Pleurotus ostreatus, the oyster mushroom, oyster fungus, hiratake, or pearl oyster mushroom is a common edible mushroom.
It is one of the more commonly sought wild mushrooms, though it can also be cultivated on straw and other media.
Pleurotus ostreatus
Oyster mushrooms on a tree
Details of the gill structure
Pleurotus eryngii is an edible mushroom native to Mediterranean regions of Europe, the Middle East, and North Africa, but also grown in many parts of Asia.
Pleurotus eryngii