3 is A.Longifolia (DMT)
7 is A.Obtusifolia (DMT)
5 MIGHT be A.maidenii (DMT, but please leave it alone, endangered)
1,2,6,8 is some type of desmanthus (dmt containing from memory)
you are lucky, if you do harvest, take a branch or part of a whole branch. use a cleaned knife/saw, and do a clean cut without tearing strips off the part you are cutting from. then you can proceed with stripping the outter bark of that branch with a knife. congrats
3 or 7 is your best bet in my opinion, both good yielding confirmed species.
edit: then ofcorase you are going to have to dry the bark and cut it up somehow, im in the process myself of figuring out how im going to get it to powder without buying a blender of some sort
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