Abstract: Based on the investigation and identification of macrofungi in Xujiaba of Jingdong county in Yunnan province, the species diversity, dominant families and genera of macrofungi were analyzed. The results showed that the macrofungi in this area involve 2 phyla,ascomycota and basidiomycota. 210 species of wild macrofungi were found, belonging to 88 genera, 41 families, 13 orders and 6 classes. Among them 7 kinds of ascomycetes belong to 6 genera, 5 families and 203 kinds of basidiomycetes belong to 83 genus and 36 families. There were 6 dominant families, accounting for 14.63% of the total number of families. There were 9 dominant genera, accounting for 10.11% of the total number of families. According to their utilization value, edible fungi, medicinal fungi,medicinal food and bacteria and toxic fungi were classified, edible fungi had 75 species,accounting for 35.71% of the total, medicinal fungi had 22 species, accounting for 10.48% of the total, medicinal food and bacteria had 33 species, accounting for 15.71% of the total, toxic fungi had 30 species, accounting for 14.29% of the total, and there were 50 unknown species, accounting for 23.81% of the total. The area were rich in wild macrofungi、medicinal bacteria resources, that has great potential for exploitation and utilization.

Key words: macrofungi, dominant families, dominant genera, species diversity