In a typical complete, bisexual and hypogynous flower the arrangement of floral whorls on the thalamus from the outermost to the innermost is

Options

A. calyx, corolla, androecium and gynoecien
B. calyx, corolla, gynoecium and androecium
C. gynoecium, androecium, corolla and calyx
D. androecium, gynoecium, corolla and calyx

Answer

To answer the question about the arrangement of floral whorls in a typical complete, bisexual, and hypogynous flower, we can follow these steps:

1. **Identify the Floral Whorls**: A complete flower typically has four main floral whorls: calyx, corolla, androsium, and gynoecium.

2. **Understand the Function of Each Whorl**:
- **Calyx**: This is the outermost whorl and consists of sepals. Its primary function is to protect the flower bud before it opens.
- **Corolla**: This is the second whorl, made up of petals. The corolla is often colorful and attracts pollinators.
- **Androsium**: This is the third whorl, consisting of stamens (the male reproductive part). It produces pollen.
- **Gynoecium**: This is the innermost whorl, consisting of carpels (the female reproductive part). It contains the ovary, style, and stigma.

3. **Determine the Arrangement from Outermost to Innermost**: In a hypogynous flower, the arrangement of these whorls from the outermost to the innermost is:
- **Calyx** (outermost)
- **Corolla**
- **Androsium**
- **Gynoecium** (innermost)

4. **Conclude the Answer**: Therefore, the correct sequence of floral whorls in a typical complete, bisexual, and hypogynous flower is:
- Calyx → Corolla → Androsium → Gynoecium.

### Final Answer:
Calyx → Corolla → Androsium → Gynoecium.