Forest floor image with red poisonous mushroom. Lots of mushrooms are edible, however if you are not sure do not take mushroom home because plenty of them are poisonous. The bloody tooth is a very poisonous fungus - the most poisonous fungus on planet earth. Forest floor jigsaw puzzle shows all the living things. Play and solve Forest floor puzzle with 12, 24, 35, 40, 54, 60, 70, 96, 104 or 260 pieces. This online jigsaw puzzle, is the perfect way to relax. Or create your own personalized puzzles for kids.