Nyssa yunnanensis is a species of tree in the Nyssa genus. It is a dioecious tree (meaning that it has distinct male and female individual organisms) reaching 25–30 m (82–98 ft) in height. This flowering canopy tree inhabits mountainous tropical bogs and marshes.[2]

Nyssa yunnanensis
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Cornales
Family: Nyssaceae
Genus: Nyssa
Species:
N. yunnanensis
Binomial name
Nyssa yunnanensis
W.C. Yin

Because of habitat loss and logging, this species is critically endangered in the IUCN Red List of Threatened Species.[1] It now exists only in the vicinity of Xishuangbanna, which is located in Jinghong County, Yunnan Province, China.[1][3] Only eight individual trees and two populations have been found in the wild, and 1999 this species has been listed among China's national Class I protection species and also among 120 PSESP (Plant Species with Extremely Small Populations) in the Implementation Plan of Rescuing and Conserving China's Plant Species with Extremely Small Populations (PSESP)[4] and as critically endangered in the Threatened Species List of China's Higher Plants. To facilitate future conservation biology studies a reference genome was sequenced, creating a 1475 Mb assembly with 39,803 protein-coding genes.[5] DNA was collected from a voucher specimen from Ruili Botanical Garden and stored in the China National GeneBank herbarium.

References

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  1. ^ a b c Sun, W. (1998). "Nyssa yunnanensis". IUCN Red List of Threatened Species. 1998: e.T32431A9706439. doi:10.2305/IUCN.UK.1998.RLTS.T32431A9706439.en. Retrieved 16 November 2021.
  2. ^ Sun, Bao-Ling et al. "Cryptic Dioecy in Nyssa yunnanensis (Nyssaceae), A Critically Endangered Species from Tropical Eastern Asia", Annals of the Missouri Botanical Garden, Vol. 96, pp. 672-684 (December 2009).
  3. ^ Haining Qin & Chamlong Phengklai. "Nyssa yunnanensis". Flora of China. Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA. Retrieved 1 September 2013.
  4. ^ Yang, Jing; Cai, Lei; Liu, Detuan; Chen, Gao; Gratzfeld, Joachim; Sun, Weibang (2020-04-01). "China's conservation program on Plant Species with Extremely Small Populations (PSESP): Progress and perspectives". Biological Conservation. 244: 108535. doi:10.1016/j.biocon.2020.108535. ISSN 0006-3207. S2CID 216389107.
  5. ^ Mu, Weixue; Wei, Jinpu; Yang, Ting; Fan, Yannan; Cheng, Le; Yang, Jinlong; Mu, Ranchang; Liu, Jie; Zhao, Jianming; Sun, Weibang; Xu, Xun; Liu, Xin; Drmanac, Radoje; Liu, Huan (August 2020). "Gigabyte". gigabytejournal.com. 2020: 1–12. doi:10.46471/gigabyte.4. PMC 9632040. Retrieved 2020-11-08.

Further reading

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