Floristic analysis of lycophytes and fern in the Tingjiangyuan Nature Reserve in Fujian

[Objective] The objective of this study is to investigate species diversity and floristic geographical characteristics, in order to provide a reference for the research on the diversity conservation, resource application and development, and phylogenetic evolution of lycophytes and fern in the Tingjiangyuan Nature Reserve. [Methods] On the basis of field investigation and specimen identification, combined with the literature data, the list of lycophytes and fern in the area was compiled, and the faunal composition and geographical composition were analyzed. [Results] (1) There were 129 species of lycophytes and ferns in 60 genera and 23 families, including 15 species of lycophytes in 5 genera and 2 families, and 114 species of ferns in 55 genera and 21 families. (2) The dominant families and genera were obvious, with 3 families and 1 genus of the dominant families. Monospecific families, genera, and oligogenes were the main bodies of the lycophytes and fern families and genera in the area. (3) The distribution types of families were mainly global and tropical, and the distribution types of genera and species were mainly tropical and temperate. There were 15 endemic species in China. (4) The geographical kinship between this area and the Liangye Mountain Nature Reserve was the closest. [Conclusion] The geographical composition of the lycophytes and fern plants in the Tingjiangyuan National Nature Reserve is diverse, with obvious endemic phenomena and low biodiversity. The plant flora shows a transition from tropical to temperate on a horizontal gradient.