I picked up 2 sweet gum balls off the ground this fall while in the Smokies. I let them open up on their own and drop the seeds out. I have now a bunch of very small brown things that I don't know what they are...and there are black items that DO appear to be seeds. What's that small brown stuff? I assume the black ones that look like seeds are indeed the seeds. I want to plant some next spring. When I saw all those little brown things, I wasn't sure what they were. Just something to toss out? The black items that look like seeds to me are fairly flat.