Angular collenchyma is found in

Options

A. Solanum
B. Cucurbita
C. Lactuca
D. 1 and 2

Answer

### Step-by-Step Solution:

1. **Understanding Angular Collenchyma**:
- Angular collenchyma is a type of plant tissue characterized by cells that are elongated and have irregularly thickened primary cell walls. This thickening occurs at the angles or corners where several cells meet.

2. **Location of Angular Collenchyma**:
- Angular collenchyma is typically found at the periphery of herbaceous stems, in petioles, and in the ribs of some leaves. It can also be present in floral parts, fruits, and aerial roots of certain plants.

3. **Types of Collenchyma**:
- There are four types of collenchyma: angular, lamellar, lacunar, and annular. The question specifically asks about the angular type.

4. **Identifying Examples**:
- The thickening in angular collenchyma occurs at the angles of the cells. Examples of plants where angular collenchyma can be found include the petioles of Cucurbita (squash) and Beta (beet).

5. **Evaluating the Options**:
- The options given are:
1. Solanum
2. Cucurbita
3. Lactuca
4. Both Solanum and Cucurbita
- Since angular collenchyma is specifically mentioned to be present in Cucurbita, we can conclude that this is the correct answer.

6. **Final Answer**:
- The correct answer to the question "Angular collenchyma is found in" is **Cucurbita**.