Lichens growing on tree bark are called
(a) Lignicolous
(b) Terricolous
(c) Corticolous
(d) Saxicolous

Options

A. Lignicolous
B. Terricolous
C. Corticolous
D. Saxicolous

Answer

To solve the question about lichens growing on tree bark, we can follow these steps:

### Step 1: Understand the Question
The question asks for the specific term used to describe lichens that grow on tree bark.

### Step 2: Analyze the Options
We have four options to consider:
- (a) Lignicolous
- (b) Terricolous
- (c) Corticolous
- (d) Saxicolous

### Step 3: Define Each Term
- **Lignicolous**: Refers to organisms that grow on wood.
- **Terricolous**: Refers to organisms that grow on soil.
- **Corticolous**: Refers to organisms that grow on the bark of trees.
- **Saxicolous**: Refers to organisms that grow on rocks.

### Step 4: Identify the Correct Option
Since the question specifically mentions lichens growing on tree bark, the correct term is "Corticolous" (option c).

### Step 5: Conclusion
Thus, lichens growing on tree bark are called **Corticolous**.

### Final Answer
(c) Corticolous

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