The follwing fixed position observation and sampling methods and the relationships between myxomycetes and plant community types,environmental conditions such as substrate,temperature,humidity and illumination were preliminarily investigated in Pinus koraiensis broad-leaved mixed forest of Changbai Mountains in Northeastern China.In three theropencedrymion sample plots composed of different trees,22 genera 62 myxomycetes species are found in 'Fraxinus mandshrica+Quercus mongolica+Pinus koraiensis' community...