Ding Yue Wang

Cycas hongheensis is a species of cycad endemic to Yunnan, southern China. It is found in Gejiu and Shiping County (near Nujie 牛街镇). It is also found in Dawei Mountain Nature Reserve. Only two wild populations remain, both with fewer than 1,000 individuals.

Cycas elongata is a species of cycad in the family Cycadaceae. It is endemic to southern Vietnam.

Cycas tanqingii is a species of cycad in China and Vietnam. It is found in Luchun County, southern Yunnan Province, China, and in Lai Châu Province, Vietnam. In China, it is located in the Xiaoheidiang River and Heishui River watersheds. In Luchun County, it is protected in Huanglian Mountain National Nature Reserve. It is also cultivated at the Shenzhen Fairy Lake Botanical Garden and at the Forestry Bureau of Luchun County. Its populations are relatively healthy due to early conservation and long-term monitoring.

Cycas fairylakea is a species of cycad endemic to China. There are only two subpopulations left in eastern Guangdong province, China. Cycas fairylakea can be considered as a subspecies of Cycas szechuanensis.

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