What might make that even cooler is having multiple layers.

1. Detect the trees (I think morels are symbiotic with some kind of tree) that morels are most likely to be found near.

2. Detect the morels themselves, perhaps taking into account that you are now in a particular environment so you know you don't have to worry about detecting them on a sandy beach or some other ecological impossibility (if there is such a thing for morels, and I suspect there is).