The A. angustifolia (Raf.)1848 name is the oldest and the most recent review (Kral)1960 A. longifolia is what it's called now? I don't quite get it. Ambiguous synonym is a new one to me. Throw in A. spatulata and where did this end up?
Some have one name or another under review. I was just happy to know the genus and am surprised it's a PawPaw. Tiffany has seen quite a few interesting plants of late. So I think i'll have a look at Asimina tetramera.
Edit: The names were lectotypified by Karl in 1960.