Floral and reproductive biology and pollinators of Campomanesia guazumifolia (Cambess.) O. Berg., neglected species

Abstract

The aim of the study was to elucidate aspects of floral and reproductive biology and floral visitors of this species. Information was obtained on floral morphology and morphometry, anthesis, nectary, and structures attractive to pollinators, characterization of pollinators, receptiveness of stigma and maturing of the androecium components, and characterization of the reproductive system. Sete-capoteiro tree has hermaphrodite flowers, and the floral opening occurs mainly during the night period, however, it also occurs in the morning. Pollen grains was the main resource offered to pollinators. The flowers had mellow sweet odor, attracting mainly native bees and Apis melifera, which was characterized as effective pollinators. The species presents high reproductive efficiency and could be considered self-compatible; however, fertilization also occurs by cross-pollination.