Explanation:

- Morphology: This is the study of form and structure in organisms. It is not specific to fungi, but rather a broader branch of biology that looks at physical attributes.

- Kalology: This term isn't widely recognized in biology. It seems to relate to aesthetics or beauty, but not directly to any formal biological study.

- Mycology: Mycology specifically focuses on the study of fungi. It looks at their genetic and biochemical properties, their taxonomy, and their use to humans in different fields.

- Virology: Virology is the study of viruses and viral diseases, not fungi.

Correct Answer: Mycology