Linked from
The 10 pages that link to Protogyny, each with the reason it gives.
AvocadoRelated: Avocado flowers change sexual phase, shaping opportunities for cross-pollination.
SpadixRelated: Different maturation times along some spadices can reduce self-pollination.
Humphead wrasseRelated: Humphead wrasses can change sex from female to male as they mature.
PhilodendronRelated: The separate phases in philodendron inflorescences help limit self-pollination.
PomacanthidaeRelated: Several angelfish species change sex within social groups.
Anthias anthiasRelated: Sex change occurs in the social organization of this species.
WrasseRelated: Sex change from female to male occurs in numerous wrasse species.