A sporule is a small part of a fungus that can grow into a new fungus.
Sporules are like tiny seeds for fungus.
Examples:
The sporule grows into a new fungus.
I found a sporule on the mushroom.
The sporule is very small.
The sporule is like a tiny magic seed.
A sporule can make a whole new fungus.
The sporule is so small, you can't see it without a special glass.