Duodichogamy and multi-cycle dichogamy are rare forms of temporal separation of staminate and pistillate reproductive functions in angiosperms. We studied the floral phenology, breeding system and pollination of Bridelia retusa (L.) A.Juss. and Bridelia moonii Thwaites, with a particular focus on the alternation of sexual phases to determine variation in their dichogamy. Three dichogamy patterns were identified in B. retusa, including one-cycle dichogamy (staminate → pistillate or pistillate → staminate), duodichogamy (staminate → pistillate → staminate), multi-cycle dichogamy (repeated flowering cycles alternating between staminate and pistillate) and pure staminates. Except for multi-cycle dichogamy, the other dichogamy patterns were prevalent in B. moonii. This study speculated floral mimicry system in Bridelia associated with blowflies.

双双配和多周期双配是被子植物雄蕊和雌蕊生殖功能暂时分离的罕见形式。我们研究了Bridelia retusa (L.) A.Juss的花物候、育种系统和授粉。和Bridelia moonii Thwaites，特别关注性阶段的交替，以确定其二婚性的变化。在B. retusa中确定了三种二分婚模式，包括单周期二分婚（雄蕊→雌蕊或雌蕊→雄蕊）、双二婚（雄蕊→雌蕊→雄蕊）、多周期二分婚（雄蕊和雌蕊之间交替的重复开花周期）和纯生锈。除多周期二婚外，其他二婚模式普遍存在于B. 穆尼。该研究推测Bridelia中的花卉拟态系统与苍蝇有关。