A new subspecies of Acacia pentadenia (Leguminosae: Mimosoideae) from south-western Australia
REID, J.E., WARDELL-JOHNSON, G. AND MASLIN, B.R.
A previously recognised informal variant of Acacia pentadenia Lindl. is described following extensive field and herbarium studies focused on the forest region to the north-east of Walpole. The new subspecies, Acacia pentadenia subsp. syntoma, is most readily distinguished from subsp. pentadenia by a combination of morphological attributes, as well as habit , phenological and ecological differences. Field observations have shown the two subspecies to be occasionally sympatric. A key to the subspecies is provided together with a distribution map and comparative images.