Study on the Woody Plants Flora of Wanshan, Tongren City

Based on field surveys, we recorded 82 families, 216 genera, and 495 species (including subspecies) of woody plants in Wanshan, which included 5 families, 6 genera, and 7 species of gymnosperms; 77 families, 210 genera, and 488 species of angiosperms, including 3 families, 7 genera, and 17 species of monocotyledons, and 74 families, 203 genera, and 471 species of dicotyledons. Floristic analysis showed that:(1) The geog-raphical composition of the flora was complex and diverse, with obvious temperate characteristics, and closely linked with tropical flora; (2) The floristic features of the Wanshan flora were relatively primitive, with many ancient and relic taxa; (3) Many species were endemic to China; (4) Compared with the woody flora of six adjacent areas, the Wanshan flora was closely related to that of Damu Mountain in Chongqing, but distant to that of Lugu lake.