Writing Resources
Pleurotus ostreatus which is known as the oyster mushroom the pearl oyster or the grey oyster mushroom is a very common edible mushroom It was first cultivated in Germany as a survival measure during World War I and is grown commercially around the world It is related to the likewise cultivated king oyster mushroom The oyster mushroom is easily recognized by the way it grows on wood in shelf like clusters usually in large size and nearly absent stem It appears between October and early April across North America and features a brown oyster shaped cap and its color range from white to gray A number of similar species are closely related including Pleurotus pulmonarius which is often paler and appears between late April and September and Pleurotus populinus which is found on the wood of quaking aspen It can be described as a fan like or a broad oyster shaped cap
