Thanks bluhoney.
Burple,You can try to integrate that colony into the natural environment. If your species grows on horse manure, then you could feed the grain to 2 or 3 horses, and hope the colony is not killed by the equine digestive system. Then it could continue to multiply in the horse and eventually fruit on a horse turd in their pasture. To make the cycle perpetuate, the horse would have to eat some spores on the grass that grew up around the turd and they would germinate (what exactly do they call that?) and colonize and fruit, ad infintum...
If it was P.Cubensis, I'd feed a good chunk of it to several cows from the same pasture after I made sure that those cows eventually got to browse that pasture where they took their spore dump.
We can all be like Johnny Appleseed (or Jony Shroomspore). (Notice the genderless name.)