Anatomia da madeira de Mimosa Balduinii Burkart

Abstract

25 INTRODUÇÃOO gênero Mimosa L. compreende cerca de 530 binômios válidos, em sua grande maioria da região Neotropical, havendo 31 espécies na ilha de Madagascar e um número menor no leste da África e sudeste da Ásia (Coutinho, 2009 The wood anatomical structure of Mimosa balduinii is described, based on material collected in Rio Grande do Sul State, Brazil. In addition to short vascular elements, simple perforation plates, alternating and vestured vessel pits, paratracheal parenchyma and libriform fibers, that are features of common occurrence in Fabaceae woods, the studied species shows large rays, mostly 3-4-seriated, and up to 70 cells height, a rare aspect among Mimosa woods, although observed in M. micropteris, that belongs to the same series Myriophyllae Benth. Unlike this species, however, Mimosa balduinii presents homogeneous rays.

Anatomical characterization of wood for identification of the Tachigali Aubl. species

“…In that study, the authors observed that the species Tachigali poeppigiana, Tachigali setifera and Tachigali subvelutina showed solitary, twinned, triple or even quadruple pores, diffuse porosity and rays visible only with 10× approximation. These characteristics, according to Reis et al (2011), andMachado et al (2017), are common for species from the Fabaceae family, which generally have paratracheal parenchyma, few pores, short and libriform fibers.…”