Species Diversity and Floristics Seed Plants in Baotianman Nature Reserve

During April and October 2019, filed investigations were conducted on seed plant in Baotianman Nature Reserve, Henan province. The resulted demonstrated that there were 2 730 species of 890 genera and 163 families, accounting for 95.9%, 83% and 72.3% of the families and genera of seed plant in Henan province, and 98.8%, 84.2% and 71.1% of that in Qinling Mountains. The floristics of seed plants was complex in Baotianman Nature Reserve, including 15 distribution types and 18 subtypes, of which 593 species of 245 genera in tropical distribution, accounting for 30.5% of non-world distribution, and 1 582 species of 523 genera in temperate distribution, accounting for 65.0% of non world distribution genera. The floristics of Baotianman Nature Reserve was similar to that of the eastern, middle and western parts of Qinling Mountains, and had higher correlation with the floristics of northeast temperate zone and northwest warm temperate zone than that of Central and South China.