Which term refers to "bark" in Latin?

The term that refers to "bark" in Latin is "cortex." In botanical terminology, "cortex" specifically denotes the outermost layers of a plant stem or root, which include the bark in woody plants. This term is derived from Latin, where it directly correlates to the protective and supportive layers surrounding the inner tissues of the plant.

Understanding the role of the cortex is essential in botany, as it plays a significant part in functions such as storage, transport of substances, and protection from environmental hazards. In addition to its straightforward meaning of "bark," the term is widely used in various botanical contexts to describe the anatomy of plant structures.

The other terms provided, while related to the study of plants or plant biology, do not accurately represent the term for "bark" in Latin. Therefore, "cortex" stands out as the correct choice in this context.