Does the genus Colquhounia or Prostanthera contain more species?
Prostanthera Prostanthera, commonly known as mintbush or mint bush, is a genus of flowering plants of the family Lamiaceae. There are about 90 species within the genus, all of which are endemic to Australia. The word is derived from the Greek for an appendage. Within the flowers are small spur-like appendages on the anthers.
Macrohasseltia Macrohasseltia is a monotypic genus of flowering plants in the willow family, Salicaceae. It consists of one species of tree: "Macrohasseltia macroterantha", which is native to Central America. Formerly placed in the heterogeneous family Flacourtiaceae, "Macrohasseltia" is now classified in Salicaceae, along with close relatives "Bennettiodendron", "Carrierea", "Idesia", "Itoa", "Olmediella", "Poliothyrsis", and even the willows ("Salix") and cottonwoods ("Populus") themselves.