This odd tree may be found from Costa Rica to northern Colombia, here at Barro Colorado Island, Panama. Those giant thorns may have been developed to ward off the prehistoric megafauna. Rutaceae Family.
Sticky Boronia (Boronia anemonifolia) cultivated in a private garden in Latham, ACT, Australia. Photographed on 10 October 1978.Digitised from a slide. The original slide, which is of higher quality, is held.
Watt Park, Lavender Bay, North Sydney.Native of southern and eastern Africa. I have sometimes been struck by the resemblance of its capsules to those of our Australian Flindersia australis, also in family Rutaceae -- see www.flickr.com/photos/41188800@N00/354726140/But there are important differences: Calodendrum capsules split open from the base and the seeds are hard, rounded and black; Flindersia capsules open from the apex and the seeds are flattened, winged and brown. Leaves and flowers are also very different.