What do these mushrooms grow on?

Active mushrooms grow on a variety of things (substrate) but primarily they grow on horse or cow manure, dead wood or mulch, and on the ground in the grass.

Active mushrooms grow on a variety of things (substrate) but primarily they grow on horse or cow manure, dead wood or mulch, and on the ground in the grass. Here is a list of active species matched to the thing or substrate that they grow on.

Horse manure (dung):
Panaeolus subbalteatus
Psilocybe cubensis

Cow manure (dung):
Panaelous(Copelandia) cyanescens
Panaeolus subbalteatus
Psilocybe cubensis

Mulch or dead wood and debris:
Gymnopilus sp.
Psilocybe azurescens
Psilocybe cyanescens
Psilocybe ovoideocystidiata
Psilocybe subaeruginosa
Psilocybe subaeruginascens
Psilocybe villarrealiae
Psilocybe zapotecorum
Weraroa novea-zelandiae

Grass-covered ground:
Panaeolus subbalteatus
Psilocybe atlantis
Psilocybe mexicana
Psilocybe semilanceata
Psilocybe weilii

*Note: Possession of active mushrooms and trespassing may be illegal in your area. Please consult an authority before picking active mushrooms.