UNDEFINED STRUCTURAL HYBRIDS 173 



T. durum (14) x T. turgidum (14). D., 1931 d {v. Table 23). 

 Lolium per e fine (7) X Festuca elatior (7). Peto, 1934 (^- C^- -^)- 

 Dianthus neglectus (15) x D. Carthusianorum (15), 15". Rohweder, 1934. 



(N.B. The larger chromosomes of the paternal parent are said to retain 

 their size difference in the hybrid.) 



Platanus orientalis (21) X P. occidentalis (21), 21". Sax, 1933. 

 Chrysanthemum Makinoi (9) x C. lavandnlcBfolium (9), 9". Shimotomai, 



1933- 

 C. pacificum (45) x C. yezoensis (45), 45". Shimotomai, 1933. 

 Rumex acetosa (6 + X) X R. montanus (6 + YY), 6" + XYY. Yamamoto, 



1935. 



EuchlcBna mexicana (10) x Zea Mays (10), 9-10". Beadle, 1932. 

 EuchlcBna mexicana (Durango X Florida), 6-1011. Beadle, 1932. 

 Allium fistulosum (8) x A. Cepa (8), 8". Emsweller and Jones, 1935. 

 Crepidiastrum lanceolatum (5) X Paraixeris denticulata (5). Ono and Sato, 



1935- 

 Gossypium herbaceum (13) X G. arhoreum (13), 13". Skovsted, 1933. 

 Salvia grandiflor a (8) x S. officinalis (7), 7" -(- i^ Hruby, 1935. 

 5. nutans (11) X 5. lurisicii (11), 10" + 2^ etc. Hruby, 1935. 

 5. lurisicii (11) X S. nemorosa (7), 7" + 4^ Hruby, 1935. 

 5. nemorosa (7) X 5. Baumgartenii (8), 7" + i^. Hruby, 1935. 

 S. nutans (11) X 5. Baumgartenii (8), 9" + ii (autosyndesis). Hruby, 1935. 

 Salix nigricans (57) X 5. phylicifolia (57), 57" (some IV). H&kansson, 1933. 

 Quamoclit angulata {1^) X Q.pinnata {15), 14" + i^- Kagawa and Nakajima, 



1933. 

 {2) Partial Pairing (always variable). 

 Lepidoptera. 

 Saturnia pyri (30) x S. pavonia (29), 5-6". Pariser, 1927. 

 Smerinthus ocellata ocellata {z'j) X S. 0. planus (27), 5-18". Federley, 1914, 



1915- 

 Angiosperms. 

 Crepis hybrids (4, etc.), 0-4". Babcock and J. Clausen, 1929 {v. Table 22) ; 



Avery, 1930. 

 Papaver somniferum glahruni (11) x P. nudicaule (7), 3-4". Yasui, 1927. 

 Ribes sanguineum (8) x R. Grossularia (8) {" R. Gordonianum "), 0-8". 



Meurman, 1928. 

 R. nigrum (8) x R. Grossularia (8) (" R. Culverwellii "), 0-8". Meurman, 



1928. 

 Digitalis purpurea (28) X D. ambigua (28), 5-12". Buxton and Newton, 



1928. 

 Viola arvensis (17) x V. rothomagensis (17), 14-15". J. Clausen, 1931 c. 

 V. nana (24) X V. lutea (24), 15-17". J. Clausen, 193 1 c. 

 jEgilops cylindrica (14) X JJ. ovata (14), 7-13". Percival, 1930. 

 JE. cylindrica (14) x M. triuncialis (14), 6-11". Kagawa, 1931. 

 Salvia Bulleyana (8) x 5. glutinosa (8), ca. 5" + 6^ Hruby, 1935. 

 5. nemorosa (7) x S. nutans (11), 6" + 6^ Hruby, 1935. 

 Triticum cegilopoides (7) x ^gilops squarrosa (7), 0-6". Kihara and Lilien- 



feld, 1935. 



(3) Potentially Complete Failure of Pairing 



Lepidoptera. 

 PygcBra anachoreta (30) X P. curtula (29), 0-2") 

 P. pigra (23) X P. curtula (29), 0-2" | ^^ederley, 1912. 



