Select the incorrect pair.

Options

A. Indigofera - Sepals five (Gamosepalous corolla (Vexillary aestivation)
B. Brinjal - Seplas five united (persistent, valvate aestivation)
C. Asparagus - Sepals three often united into tube (valvate aestivation)
D. Colchicine - Perianth present tepals six (valvate aestivation)

Answer

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

### Step-by-Step Solution:

1. **Understanding the Options**:
- The question asks us to identify an incorrect pair related to plant families and their floral characteristics.

2. **Analyzing Option 1: Indigofera**:
- Indigofera belongs to the family **Fabaceae**.
- It has **five sepals** that are **fused**.
- The corolla exhibits **vexillary aestivation** with one large standard petal, two lateral petals, and two keel petals.
- **Conclusion**: This option is correct.

3. **Analyzing Option 2: Brinjal (Eggplant)**:
- Brinjal belongs to the family **Solanaceae**.
- It has **five sepals** that are **united** and **persistent**.
- The petals show **valvet aestivation**, where the margins of the petals touch but do not overlap.
- **Conclusion**: This option is correct.

4. **Analyzing Option 3: Liliaceae (General)**:
- Both options refer to plants in the family **Liliaceae**.
- It states that there are **three sepals** often united into a tube and mentions **valvet aestivation**.
- However, in Liliaceae, the sepals and petals are not distinct; they are collectively referred to as **tepals**.
- The description incorrectly states that only sepals are united into a tube, which is misleading.
- **Conclusion**: This option is incorrect.

5. **Analyzing Option 4: Colchicine**:
- Colchicine (Colchicum autumnale) also belongs to the family **Liliaceae**.
- It has **six tepals** and exhibits **valvet aestivation**.
- **Conclusion**: This option is correct.

### Final Answer:
The incorrect pair is **Option 3**.