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Bulletin of Botanical Research ›› 2022, Vol. 42 ›› Issue (3): 321-328.doi: 10.7525/j.issn.1673-5102.2022.03.001

• Taxonomy •     Next Articles

Flora of Lycophytes and Ferns in Northeast China

Yan LI1,2,3, Wei CAO2, Huan HE4, Yue ZHANG2,3, Daoyan SU2,3, Wei CHEN1,2,3,5()   

  1. 1.CAS Key Laboratory of Forest Ecology and Management,Institute of Applied Ecology,Chinese Academy of Sciences,Shenyang 110016
    2.Institute of Applied Ecology,Chinese Academy of Sciences,Shenyang 110016
    3.Arboretum of Institute of Applied Ecology,Chinese Academy of Sciences,Shenyang 110016
    4.International School,Shenyang Jianzhu University,Shenyang 110168
    5.University of Chinese Academy of Sciences,Beijing 100049
  • Received:2021-06-23 Online:2022-05-20 Published:2022-05-20
  • Contact: Wei CHEN E-mail:hexy@iae.ac.cn
  • About author:LI Yan(1980—),female,engineer,mainly engaged in plant diversity,distribution pattern and conservation research.
  • Supported by:
    National Key Research and Development Program of China(2016YFC0500300)


Northeast China is the richest area of lycophytes and ferns in northern China, and systematic study on its flora is the basis and premise of regional lycophyte and fern resource management. In this study, based on literature analysis and specimen review, the flora and characteristics of lycophytes and ferns in Northeast China were explored. The results showed that: ①There were 141 taxa(species and intraspecific taxa), which belonged to 48 genera of 19 families. ②The flora of lycophytes and fern in Northeast China was temperate, with ancient tropical origins and cold zone components, which indicated the complexity of its geographical composition. ③Predominant families and genera were obvious: the number of species in seven dominant families accounted for 63.83% of the total number of species, and six dominant genera for 46.10%. There were also many monotypic genera and oligotypic genera with two or three species, accounting for 83.33% of the total number of genera, but 47.52% of the total number of species. ④Northeast China was an important distribution area of Equisetaceae in China. ⑤A total of 30 Chinese endemic species of lycophytes and ferns were distributed in Northeast China, of which four species were endemic to Northeast China(Huperzia asiaticaAthyrium yokoscense var. kirismaenseDeparia pycnosora var. longidens and Parathelypteris changbaishanensis). This study provided a necessary supplement to the study of flora in Northeast China, and had important theoretical and practical significance.

Key words: lycophytes and ferns, dominant families and genera, geographical composition, temperate, endemic

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