1882 S. H. Vines tr. J. von Sachs (ed. 2) 917 According to Gärthner, the hybrid Nicotiana paniculato-rustica is more fertile than the reciprocal hybrid.
1994 73 518 Two Silene species, S. alba and S. dioica, and their reciprocal hybrids were used to investigate the inheritance of sex ratio.