Pollen morphology of the <i>Maddenia</i> clade of <i>Prunus</i> and its taxonomic and phylogenetic implications

Wenting SHI, Jun WEN, Susan LUTZ

Journal of Systematics and Evolution . 2013, (2): 164 -183 . DOI: 10.1111/j.1759-6831.2012.00233.x