I roto i tana pepaVersuche über Pflanzenhy patere"" (""Whakamātautau i te Plant Hybridization"), i whakaaturia i te tau1865 ki te Naturforschender Verein (Society for Research in Nature) i Brünn, Ka whakatakina e Mendel ngā tauira tuku iho o ētahi āhuatanga o tētahi o ngā āhuatanga o te pea, ā, ka whakamāramatia ā-pāngarau."