Table 2.

Plant materials used for morphological analysis based on phylogeny in this study.

No.	Taxa	Infragenious groups/sections	TB	Length range (μm)	Mean length (μm)
1	Quercus fleuryi	Cyclobalanopsis	STB	4.57–13.37	8.21 ± 1.75
2	Quercus blakei	Cyclobalanopsis	STB	7.85–30.1	17.11 ± 4.43
3	Quercus kiukiangensis	Cyclobalanopsis	STB	8.98–28.1	16.3 ± 4.67
4	Quercus sessilifolia	Cyclobalanopsis	STB	7.67–26.63	17.26 ± 4.46
5	Quercus kouangsiensis	Cyclobalanopsis	STB	5.86–18.37	11.38 ± 2.21
6	Quercus schottkyana	Cyclobalanopsis	STB	6.28–20.73	12.93 ± 3.87
7	Quercus lamellosa	Cyclobalanopsis	STB	3.53–20.24	11.25 ± 3.72
8	Quercus augustinii	Cyclobalanopsis	STB	7.87–24.91	14.02 ± 3.52
9	Quercus phanera	Cyclobalanopsis	STB	6.17–33.67	17.35 ± 5.96
10	Quercus gilva	Cyclobalanopsis	CTB	9.12–19.68	12.67 ± 1.8
11	Quercus variabilis	Cerris	West Eurasian Cerris	7.59–27.44	12.71 ± 4.12
12	Quercus franchetii	Ilex	East Asian Ilex	7.01–25.76	13.44 ± 4.0
13	Quercus longispica	Ilex	Himalayan subalpine	6.08–33.97	15.92 ± 5.76
14	Quercus serrata	Quercus	Roburoids	5.99–19.44	11.31 ± 2.65
15	Quercus aliena	Quercus	Roburoids	6.81–16.83	11.24 ± 2.34

The leaf trichome base (TB) characteristics were obtained from Deng et al. (2014) and Hipp et al. (2020): single-celled trichome base (STB); compound trichome base (CTB). Elev.: elevation.