We recorded the diversity of fl owering and fruiting plants during one year of phenological study at Paucarillo Reserve located in the northeastern part of the Peruvian Amazon (3°41’ S, 72°24’ W). A total of 270 species from 59 families were recorded, of which 57% were represented by only one individual plant. Arecaceae and Rubiaceae were the dominant families in this site.

En el presente trabajo damos a conocer la diversidad de fl oración y fructifi cación observada du- rante un año de estudio fenológico en la Reserva de Paucarillo (noroeste de la Amazonía Peruana 3°41’ S, 72°24’ W). Registramos un total de 270 especies en 59 familias, de las cuales el 57% son representadas solamente por 1 individuo. Las Arecaceae y Rubiaceae fueron las familias dominantes en este sitio.