A note on Corydalis in He􀆳nan, China

[Objective] This study aims to examine the species diversity of the genus Corydalis in He􀆳nan, China, and to further identify species distribution. [Methods] After reviewing the literatures and specimens from the Chinese Virtual Herbarium (CVH), we conducted field investigations, took photos, and collected specimens. [Results] We confirmed three newly recorded species of Corydalis species in He􀆳nan Province, namely C. nanwutaishanensis Z.Y. Su & Lidén, C. ochotensis Turcz., and C. wilfordii Regel. We also verified that C. ensiana Lidén ex C. Y. Wu, H. Chuang & Z. Y. Su, and C. caudata (Lam.) Pers. were misidentified as C. curviflora Maxim. and C. humosa Migo. in previous literatures. In addition, we found a translation error in the label of C. pseudoincisa C.Y.Wu, Z.Y.Su & Lidén, which might not be distributed in He􀆳nan Province. [Conclusion] Three newly recorded species and three suspected species of Corydalis are reported in Henan Province, which are helpful for the study of biodiversity in He􀆳nan Province and the revision of Flora of He􀆳nan.