"Plants numbered by the late Gus Krossa, who imported many hostas from Japan and Europe which he obtained from academic sources and collectors the world over. His connections to Osaka University brought a number of wild taxa into the United States. He numbered many of them, lacking identification, and after their names became known they were renamed...The numbers were compiled from Krossa's lists and his correspondence with Alex Summers, who generously provided originals and/or copies."