SUMMARY
The authors present a study of anatomical characters for 24 species of Virola (Myristicaceae) from Amazonia. The following information is provided for each species: general characteristics of the wood, microscopic description, geogrphical distribution, habitat, and common uses. Four type of synoptic tables are provided: 1) ocurrence of representative anatomical elements in the wood, 2) related and synoymous species, 3) geographical distribution of Brazilian species studied and, 4) distribution acoording to ocurrence in differen vegetation types of Brazil. An atlas with 48 microphotographs of wood anatomical sections in included.