TY - J Syst Evol A1 - Pei-Wu XIE,Zhong-Lai LUO,Dian-Xiang ZHANG T1 - Syrphid fly pollination of Guihaiothamnus acaulis (Rubiaceae), a species with "butterfly" flowers Y1 - 2012-06-04 JF - Journal of Systematics and Evolution JO - J Syst Evol SP - 86 EP - 93 VL - 51 IS - 1 UR - https://www.jse.ac.cn N1 - 10.1111/j.1759-6831.2012.00191.x ER -