Morphological comparison between Polyalthiopsis chinensis and P. verrucipes A type specimen of P. chinensis (Qinghai-Xizang Exped. 74-4451, PE) B infloresence of P. chinensis (Qinghai-Xizang Exped. 74-4451, PE) C type specimen of P. verrucipes (C. W. Wang 76321, A) D inflorescence of P. verrucipes (B. Xue & H.B. Ding 311, IBSC) E adaxial leaf surface of P. chinensis (Qinghai-Xizang Exped. 74-4451, KUN) F abaxial leaf surface of P. chinensis (Qinghai-Xizang Exped. 74-4451, KUN) G adaxial leaf surface of P. verrucipes (Yunnan Exped. 9527, KUN) H abaxial leaf surface of P. verrucipes (Yunnan Exped. 9527, KUN).