All the following pairing of type of aestivation and its example is incorrect, expect

Options

A. Valvate - Cassia
B. Twisted - china rose , ladyfinger, Calotropis
C. Imbricate - Cassia and Gulmohar
D. Vexillary - pea , bean , Aloe , tulip

Answer

To solve the question regarding the types of aestivation and their examples, we will analyze each pairing provided in the question. The goal is to identify the correct pairing while understanding the definitions and characteristics of each type of aestivation.

### Step-by-Step Solution:

1. **Understand Aestivation**: Aestivation refers to the arrangement of sepals and petals in a floral bud. It describes how these parts are positioned relative to each other before the flower opens.

2. **Identify Types of Aestivation**:
- **Velvet Aestivation**: In this type, the sepals or petals touch each other at the margins without overlapping.
- **Twisted Aestivation**: Here, one margin of a petal overlaps with the margin of the next petal.
- **Imbricate Aestivation**: In this arrangement, the margins of the sepals or petals overlap one another but not in a specific direction.
- **Vexillary Aestivation**: This is characterized by the largest petal (standard) overlapping the two lateral petals, which in turn overlap the two smallest interior petals.

3. **Analyze the Pairings**:
- **Velvet Aestivation - Calotropis**: This is incorrect because Calotropis exhibits imbricate aestivation.
- **Twisted Aestivation - China Rose, Ladyfinger, Cotton**: This is correct as these plants exhibit twisted aestivation.
- **Imbricate Aestivation - Gulmohar**: This is also correct as Gulmohar shows imbricate aestivation.
- **Vexillary Aestivation - Pea, Bean, Alloy, Tulip**: This is incorrect as Alloy and Tulip do not exhibit vexillary aestivation.

4. **Conclusion**: The only correct pairing among the options provided is the one that includes twisted aestivation with China Rose, Ladyfinger, and Cotton.

### Final Answer:
The correct pairing of type of aestivation and its example is **Twisted Aestivation - China Rose, Ladyfinger, Cotton**.