Pollination ecology of Gentiana siphonantha (Gentianaceae) and a further comparison with its sympatric congener species
Qin-Zheng HOU, Li-Hua MENG, Hui-Ling YANG
J Syst Evol . 2008, (4): 554 -562 .  DOI: 10.3724/SP.J.1002.2008.07063