Composition Analysis of Lycophytes and Ferns in Yunzhongshan Nature Reserve, Fujian Province.

[Objectives] To analyze the composition of lycophytes and ferns in Yunzhongshan Nature Reserve, Fujian Province. [Methods] This study examined the composition of lycophytes and ferns in Yunzhongshan Nature Reserve through field investigations and specimen identification, supplemented by a review of relevant literature. [Results] A total of 84 species of lycophytes and ferns were identified, encompassing 55 genera and 29 families. This included 14 species of lycophytes distributed across 8 genera and 3 families, as well as 70 species of ferns belonging to 47 genera and 26 families. Polypodiaceae and Selaginella were the dominant family and genus, respectively, while oligospecific families and monotypic genera were significant components of lycophytes and ferns in the region. The distribution types of these families were primarily cosmopolitan and tropical. The Germline differentiation degree (SD) was 3.34, and the proportion of rare or endangered species among lycophytes and ferns was 8.33%. [Conclusions] Yunzhongshan Nature Reserve possesses a diverse array of lycophyte and fern species. This study offers valuable scientific insights that can inform efforts related to the conservation of biodiversity, resource utilization and development, species introduction, and system evolution of lycophytes and ferns within the reserve. [ABSTRACT FROM AUTHOR]