Pollination systems, biogeography, and divergence times of three allopatric species of Schisandra in North America, China, and Japan
Jian-Hua FAN, Leonard B. THIEN,Yi-Bo LUO
J Syst Evol . 2011, (4): 330 -338 .  DOI: 10.1111/j.1759-6831.2011.00125.x