The variation within the widespread West Malesian species Cratoxylum a
rborescens (Vahl) Blume was analyzed and three distinctive variants we
re found. These are recognized formally as varieties, var. arborescens
, var. miquelii King, and var. borneense A.C. Church & P.F. Stevens. A
key and full descriptions are given. The characters employed to delim
it the three taxa are discussed and the selection of varietal rank is
justified.