- Fungus
- See related figure: The mushroom is not the whole organism →
A living thing that feeds by digesting dead material from outside; neither plant nor animal.
- Mycelium
- See related figure: The mushroom is not the whole organism →
The white thread network that is the real body of the fungus.
- Spawn
- See related figure: What are you actually buying? →
Mycelium grown on sterilised grain, used as the seed of a mushroom crop.
- Substrate
The prepared material the fungus eats: straw, compost or sawdust.
- Flush

AI illustration · details
AI teaching illustration. Tiny pins develop at the casing surface before visible mushrooms enlarge. The condition of the crop matters alongside the planned transition date.
Open full image ↗One wave of mushrooms; bags give several flushes with gaps between them.
What Mushrooms Are
Visual glossary
