promycelium
/ˌproʊmaɪˈsiːliəm/
noun
- A short, usually septate hypha that develops from a germinating spore in certain fungi, bearing the sporidia.
- The promycelium of the rust fungus produced basidiospores.
- Under the microscope, the promycelium appeared as a short, branched filament.
- The formation of the promycelium is a key step in the life cycle of smut fungi.