306 



Belling. 



Tlie Lyon "bean" (Stizolohium niveum (Roxburgh) Kuntze) is 

 grown in the Pliilippines and elsewhere in South Asia (12). It resem- 

 bles the Velvet bean in habit and size. It differs obviously in the 

 WTinkled leaves, the long racemes of wiiite flowers, the stout pods 

 (Fig. 2) about 9^'2 cm. long and covered with a very fine down, and 

 the white seeds (Fig. 2). It differs genetically from the Velvet bean in 

 probably more than twenty factors (2). 



The Yokohama "bean" (Stizolohhim hassjoo Piper and Tracyj is a 

 dwarf in comparison with the two preceding plants. It will barely 

 twine to the top of an eight-foot pole. It is cultivated in the north 



Fig. 1. Pod of Velvet bean. Natural size. 



island of Japan (12). It is about two months earlier than the Velvet 

 bean. Its pods (Fig. 3) ai'e about I0V2 cm. long, with very stout hulls 

 covered with a coarse weak pubescence, and rather small whitish seeds 

 (Fig. 3). It has violet-purple flowers and rather leathery leaves. It 

 differs genetically from the Velvet bean in many of the same factors 

 as does the Lyon beau. 



The China or Chinese "bean" (Stizolohimn niveum var.?) from 

 Tehwa, China, is at present regarded as a variety of the Lyon bean. 

 It differs obviously in leaves, pods (Fig. 4), seeds, and time of flower- 

 ing. Since only the first generation of the cross between this plant 

 and the Velvet has been grown, the genetic differences are not yet 

 ascertained. 



In the crosses which were investigated at the Experiment Station, 

 the Velvet bean was always made one of the parents, because of certain 



