This paper studied the stem distribution in 152ha of "cerrado" area in the Água Limpa Farm (15º56'14"S and 47º46'08"W), Brasilia-DF, Brazil. Sampling was done only on individuals with, at least, 5cm of stem diameter, 30cm above ground. It was sampled 21 permanent plots, 1,000m² (20 x 50m) each, randomly allocated. The 17 species with the highest importance value (IVI) was studied too. The Liocourt "q" quocients were calculated to permit distribution evaluation. For each species studied, the present situation was evaluated and hypothesis were made about the problems affecting the population.
Distribution; diameters; "cerrado"