Somewhat unclear/wrong information about paths and modules

In chapter Modules / Filesystem Hierarchy there is:

mod garden;

This tells Rust that the garden module content is found at src/garden.rs. Similarly, a garden::vegetables module can be found at src/garden/vegetables.rs.

Which might imply that

mod garden::vegetables;

can be used, which is not true, to use such layout:

src/garden/vegetables.rs

a more complex setup is required.