Leaves opposite or whorls of 4, smooth, margin slightly rolled under.
A large tree. Exotic?
Bark distinctive.
Located just outside the boundary of Witfontein Reserve - may account for the plentiful AIPs here.
Another Aussie import.
This one forms a spreading shady tree, but those I see in the Tokai Arboretum and Newlands Forest (plantation?) are straight and tall - just as 'foresters' like for timber production which explains the importation.