You might incredibly probably have many many various varieties of outside fungus growing in there. Fungus spores/tissue etc of unrelated species that was carried into your substrate to the moss, Grime, woodchips etcetera. It’s probable the mushrooms go ahead and take inflow of dead and decaying plant materials following https://josuemfvwb.blog-a-story.com/10760422/psilocybe-baeocystis-an-overview