The floral scent of Taccarum ulei (Araceae): Attraction of scarab beetle pollinators to an unusual aliphatic acyloin

Isolated as a major constituent in the floral scent of Taccarum ulei (Araceae), (S)-2-hydroxy-5-methyl-3-hexanone is attractive to pollinator beetles of the genus Cyclocephala (Scarabaeidae).