Long-term studies of the growth, reproduction and population dynamics of camu-camu (Myrciaria dubia) were initiated in 1984 at Sahua cocha, Rio Ucayali, Peru. The present contribution describes the floral biology of the species and reports two years of fruit production data. The flowers of M. dubia are hermaphroditic but display protogyny during anthesis which helps to reduce setf-fertilization. The prymary pollinators are two species of bees (Melipona and Trigona). Fruit production was highly related with plant size both in 1984 (r2= 0.97) and 1985 (r2= 0.99). It is calculated that natural populations of the species produce between 9.5 and 12.7 tons οf fruit/ha/yr depending on the fluctuations in the Rio Ucayali.