1 literature reference for Annona hexapetala L. f.:

Author: Linnaeus, C. von (filius)
Year: 1782
Title: Supplementum plantarum Systematis Vegetabilium editionis decimae tertiae, Generum Plantarum editiones sextae, et Specierum Plantarum editionis secundae. Editum a Carolo a Linné.
Source: according to tl2 Manitz 1976 has shown that the book has not been published in 1781 but in 1782