After pouring through books and websites, we have decided, we think, that we have sweetdough or sweetbread mushrooms growing under our maple tree in our Missoula, MT yard. My brave 19 yr old has tested them twice at recommended intervals with no ill effects. In fact said they were delicious. I know we saw them last year, so am pretty sure they'll come back. Wondering if anyone has ideas on how to ensure their return and perhaps how to boost quantity and possible second flush...