Yeast vs mould
Bakers say yeast; damp-house English says mould. Both are fungi.
Sourdough and beer yeast are culinary English. Athlete’s foot and thrush are clinic English. Foraging forums add a third, risk-heavy dialect.
Never eat a wild mushroom on a guess. This page stays with public names, not identification keys that could be misread as a field guide.
Local notes
Clinic words
Ringworm is a fungus, not a worm. Thrush is a yeast overgrowth name, not a bird.
Foraging caution
English foraging culture is real — and it is how people get poisoned. Identity first, never ‘if unsure, taste’.
Official pages own schedules and treatment. This atlas does not.
More in Tree of microbes
Bacteria
Single-celled prokaryotes with cell walls — the oldest widespread life form, and both partners and pathogens.
Familiarity 95Viruses
Packets of DNA or RNA that are not cells — they replicate only inside living hosts.
Familiarity 96Archaea
A prokaryotic domain that is not bacteria — methanogens, extremophiles and no known human pathogens.
Familiarity 35Bacteriophages
Viruses that infect bacteria — Earth's most abundant biological entities, and a concept-level idea in medicine.
Familiarity 42Protozoa
Motile unicellular eukaryotes — a teaching grade that includes pond ciliates and a minority of serious parasites.
Familiarity 58