A Review of Reproductive Biology in Myrtaceae‐I: Insights From Phenology to Pollen Dynamics

The family Myrtaceae (Myrtle family) comprises approximately 150 genera and 6019 recognized species. This comprehensive review synthesizes data from 345 studies published between 1956 and 2026 to evaluate the reproductive biology, phenology, floral biology, palynology, and stigma dynamics across the family. The findings highlight substantial interspecific variation in floral morphology, phenological traits, and anthesis behavior, demonstrating that reproductive strategies within Myrtaceae are far from uniform. Palynological assessments reveal diverse aperture configurations, though triangular, tricolporate pollen grains predominate; additionally, pollen viability and stigmatic receptivity vary significantly among taxa. Existing literature remains disproportionately focused on commercially significant genera such as Eucalyptus , Syzygium , Eugenia , Melaleuca , Callistemon , and Myrcia , leaving critical knowledge gaps regarding wild, non‐commercial species that require targeted empirical investigation.