
- Other families, such as Solanaceae, have dithecous anthers, which distinguish them from Malvaceae.

In conclusion, the characteristic feature of the Malvaceae family is monothecous anthers. This means that the anthers in this family have a single locule, distinguishing them from other families with dithecous anthers. Monothecous anthers are an important feature for taxonomic classification and help identify plants belonging to the Malvaceae family.