The pods are like that of ..say unshelled pea's seeds inside a pod (legume). Pod should be dried first then opened to get the seeds. But it does sound like you will get plants from each seed inside the pod. Thats why the multi seed thing is happening.

OK, couldn't contain my curiosity any longer. Now THAT is what I call a tap root! Apparently it is one plant, but there are 3-4 stems coming from this seed.
{{gwi:1317252}}

That is quite a tap root. Are you repotting it?

How cold tolerant are these trees? anyone growing one outside in zone 10a or 9b?

Min,

It might be more than one embryo per seed. At any rate, let them get much bigger then remove all but the strongest leader.

Most commercially available Browneas are from air layers. Seedlings would be preferred for better root system and overall tree structure. Make sure that the root system doesn't start circling inside the pot. Don't let any go to waste! If you want to "get rid of some" let me know.

Jerry