You selected Melodorum gracile (Oliv. ex Engl. & Diels) Verdc. This is a synonym for:

Accepted scientific name:
Sphaerocoryne gracilis (Oliv. ex Engl. & Diels) Verdc. (accepted name) 1 literature reference for Sphaerocoryne gracilis (Oliv. ex Engl. & Diels) Verdc.
Synonyms:
Melodorum gracile (Oliv. ex Engl. & Diels) Verdc. (synonym) 1 literature reference for Melodorum gracile (Oliv. ex Engl. & Diels) Verdc.
Popowia gracilis Oliv. ex Engl. & Diels (synonym) 1 literature reference for Popowia gracilis Oliv. ex Engl. & Diels
Infraspecific taxon: Sphaerocoryne gracilis var. engleriana (Exell & Mendonça) Verdc.
Sphaerocoryne gracilis subsp. gracilis (Oliv. ex Engl. & Diels) Verdc.
Common names: -
Classification:
Plantae
Phylum Magnoliophyta
Class Magnoliopsida
Order Magnoliales
Family Annonaceae
Genus Sphaerocoryne
Distribution: -
Additional data: -
Source database: AnnonBase, 1.1, Oct 2006
Latest taxonomic scrutiny: Verdcourt B., 1986
Online resource: http://herbarium.botanik.univie.ac.at/annonaceae/listSynonyms.php?ID=48991
CoL taxon LSID: urn:lsid:catalogueoflife.org:taxon:dea26c9c-29c1-102b-9a4a-00304854f820:ac2010