Acacia pachyacra (sp. 40) has some affinities but differs in its quadrangular phyllodes, its apex gland bearing below the small recurved thickened mucro. The broader phyllode form of A. murrayana has some affinity with A. jennerae (sp. 57) a N.T. and W.Aust. species which differs mainly in the lanceolate phyllodes which possess 1-3 glands in the upper margins. A. leptopetala is an endemic W.Aust. species (personal communication, B. R. Maslin, Perth).