The differences between Pleurotus ostreatus and Pleurotus ostreatus are as follows: Pleurotus ostreatus, also known as Pleurotus ostreatus, Pleurotus ostreatus, Pleurotus ostreatus, Pleurotus ostreatus, Pleurotus ostreatus, and Pseudo-Black Umbrella. It belongs to Basidiomycotina, Laminaria, Agaricus, Pleurotus, and Pleurotus. The fruiting body is medium to large. The cap is oblate and hemispherical to flat, brown to grayish brown or rusty brown, with smooth or ciliated scales. When it is dry, the surface is shiny, and the edge of the cap is initially rolled in and attached with agaricales fragments. Mushroom meat is white and slightly thick. At the initial stage of bacterial fold, it is white, gradually grayish purple to dark brown purple, straight, dense, wide and unequal in length. The stipe is nearly cylindrical, white above the fungus ring, nearly smooth and soft inside to become hollow. The fungus ring is in the middle and upper part, membranous and easy to fall off. Distributed in Taiwan Province, Hongkong, Sichuan, Shaanxi, Gansu, Yunnan, Jilin, Tibet and other places. In summer and autumn, it grows in the forest or on the grassland near the forest. Stropharia rugosoannuata Farl. ex murrill is a fungus belonging to the genus Stropharia. The diameter of the cap can reach15cm, and it is oblate to flat, or convex-mirror-shaped, slightly sticky when wet, with smooth edge or covered with hairy scales, and more agaricales fragments are attached. Mushroom meat is thick and white; Bacteria are pleated, unequal in length, curved and brittle; The stipe base is enlarged when it is young, and it is thick and fibrous when it is mature. The upper part of the mature stipe is milky white, and the middle and base are yellow-brown. The fungus ring is on the upper position, and the upper mask is wrinkled. The stalk length can reach 16 cm, and the upper diameter can reach 12 mm. Basidiospores are oval, yellowish brown to dark brown, thick-walled and smooth. [ 1][2]

Pleurotus ostreatus grows on the edge of grassland or broad-leaved forest, usually appears in autumn and is scattered, and its fruiting body is perishable. Pleurotus ostreatus is widely distributed in Europe, North and South America and temperate regions of Asia. In China, it is mainly distributed in Gansu, Jilin, Shaanxi, Sichuan, Taiwan Province, Tibet and Yunnan. [ 1]

Pleurotus ostreatus is rich in nutrition, crisp and tender in taste, rich in flavor, and has the effects of preventing coronary heart disease, helping digestion and relieving mental fatigue. In addition, Pleurotus ostreatus can degrade some harmful substances in soil and wastewater, which is one of the important organisms for environmental protection and remediation of environmental pollution. Because of its strong adaptability and easy cultivation, FAO has recommended it to developing countries, and it can be developed as a new resource in protein, which has attracted the attention of many countries. [3][5]