Pollen morphology of Rhododendron subgen. Tsutsusi and its systematic implications
Yue-Jiao ZHANG, Xiao-Feng JIN, Bing-Yang DING, Jing-Ping ZHU
J Syst Evol . 2009, (2): 123 -138 .  DOI: 10.1111/j.1759-6831.2009.00011.x