I'm not sure what you mean, but I will say this, the seeds definitely remind me of Plinia edulis, M. glazioviana, and a few others...nothing like the soft seeds of M. cauliflora, M. jaboticaba, and M. trunciflora, and others.
I've seen two seeds, side by side, who's combined size was the same as a single normal sized seed...and the seeds were almost like an identical twin (egg in the womb, after it splits)...maybe this is what you are referring to?
they all seem to sprout up as a single plant! I guess they're monoembryonic? I should know this...I just gave a speech on Jaboticabas