Abstract:Shimentai Nature Reserve is situated in the center of north Guangdong, 24°17'49"- 24°31'02"N, 113°01'11"- 113°46'22"E. It occupies about 82 260 hectares, and is the largest nature reserve in Guangdong. According to our field surveys and studies in the past three years, 158 species of mosses in 89 genera and 33 families are recognized from Shimentai Nature Reserve. Among them, 3 genera (Eccremidium, Phyllodon, and Stereodontopsis)and 23 species are newly recorded for Guangdong.