Fauna
Fungus

Pear-shaped Puffball

Apioperdon pyriforme

Also known as Stump Puffball, Pear-shaped Lycoperdon

Pear-shaped puffballs grow in dense clusters on decaying wood, producing smooth, egg-to-pear-shaped fruiting bodies attached by distinct white mycelial cords. As they mature, their pale cream exterior darkens to tan or light brown before opening a central apical pore to release millions of powdery brown spores into the wind. These saprobic fungi play an essential ecological role by breaking down rotting logs and stumps across temperate forests worldwide.

FungusCluster-formingDecomposer
Pear-shaped Puffball reference1 / 7
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Not EvaluatedConservation statusIUCN Red List categoriesLCNTVUENCREWEXNot Evaluated — not placed on the risk ladderRed List categories, explained →
Key facts
Diet & preyDecaying wood, Lignin, Cellulose
Predators
  • Fungus gnats
  • Slugs
  • Beetles
ThreatsHabitat destruction through intensive forest clearing
HabitatsDeciduous and coniferous forests, fallen logs, mossy tree stumps
Life spanFruiting bodies persist 1–3 weeks; subterranean mycelium survives indefinitely
Classification
  1. OrderAgaricales
  2. FamilyLycoperdaceae
  3. GenusApioperdon
  4. SpeciesApioperdon pyriforme
Range & activity
Range data is not available yet.
Safe observation
Interaction riskLow
  1. Low
  2. Moderate
  3. High
  4. Very high
Why interaction risk is low
Many wild mushrooms have dangerous look-alikes; never ingest wild fungi based on app identification alone.
Responsible observation
  • Substrate Check: Look for clusters growing directly on decaying wood or mossy stumps rather than bare soil.
  • Spore Observation: Gently press mature brown fruiting bodies to observe spore clouds emerging from central pores.
  • Mycelial Strands: Carefully inspect the base of a clump to spot the white thread-like cords attaching to the wood.
Related species
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