Two new records of Spiradiclis (Rubiaceae) from Vietnam

  • Lee, Joongku (Department of Environment and Forest Resources, Chungnam National University) ;
  • Khang, Nguyen Sinh (Department of Botany, Institute of Ecology and Biological Resources, Vietnam Academy of Science and Technology) ;
  • Choudhary, Ritesh Kumar (Biodiversity & Palaeobiology Group, Agharkar Research Institute) ;
  • Quang, Bui Hong (Department of Botany, Institute of Ecology and Biological Resources, Vietnam Academy of Science and Technology)
  • Received : 2019.04.19
  • Accepted : 2019.08.23
  • Published : 2019.09.01


Spiradiclis hainanensis H.S. Lo and S. purpureocaerulea H.S. Lo (Rubiaceae) are reported as new additions to the flora of Vietnam. In Vietnam, the genus Spiradiclis has been represented by only two species, S. leptobotrya (Drake) Pit. and S. caespitosa Blume. During our field investigations in the Lao Cai and Ninh Binh Provinces of northern Vietnam, we collected two interesting specimens of Spiradiclis that were earlier known only from China and unknown in Vietnam. Here, we report S. hainanensis and S. purpureocaerulea as previously unrecorded species from Vietnam. Detailed descriptions and color photographs are provided along with a taxonomic key for Spiradiclis species in Vietnam.


Supported by : Vietnam Academy of Science and Technology (VAST), Chungnam National University


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