Unknown dematiaceous mold mold spore under a microscope, verified by PollyMapPollyMap

Unknown dematiaceous mold mold spore photographed through the microscope in the PollyKit lab.

About mold spore

A fungal spore captured from air and reviewed by hand in the PollyKit lab.

Where it grows

  • Decaying leaves and plant litter
  • Soil, compost and mulch
  • Damp indoor materials

How to recognize it

Mold spores are identified by colour, wall thickness, surface ornament and the pattern of internal dividing walls. Many genera can only be separated with those features together, so we publish at the level the evidence supports.

Allergy relevance

Outdoor spore counts often exceed pollen counts in humid weather, and mold sensitivity is an established asthma risk factor.

Where it's found

Worldwide and in every US state.

Also searched as: mold spore under microscope, mold spore image, fungal spore identification.

This particle has not been identified yet. If you recognize it, the expert discussion below is the place to say so — accepted corrections are credited.

Citing this specimen: PollyMap Specimen Library. “Unknown dematiaceous mold — verified microscope specimen.” pollymap.com/library/specimen/unknown-dematiaceous-mold-mold-spore-69e5d5

Expert discussion

No published comments yet. If you study palynology or mycology, we'd value your read on this specimen.