not sure… he has Boysenberry #43 also… which doesnt interest me that much…its a seedling but supposedly very good also.
He has decades ahead of me in being a fruit hunter and he is retired from Cornell U… so im sure he has had some amazing connections in the breeding world.
He has an amazing nursery in NY with all kinds of hard to find things… i posted about it a year or so ago with no interest from anyone.
Boysenberry #43 aka Clone 43 as well as Riwaka’s Choice discussed here… other than that not much to be found.
So obviously alot of plant material has been available to scholars here in the US.