TY - Bulletin of Botanical Research A1 - LI Yu-Ling;QIN Xin-Sheng*;FENG Yi-Qing T1 - Pollinarium Morphology of 12 Species of Cynanchum(Asclepiadaceae) Y1 - 2012-03-20 JF - Bulletin of Botanical Research JO - Bulletin of Botanical Research SP - 137 EP - 142 VL - 32 IS - 2 UR - https://bbr.nefu.edu.cn N1 - 10.7525/j.issn.1673-5102.2012.02.002 ER -