The lateral petals of vexillary corolla are called
(a) Vexilla
(b) Alae
(c) Carina
(d) Both b and c

Options

A. Vexilla
B. Alae
C. Carina
D. Both B and C.

Answer

To solve the question regarding the lateral petals of vexillary corolla, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Structure of Vexillary Corolla**:
- A vexillary corolla is a specific arrangement of petals in some flowering plants, resembling a butterfly. It consists of five petals arranged in a particular way.

2. **Identify the Types of Petals**:
- In a vexillary corolla, there are typically:
- One large posterior superior petal, known as the **vexillum** (or standard).
- Two anterior inferior petals, which are referred to as the **carina** (or keel).
- Two lateral petals, which are the focus of the question.

3. **Determine the Name of Lateral Petals**:
- The lateral petals in a vexillary corolla are known as **wings**. However, they also have another name, which is **alae**.

4. **Analyze the Options Given**:
- (a) Vexilla - This refers to the vexillum, not the lateral petals.
- (b) Alae - This is one of the names for the lateral petals.
- (c) Carina - This refers to the anterior inferior petals, not the lateral petals.
- (d) Both b and c - This includes alae but incorrectly includes carina.

5. **Select the Correct Answer**:
- The correct answer is (b) Alae, as it specifically refers to the lateral petals of the vexillary corolla.

### Final Answer:
(b) Alae