The species,distribution and diversity of endophytic fungi in Alternanthera philoxeroides plants were studied by sampling,tissue isolation,culture and identification. The results showed that the species of endophytic fungi in Alternanthera philoxeroides plants were rich,and total of 16 endophytic fungi were isolated from the stems and leaves. Among them,15 species belonging to 12 genera were sporulation fungi and 1 species were non sporulation fungi.The sporulation fungi were belonging to Deuteromycete. The...