WOOD AND BARK ANATOMY OF Mimosa bimucronata (DC.) O. Kuntze

Abstract

The general, macroscopic and microscopic structure of the wood of Mimosa bimucronata (DC.) O. Kuntze is described, as well as its bark anatomy. The wood anatomy is compared with literature references    to    allied   species   of   the   same   genus    and    family Leguminosae. The most important features observed, are the presence of only simple perforation plates in vascular elements, the alternate and vestured intervascular pitting, libriform fibres, homogeneous rays of procumbent cells, and the absence of stratified structure. The inner bark shows phloematic fibres in discontinuous tangential strands, envolved by crystalliferous parenchymatic series, and rays with irregular course. The flame-like pattern of the parenchymatic development is the most distinctive feature of the middle bark.