Morpho-anatomical study of Protium altsonii Sandwith plants

This study aimed to describe the morphoanatomical characters of fruits, seeds and seedlings, in addition characterizing anatomy leaves trunk species Protium altsonii Sandwith. The wood were collected Sustainable Development Reserve Iratapuru River (SDR), Amapá. Cross longitudinal sections cut with a rotary microtome. As for characteristics, it was observed that fruits are globose ovoid, slightly sharp apex short stipitate, they also present one and, more rarely, two pyrenes per fruit. mature seed P. altsonii, cross section abaxial region, is formed by seed-coat collapsed cells fleshy cotyledonary parenchyma, containing secretory cavities oil. In understory, young plants years six months compound, imparipinnate can 6 11 pairs leaflets. their turn, adult may or leaflets branch. cross-section wood, there numerous solitary multiple vessels; small medium; vascular elements simple perforation plate. morphological characteristics fruit, leaves, under allow us assure presents phenotypic plasticity as an ecological strategy. germinative efficiency field these have been caused release coumarin cotyledons.