Eucalyptus camaldulensis Dehnh. and E. glob-ulus Labill. are economically important species for wood and pulpwood materials. Representative heights for assessing whole-tree values of cell-type proportions (ves-sels, fibers, ray and axial parenchyma percentages) using increment cores were examined by analysis of within-tree variations. Patt differences were evaluated between trees and species in both radial and axial directions by statistical data analysis (Moses test). In E. camaldulensis, within-tree variation of vessel percentage was generally higher in the upper and outer regions of the trunk. In contrast, E. globulus within-tree variation was unclear. In both species, although no clear patt of fiber percentages was observed, within-tree variations of ray and axial par-enchyma levels were higher in the lower and inner regions. Significant differences in patts were observed in the axial variation between species for vessel percentages and in the radial variation between trees of E. camaldulensis for ray parenchyma percentages. The representative heights for assessing whole-tree cell-type proportions were 0.8 m above the ground for E. camaldulensis and 2.8 m for E. globulus, regardless of differences in tree height and pat-t of within-tree variation of cell-type proportions.