Good question Paul..
I was referring to the dwarf black olive(bahama black olive), bucida bucera..(the Mary Madison tree you posted)
You appear to have the standard bucida spinosa with leaves reduced somewhat..this tree acclimates better to lower light
conditions
There is a dwarf bucida spinosa with leaves similiar to bucida bucera.
Here's a link to BCI's site...
http://www.bonsai-bci.com/species/bucida.html
hope this clears up my ramblings..
It has been ten years or so since i have worked on any.
I lost mine in Tn. :0(> ...toooo coooldd. We heated with
wood, so dips into the 40's and even the 30's was common.
I had one brought to me last fall..dying back slowly. It had been
a demonstration tree at a club meeting and the roots had been worked, prunned and rearranged into a smaller container. The tree was kept in a small greenhouse on the ground and the lows were in the upper 40's. This environment was fine for his other tropicals but NOT for a black olive whiich had just been worked
like this tree had been...sad to report..it died.
Propagation mats which will keep the roots above 60-70 is a plus for this species..right next to your buttonwoods and tamarinds...