In 1902, C. Correns described a case when, after crossing plants with white and red corollas, the offspring had pink flowers.
Ngalo nyaka, ngo-1902, uCherakak Correns wachaza leli cala lapho, emva kokuwela izitshalo nge-corollas emhlophe nebomvu, inzalo yayinezimbali ezinemibala e-pink - ukubusa okungaphelele.