Back in about 1978, there were some specimen in the gully along the beginning part of Blue Range Road, under Radiata pines. Also in the quarry on Mt Ainslie before the fire went through in the 1990s (as I recall)
The collection at Mount Ainslie still remain - A fairly healthy number. I have been walking along the gully at the Blue Range Road and have yet to find one in there - The blackberry has inundated the area though, so progress is difficult. Keeping an eye open for more locations.