66 



The Journal of Heredity 



WIDE GROUP OF BEANS EMPLOYED 



From left to right, the pods represent the ordinary Florida Velvet bean {Stizolobiiim deering- 

 ianum), the Lyon {S.niveum) a form which was introduced from the Pliilippincs by the 

 Department of Agriculture; the Yokohoma (S.hassjoo), a Japanese variety; and the China 

 {S.niyeum var.). The genus producing these "beans" is found in nearly every part of the 

 tropics; its species can be divided into two groups — those which produce stinging hairs, 

 and those which do not. The latter type is cultivated as a fodder, or to enrich the soil; 

 its pods are eaten by the natives of India and other countries. (Fig. 5.) 



with the full grains in the anther; and 

 the sterile ovules were distributed at 

 random in the ovaries. The ovary 

 usually contains five or six ovules 

 (rarely four or seven). A random 



distribution, sueh as would be caused 

 by the segregation of Mendelian factors, 

 and by no other cause known to me, 

 would give for five ovules, (counting 

 from the tip of the ovary) and 18 ovaries : 



No. of ovaries with . 



A random distribution would give 

 equal numbers of fertile and sterile ovules 



for each i)osition in the pod, counting 

 from the tip. The actual numbers are: 



Fertile. 

 Sterile. 



