As a remnant of this taxonomic confusion,some early references cite Pittosporum phillyreoides with Pittosporum angustifolium
as a synonym(Maiden, 1889). However,most previous literature uses only the name Pittosporum phillyreoides or its orthographic variants. These references can be clearly distinguished as referring to Pittosporum angustifolium on the basis of geography,
because Pittosporum angustifolium occupies an Australia-wide distribution. Thus,it is possible that most,if not all,references describing traditional Aboriginal use of Pittosporum phillyreoides are more applicable to Pittosporum angustifolium, particularly if such information is derived from the pharmacopoeia of Aboriginal
tribes whose territory is within distinct locations in central, southern and eastern Australia.