Pollen morphology of Androsace (Primulaceae) and its systematic implications

A close relationship between Androsace and related genera (Douglasia, Vitaliana, and Pomatosace) has long been recognized. Recent molecular studies have provided abundant evidence that Douglasia, Vitaliana, and Pomatosace are nested within Androsace and together constitute the monophyletic “Androsace group”. We investigated the pollen morphology of 80 taxa representing all sections of An…