The majority of the present commercially cultivated varieties originate from the artificial crossing progenies of G. jamesonii and G. viridifolia, both South African species since natural hybrids of the two species have not been found
The majority of the present commercially cultivatedvarieties originate from the artificial crossing progenies of G.jamesonii and G. viridifolia, both South African species sincenatural hybrids of the two species have not been found