It's mushroom season, so we happily took up Keith Seifert on his offer to go on a mushroom and fungi walk in the Gatineau Hills.  Keith is one of the world's leading experts on fungi, having spent over forty years studying them on five continents, both as a research academic and as the top scientist on the subject for Agriculture Canada. He is the past president of the International Mycological Association. Keith is also the author of the new book, "The Hidden Kingdom of Fungi -Exploring the Microscopic World in Our Forests, Homes, and Bodies."So join us on our walk, where we spot mushrooms, both delicious and deadly, and talk about the rich and complex relationship that fungi have with trees and the forest, and why understanding fungi is key to a better future for all of us.