Generic monophyly and floral morphology of Disepalum (Annonaceae): investigating a possible evolutionary shift in pollination system

Poster: no. 4Taxonomic opinion regarding the delimitation of Disepalum (Annonaceae) has been divided: some researchers recognise a broadly circumscribed genus, characterised by pollen grains that develop in octads, and monocarps that are borne on an elongated ‘carpophore’; whilst others adopt a narrower delimitation (characterised by a calyx of only two sepals, and a fused corolla), with three species segregated in the genus Enicosanthellum (with three sepals, and unfused petals, as in most Annonaceae). Previous morphological research (Johnson, 1989) included hypo...postprin