Appendix 1.
Collection locality and voucher information for Pseudotaxus chienii and Taxus chinensis var. mairei populations used in this study.
| Species | Population code | Collection locality | Geographic coordinates | Voucher specimena |
| Pseudotaxus chienii (W. C. Cheng) W. C. Cheng | Zjsmj | Shuimenjian, Zhejiang Province | 28°43′42″N, 118°57′32″E | YJ Su 201303, SMJ27 |
| Pseudotaxus chienii | Jxzzb | Zizhuba, Jiangxi Province | 26°27′18″N, 114°06′22″E | YJ Su 201303, ZZB12 |
| Pseudotaxus chienii | Hnzjj | Zhangjiajie, Hunan Province | 29°23′12″N, 110°28′56″E | YJ Su 201303, ZJJ09 |
| Pseudotaxus chienii | Gxdms | Damingshan, Guangxi Zhuang Autonomous Region | 23°29′54″N, 108°26′12″E | YJ Su 201303, DMS17 |
| Taxus chinensis (Pilg.) Rehder var. mairei (Lemée & H. Lév.) W. C. Cheng & L. K. Fu | Jxfs | Fenshui, Jiangxi Province | 28°56′31″N, 108°02′12″E | WB Liao 201108, FS1 |
a
Voucher specimens are deposited at the herbarium of Sun Yat-sen University (SYSU).