Floristic Analysis of Seed Plants in Mount Emei Area

Based on many years of field investigation, combined with relevant scientific literatures, the flora composition and characteristics of seed plants distributed in Mountain Emei area were analyzed. The floristic analysis showed that: (1) There were 177 families, 984 genera and 2980 species of seed plants in Mount Emei area. Among them, there were 33 species, 21 genera, 5 families of gymnosperms, and 2947 species, 963 genera, and 172 families of angiosperms. (2) According to the distribution pattern of families, the families of tropical-subtropical elements were dominant, but the families of temperate elements also accounted for a large proportion, with 74 families and 53 families respectively, accounting for 57.81% and 41.41% of the non-world widespread families respectively. Among the distribution types at the genus level, temperate components were slightly dominant, with 450 genera, accounting for 49.29% of non-worldwide genera. Comprehensive analysis showed that the temperate and tropical-subtropical components intersect and merge in Mount Emei area. The temperate distribution was dominant but the tropical and subtropical nature was also obvious, which showed the characteristics of the transition from tropical-subtropical to temperate zone. (3) In Mount Emei area, the flora of seed plants is complex and rich, and there are many endangered, endemic and ancient species.