Piperaceae Giseke
Piper holtzei Dunlop , nom. inval., nom. nud., scientific
Dunlop, C.R. (1987), Checklist of the Vascular Plants of the Northern Territory. Technical Report: Conservation Commission of the Northern Territory 26: 59 [primary reference]
  • Comment: Dunlop attributes this name to "F. Muell.", but no reference is cited and no previous publication by Mueller or any author has been traced.
Spokes, T.M. in Wilson, A.J.G. (ed.) (2007), Piper. Flora of Australia 2: 236 [secondary reference]
  • Text: "The name Piper holtzei was written on several MEL specimens collected near Port Darwin by Maurice Holtze in 1891, but apparently this name was never published."