There are at least 2 LSU Black figs and I believe there are more. There are no doubts about there being at least 2, in that the Scott's Black has the red flesh, which is the real validation of the identity of the Scott's Black, and the "other" LSU Blacks do not. I got this straight from Dr. Johnson.
I do not have much confidence in the "true" identification of any LSU fig by any nursery.
Durio Nursery may be the most reliable from what I hear from a lot of people. I do have a lot of confidence in Dan Abadie's and Brian Rodrique's identification of LSU figs.
In my opinion, which is important to me, and probably, only me, there is no single "Expert" on the LSU Figs. It amazes me that there would be any university program that ran for so long, with so little documentation. Maybe it did exist or still exists in some files somewhere. Maybe it was destroyed. Either way, there is no continuity or lineage of the documentation.
BTW, at the last Fig Field Day, I asked Dr. Johnson who Scott was/is. He said that Scott came down from Michigan on his vacations and worked with Dr's O'Rourke and Sandifer.
The LSU Scott's Black is at the top of my favorites list. It is an exceptional producer with really good figs. It is what I would call an "everbearing" fig in that it produces figs all season long and had the last/latest ripe figs of all my trees every year.