First mentioned ? 1890 in The Garden when discussing 'Monspur'
Foster used his naming plan for a number of species crosses he made:
Others used Foster's system
Van Tubergen:
Denis:
Despite problems with this system it continues to be used today but was and is often modified by different authors. For example Van Tubergen crossed Irises from the section Regegelia and the section Oncocyclus and produced the "Regeliocyclus" irises
-- BobPries - 29 Aug 2022