Com o objetivo de analisar a variação anatômica ao longo do caule de Terminalia ivorensis, estudaram-se amostras de madeira de três indivíduos, nos planos radial e axial. Para tal, corpos de prova foram obtidos a partir de discos de madeira, de 2 em 2cm, no sentido medula-câmbio. A metodologia usada para desenvolver o trabalho foi aquela tradicionalmente recomendada para estudos em anatomia vegetal. A descrição anatômica realizada seguiu as recomendações do IAWA Committee. No sentido radial do caule, alguns elementos anatômicos apresentaram tendências de variação definidas e significativas estatisticamente quando aplicado o teste Tukey para comparação de médias. São eles: freqüência, diâmetro e comprimento dos elementos de vaso, freqüência de raios/mm linear, comprimento dos raios em número de células, e comprimento e espessura da parede das fibras. Já no sentido axial, todas as variáveis analisadas não se mostraram estatisticamente significativas. Os resultados observados devemse, principalmente, à caracterização bem definida dos lenhos juvenil e adulto na madeira de Terminalia ivorensis.

In order to verify anatomical stem variation of the Terminalia ivorensis wood, were studied wood samples at three different heights in the radial and axial planes. Proof bodies were gotten at a 2cm interval from the pith towards the vascular cambium. The utilized methodology to develop the job followed the traditionally recommended methodology for vegetable anatomy studies. The anatomical description followed the recommendations of the IAWA Committee. In the radial stem direction, some anatomic elements showed a well defined trend, which are statistically significant when using the Tukey test for measures comparison. They were: frequency, diameter and length of the vessel elements, ray frequency/linear mm, length of rays in number of the cells and fiber length and thickness. On the other side, in the axial stem direction, was not found anything statistically significant. This results were observed principally due the clear presence of the juvenile and adult wood in the lumber of Terminalia ivorensis.

The vascular system in the rhizome of ginger (Zingiber officinale R.) is arranged in three distinct systems: an inner system that form the principal vascular system of the rhizome, an intermediated system originating a thin camada of anastomosing vascular strands, having direct contact with the inner system and an outer system free of the anastomosis with the another vascular systems. The intermediated and inner system are associated with the root insertion and whole systems are relacioned with the formation of bud adventicious maintaing the same pattern of the rhizome and the communication between the outer and inner system occurs through the bridging to inner system leaf traces.