Table 1. Sample species and locations.

Sample number		Species	Location	Sample number	Species	Location
1#		P. caobangensis	Wenshan, Yunnan	25#	P. polyphylla var. yunnanensis	Puer, Yunnan
2#		P. cronquistii	Bijie, Guizhou	26#	P. polyphylla var. yunnanensis	Yuxi, Yunnan
3#		P. cronquistii	Wenshan, Yunnan	27#	P. polyphylla var. yunnanensis	Lincang, Yunnan
4#		P. cronquistii var. xichouensis	Wenshan, Yunnan	28#	P. polyphylla var. yunnanensis	Nujiang, Yunnan
5#		P. delavayi var. petiolata	Baise, Guangxi	29#	P. polyphylla var. yunnanensis	Wenshan, Yunnan
6#		P. fargesii	Bijie, Guizhou	30#	P. polyphylla var. yunnanensis	Puer, Yunnan
7#		P. fargesii	Bijie, Guizhou	31#	P. polyphylla var. yunnanensis	Gejiu, Yunnan
8#		P. fargesii	Bijie, Guizhou	32#	P. polyphylla var. yunnanensis	Yuxi, Yunnan
9#		P. mairei	Dali, Yunnan	33#	P. polyphylla var. yunnanensis	Kunming, Yunnan
10#		P. polyphylla	Dali, Yunnan	34#	P. polyphylla var. yunnanensis	Wenshan, Yunnan
11#		P. polyphylla	Lijiang, Yunnan	35#	P. polyphylla var. yunnanensis	Puer, Yunnan
12#		P. polyphylla var. alba	Dali, Yunnan	36#	P. polyphylla var. yunnanensis	Nujiang, Yunnan
13#		P. polyphylla var. chinensis	Wenshan, Yunnan	37#	P. polyphylla var. yunnanensis	Kunming, Yunnan
14#		P. polyphylla var. chinensis	Baise, Guangxi	38#	P. polyphylla var. yunnanensis	Nujiang, Yunnan
15#		P. polyphylla var. chinensis	Baise, Guangxi	39#	P. polyphylla var. yunnanensis	Nujiang, Yunnan
16#		P. polyphylla var. pseudothib	Dongchuan, Yunnan	40#	P. polyphylla var. yunnanensis	Xishuangbanna, Yunnan
17#		P. polyphylla var. yunnanensis	Baoshan, Yunnan	41#	P. polyphylla var. yunnanensis	Lincang, Yunnan
18#		P. polyphylla var. yunnanensis	Kunming, Yunnan	42#	P. polyphylla var. yunnanensis	Wenshan, Yunnan
19#	P. polyphylla var. yunnanensis		Kunming, Yunnan	43#	P. polyphylla var. yunnanensis	Kunming, Yunnan
20#	P. polyphylla var. yunnanensis		Wenshan, Yunnan	44#	P. vietnamensis	Lincang, Yunnan
21#	P. polyphylla var. yunnanensis		Chuxiong, Yunnan	45#	P. cronquistii var. xichouensis	Baise, Guangxi
22#	P. polyphylla var. yunnanensis		Puer, Yunnan	46#	P. mairei	Nujiang, Yunnan
23#	P. polyphylla var. yunnanensis		Wenshan, Yunnan	47#	P. polyphylla var. yunnanensis	Xishuangbanna, Yunnan
24#	P. polyphylla var. yunnanensis		Nujiang, Yunnan	48#	P. polyphylla var. yunnanensis	Dehong, Yunnan