Supplementary information

Semi-deciduous tree, basal part of trunk buttressed; bark brown or greyish white tinged with brown, cracking into long irregular strips. Leaves trimorphic, spirally arranged. Leaves on mature perennial branchlet and fertile branchlet, scalelike, thickened, sessile, ca. 2mm long. Leaves on anuual branchlet of mature plant in 3 row, subulate, spreading, deciduous with annual branchlet. Leaves on annual branchlets of young trees and seedlings often 2-ranked, sessile, linear, flat, thin, deciduous. Listed as Critically Endangered in IUCN Red List (Data retrieved on 2/6/2015)  https://www.iucnredlist.org/details/32312/0

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References

1. Flora of Hong Kong: Agriculture, Fisheries and Conservation Department, Government of the Hong Kong Special Administrative Region

2. Flora of Guangdong: Guangdong Science and Technology Press

3. Flora of China. Vol 9 (2003): Science Press, Beijing Missouri Botanical Garden Press, St. Louis

4. Flora Republicae Popularis Sinicae (中國植物志): Science Press, Beijing