Effects of the yellow barbs of the staminodes on reproductive success of Delphinium caeruleum (Ranunculaceae)
Chan Zhang, Shaoqin Zha, Yongping Yang, Yuanwen Duan
Biodiv Sci . 2012, (3): 348 -353 .  DOI: 10.3724/SP.J.1003.2012.06035