Abstract
An hypothesis is suggested to explain the sometimes puzzling occurrence of brush box within very diverse habitats, but the specific factors that govern the distribution of turpentine and brush box have not been determined. Brush box may become established on a wide site range, but it forms a tree of merchantable proportions only where the soil fertility is relatively high; moreover, where soil fertility is not limiting, brush box can develop to a large size within habitats that are apparently very adverse in other respects.