A plant has an androecium with manadelphous stamens, monothecous and reniform anthers. The corolla exhibits contorted aestivation. The plant could be

Options

A. Nerium
B. Rauwolfia
C. Hibiscus
D. Lathyrus

Answer

To solve the question regarding the characteristics of a plant with specific floral features, we need to analyze the terms provided and identify the correct plant from the options given.

### Step-by-Step Solution:

1. **Understanding Androecium Characteristics**:
- The term "manadelphous" refers to stamens that are fused at their filaments, forming a single bundle. This means that all the stamens are connected together.
- "Monothecous" indicates that the anthers have only one theca (pollen sac). This means each anther produces pollen from a single chamber.
- "Reniform" describes the shape of the anthers, which are kidney-shaped.

2. **Analyzing Corolla Characteristics**:
- The term "contorted aestivation" refers to the arrangement of petals (corolla) in which the margins of the petals overlap in a twisted manner. This is a specific type of floral arrangement.

3. **Identifying the Plant**:
- Now, we need to match these characteristics with the options provided:
- **Option A: Nerium** - Typically has different floral structures and does not match the described features.
- **Option B: Rovalpia** - This plant does not exhibit the specified floral characteristics.
- **Option C: Hibiscus** - Known for having manadelphous stamens, monothecous anthers, reniform anthers, and contorted aestivation in its petals.
- **Option D: (Not specified)** - Likely does not match the characteristics either.

4. **Conclusion**:
- Based on the analysis, the plant that fits all the provided characteristics is **Hibiscus**. Therefore, the correct answer is **Option C**.