Pollen morphology of the tribe Cynoglosseae of Boraginoideae (Boraginaceae) in China
LIU Jia-Xi, ZHANG Yu-Long, NING Jian-Chang, ZHAO Yun-Yun, LI Ya-Xuan, ZHANG Jing-Mei
J Syst Evol . 2001, (6): 515 -522 .