Biodiv Sci ›› 2022, Vol. 30 ›› Issue (8): 22085.  DOI: 10.17520/biods.2022085

Special Issue: 青藏高原生物多样性与生态安全

• Bioinventories • Previous Articles     Next Articles

Additions to the seed plant flora in Xizang, China

Hongbo Ding1, Shishun Zhou1, Jianwu Li1, Jianyong Shen1, Xingda Ma1, Jian Huang1, Yu Song2, Xuemei Wen3, Ming Lei3, Yanli Tu3, Yaowu Xing1,*(), Yunhong Tan1,*()   

  1. 1. Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Mengla, Yunnan 666303
    2. College of Life Sciences, Guangxi Normal University, Guilin, Guangxi 541004
    3. Tibet Plateau Institute of Biology, Lhasa 850001
  • Received:2022-02-23 Accepted:2022-04-18 Online:2022-08-20 Published:2022-08-31
  • Contact: Yaowu Xing,Yunhong Tan


Aims: The Himalaya contains many V-shaped valleys owing to the steep slopes, these valleys add to the flora and vegetation diversity. To better understand flora diversity and vegetation structure of the south slope of the Himalaya, especially the top five valleys (Yadong Valley, Chentang Valley, Gama Valley, Zhangmu Valley and Gyirong Valley), we conducted the investigation in the top five valleys July to August 2021.

Methods: In this study, 1,490 specimens were collected and photographed through field investigation, made into specimens, and sorted out and identified. The voucher specimens for each reported species were preserved in the Herbarium of Xishuangbanna Tropical Botanical Garden (HITBC), Chinese Academy of Sciences and Herbarium of Tibet Plateau Institute of Biology (XZ).

Results: Eight species, Marsdenia roylei, Trachycarpus takil, Sonerila khasiana, Cissampelos convolvulacea, Herminium edgeworthii, Passiflora napalensis, Hedychium ellipticumand Roscoea brandisii are reported as newly recorded species from the south slope of the Himalaya in China. One genus, Belostemma (Belostemma hirsutum) is reported as newly recorded genus in Xizang Autonomous Region.

Conclusions: The south slope of the Himalaya harbors one of richest floras in Xizang. But the floristic survey in this area is still insufficient, and should be further strengthened in the floristics and specimen collection in the future.

Key words: Gyirong Valley, Zhangmu Valley, Chentang Valley, newly recorded species, newly recorded genus