SITF has determined this Challenge to Guarianthe skinneri to be Guarianthe hennisiana (Oct 2025) based on the identification by Dr. Wesley Higgins and the Fall (Nov) flowering in the Northern Hemisphere. Another difference, other than flowering season, is that the throat of the lip of G. skinneri is white and that of G. hennisiana below the band of lightly colored tissue (sometimes white, cream or possibly even yellowish) is pigmented.