At the end of June we are on an 8 day Rick Steves tour of Munich, Salzburg, and Viennna. I would like to spend part of one day searching for mushrooms. Does anyone know of a good pocket guide to edible mushrooms of that region?
In which region you will have a day off for searching mushrooms? By the way, this is very dependent on the weather. Should it be very dry, not much mushrooms can be found.
Looks like you have free afternoons on day 4 and 5. But you would need to rent a car to get out of the town and into a wooded areas. And would need an IDP to drive legally. But it must be an area where the public are allowed, and where mushroom hunting is permitted. I have no idea how you would go about finding such places. June may be too early, and the weather may not be conducive to their growth in the short time you have.
Thanks for the helpful responses! 
I won't have much opportunity to cook anything, so my searching will be just for fun and memories. I doubt we will rent a car just for me to do this. It would be fun if I found others who would be willing to let me join them in their searches. 
Gruß Gott.
Again, people in this part of the world never tell their mushroom secrets nor would they bring a stranger along. Good luck.