M. floribunda is a very slow growing species, rarely found cultivated in its region of origin, although wild trees are typically left in pastures that have been cleared of their vegetation.
I know of a single tree and have harvested fruit once. Bears heavily.
In my experience the small, hard seeds can take a while to germinate. After months of waiting for germination I kind of lost track of them. Eventually I got a few sprouts. A light scarification might prove beneficial in expediting the process. Next season i'll germinate a few dozen, as this is a very uncommon in interesting tree.