False morel mushrooms. They are deadly poisonous if not cooked, closely resembling real morel mushrooms, being wrinkled and brown in the same way. However, morel mushrooms are symmetrical while false morels are irregular in shape and look like a brown brain, while true morels are more like a sponge. True morels have hollow stems while those of false morels are solid. Be careful to check each of these features before attempting to eat one. They have a fine flavour and are generally parboiled. They are popular in Nordic countries and in Finland especially.
"Hairy wood ear." Cloud ear fungus that grows on dead wood, available fresh or dried. If fresh they have a bland flavour but take up the flavour of the foods with which they are cooked. They should not be fried as they explode, but should be stewed for at least an hour. If dried they are black and are broken into small pieces. They swell hugely when soaked. Dried mushrooms may also be ground to a powder, in which form it may be used to flavour soups and stocks.