Collar like outgrowth arising from the base of ovule and forming is a sort of third integument is known as (A) caruncle (B) Aril (C) Coma (D) Operculum

Options

A. caruncle
B. aril
C. coma
D. operculum

Answer

To solve the question regarding the collar-like outgrowth arising from the base of an ovule that forms a sort of third integument, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding the Question**: The question asks for a specific term that describes a collar-like outgrowth at the base of an ovule, which acts as a third integument.

2. **Analyzing the Options**:
- **Option A: Caruncle** - A caruncle is a fleshy outgrowth from the micropyle of the seed, but it does not specifically refer to a collar-like structure.
- **Option B: Aril** - An aril is defined as a collar-like outgrowth from the base of an ovule and is indeed considered a sort of third integument.
- **Option C: Coma** - A coma refers to a tuft of hairs at the tip of seeds, which does not relate to the structure in question.
- **Option D: Operculum** - An operculum is a cap-like structure found in some flowering plants and mosses, not related to the ovule.

3. **Identifying the Correct Answer**: Based on the definitions and descriptions of the options, option B, Aril, is the correct answer as it matches the description given in the question.

4. **Final Answer**: The collar-like outgrowth arising from the base of the ovule and forming a sort of third integument is known as **(B) Aril**.