Investigation of spermatophyte resources in Tongtieling, Hainan

The spermatophyte flora of Tongtieling in Hainan Province consists of 1 279 species, 681 genera and 165 families. Of them,5 gymnosperm species belong to 3 genera, 3 families and 1 025 dicotyledon species belong to 526 genera,135 families and 249 monocotyledon species belong to 152 genera,27 families. Among these plants found, 8 species are the national key protected plants, 61 species are the rare and endangered plants. The statistic result shows that there are about 401 timber plants, 623 medicinal plants, 86 oil\|bearing plants, 58 aromatic plants, 102 nectariferous plants, 56 fiberrous plants, 66 fruit trees, 196 ornamental plants, 51 forage plants, 22 green manure plants, 24 pesticide plants, 27 tannic plants and 16 starch plants. The characteristics of the plant resources are analyzed and suggestions about sustainable utilization and conservation of the resources are put forward.