Abstract
Owing to the importance of Poales within Monocotyledons, new anatomical data are essential to the taxonomy and phylogeny of the group. In this context, species of Eriocaulaceae, Xyridaceae, Cyperaceae, Poaceae, Juncaceae and Rapateaceae will be studied anatocamically, since these families are representative in Poales. They include several species restricted to Brazil and thus represent an…