Venation and anatomy of leaf of <I>Miconia cabuçu</I> Hoehne (Melastomataceae)

Abstract

The aim of this study was to follow the anatomical and architectural features of Miconia cabuçu Hoehne leaves. The leaf is elliptic, symmetrical, with acuminate apex and a cordate base. Into the petiole are observed two groups of seven bicollateral bundles, with an arch shape. The central and lateral veins show not great diversity. Idioblasts occur and some of them include huge druses of calcium oxalate. The palisade tissue is three layered, and your cells contain a great amount of chloroplasts. Collecting cells occur between palisade and spongy parenchyma. In the edge was observed hydathodes. The stomata are observed in the abaxial epidermis, which have too a great amount of stellate hairs. Based on the anatomical data, inferences on the adaptatives features can be made.