Last week I found a couple of birch bolets (Leccinum scabrum) under a tree at work. Today I went for a walk to see if there were any more and came back with about a kilo of them. I also found some very tasty looking young fly agarics (Amanita muscaria; see Donn's blog for cooking instructions). I also found a couple of different looking bolets. I think these are Boletus versicolor (aka B. Rubellus). Rogersmushrooms.com says they are edible but not good.