Pollinator shifts as triggers of speciation in painted petal irises (Lapeirousia: Iridaceae)

Abstract

The available evidence points to a predominant influence of pollinator shifts over substrate types on the speciation process within Lapeirousia, contrary to previous studies that favoured a more important role for edaphic factors in these processes. This work also highlights the importance of biogeographical patterns in the study of pollination syndromes.