UNREDUCED GAMETES 



417 



Table 64 



Progeny of Haploids 



Datura (Belling and Blakeslee, 1927). Selfed : 381 probable diploids, 12 



trisomies. 

 Solanuni Lycopersicum (Lindstrom, 1929). No selfed seed. 42 seedlings 



from 100 fruits with pollen of diploid. 

 Nicotiana glutinosa (Goodspeed and Avery, 1929). No seed when selfed or 



crossed reciprocally with diploid. 

 Nicotiana Langsdorffii (Kostoff, 1929). No selfed seed, few seeds when 



crossed with pollen of diploid. 

 Nicotiana Tabaciim (Clausen and Mann, 1924). No seeds. 

 CEnothera franciscana (Davis and Kulkarni, 1930). Selfed : 694 diploid, 



29 haploid, 17 mutant diploid. 

 Crossed with diploid : 531 diploid, 2 mutant diploid {cf. secondary structural 



change). 

 CEnothera franciscana (Stomps, 1930). Selfed: gave trisomies and triploids. 

 Triticum monococcum (Katayama, 1935). Open pollination : 3 haploid, 3 diploid. 



Table 65 

 Cases of Non-Reduction 



A. (i) Failure of Pairing 

 Parthenogenesis) . 

 a. General Hybrids. 

 Drosera (j;f) 

 Papaver 

 Saccharum . 

 Triticum- Secale 

 Nicotiana {jx, 5x, etc.) . 



Petunia 



Prunus {2x, jx, 6x) 



CEnothera {4X) 



Ribes .... 



Digitalis 



Canna aureo-vittata gigas 



Triticum-yEgilops . 



Aucuha japonica {4X) 

 Triticum hybrid {3x) 

 Triticum turgidovillosum 

 Brassica 

 /3. Purely Numerical Hybrids. 

 Datura {3x) 

 Solanum {3x) 

 Tulipa {3x) . 

 Tradescantia [3x) 

 Salix {3x) 



R.A. CYTOLOGY. 



(cf. Table 62) 



due to hybridity {v. also Haploids and 



Rosenberg, 1909. 



Yasui, 192 1 ; Ljungdahl, 1922. 



Bremer, 1923. 



Kihara, 1924. 



Goodspeed and Clausen, 1927 



Rybin, 1927 ; Brieger, 1928. 

 Matsuda, 1928. 

 Kobel, 1927 ; D., 1930 a. 

 Schwemmle, 1928. 

 Tischler, 1928. 

 Buxton and Newton, 1928. 

 Honing, 1928. 

 Kagawa, 1929 ; Kihara, 1931 



Kihara and Katayama, 193 1. 

 Meurman, 1929 a. 

 Thompson, 1931. 

 V. Berg, 1934. 

 Catcheside, 1934. 



Belling and Blakeslee, 1923. 

 Jorgensen, 1928. 

 Newton and D., 1929- 

 D., 1929 c. 

 HS,kansson, 1929. 



14 



