Parr Il. THe EvipeENncrE rrom Cy roLocy 
Chromosome Numbers 
Following is a list of the chromosome numbers which 
have been reported for Avena species, together with 
authorities for the counts. The list of authorities is in- 
complete, but in cases of disputed counts it indicates 
which count has been verified by several authors. 
14. 
me RR Re 
A, 
. clauda 
. pilosa 
. longiglumis 
. ventricosa 
. Bruhnsiana 
. hirtula 
. strigosa 
. Wiestit 
. Vaviloviana 
. abyssinica 
. barbata 
sterilis 
. byzantina 
. fatua 
. sativa 
2n= 14 
2n=— 14 
2n= 14 
2n= 14 
2n= 14 
2n= 14 
In= 14 
2n= 14 
2n= 28 
2n=28 
2n= 28 
2n= 28 
2n= 32 
2n=42 
In= 44 
2n=42 
2n = 44 
2n=— 42 
Q2n=48 
Qn=42 
2n=48 
Nikolaewa, 1922; Emme, 1930. 
Nikolaewa, 1922. 
Ellison, 1940. 
Emme, 1930. 
Emme, 1930. 
Emme, 1930; Ellison, 1940. 
Kihara, 1919; Nikolaewa, 1922; Winge, 
1925; Aase and Powers, 1926; Hus- 
kins, 1927; Nishiyama, 1929; Emme, 
1930; Spier, 1934; Ellison, 1940. 
Dorsey, 1925; Aase and Powers, 1926; 
Huskins, 1927; Kiharaand Nishiyama, 
1932; Spier, 1934; Ellison, 1940. 
Emme, 1930. 
Emme, 1930. 
Stanton and Dorsey, 1927; Emme, 
1930; Kihara and Nishiyama, 1932; 
Spier, 1934; Ellison, 1940. 
Kihara, 1919; Dorsey, 1925; Huskins, 
1927; Nishiyama, 1929; Emme, 1930; 
Spier, 1934; Ellison, 1940. 
Nikolaewa, 1922. 
Kihara, 1919; Huskins, 1927; Nishi- 
yama, 1929; Emme, 1930; Spier, 1934. 
Nikolaewa, 1922. 
Kihara, 1919; Dorsey, 1925; Huskins, 
1927; Nishiyama, 1929; Emme, 1930. 
Nikolaewa, 1922. 
Kihara, 1919; Huskins, 1927; Nishi- 
yama, 1929; Emme, 1930. 
Nikolaewa, 1922. 
Kihara, 1919; Winge, 1926; Aase and 
Powers, 1926; Huskins, 1927; Nishi- 
yama, 1929; Emme, 1930; Spier,1934. 
Nikolaewa, 1922. 
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