Lilium spp. pollen in China (Liliaceae): Taxonomic and Phylogenetic Implications and Pollen Evolution Related to Environmental Conditions Du, Yun-peng ; Wei, Chi ; Wang, Zhong-xuan ; Li, Shuang ; He, Heng-bin ; Jia, Gui-xia Abstract Publication: PLoS ONE Pub Date: January 2014 DOI: 10.1371/journal.pone.0087841 Bibcode: 2014PLoSO...987841D