EXPEKIMENT STATION EEPORT. 339 



white, two mottled dark brown and one mottled ochre brown. In 

 3908 seed was saved almost exchisively from plants which, ])y their 

 flower (varying- shades of red), &c., gave evidence of ''Scarlet- 

 Itunner" parentage. Seeds of 63/43 IV. planted this season, 

 represented thirty individuals, all of which had borne flowers of the 

 required color shades, and in nine instances, the "grey-mottled" 

 seed was associated with the rod flower. The offspring from the 

 thirty parents (343 in number) were less variable in plant habit 

 than were those of former years, nearly two-thirds adhering to the 

 bush form. Fifty-six per cent, approached the parent in color of 

 flowers, while 44.7 per cent, were similar in markings to the kind 

 planted. In one instance (B-4-2-2) having "rose pink" flowers and 

 "light grey-mottled" seed, all but two of the plants gave reddish 

 blossoms, and 95 per cent, yielded a "light grey-mottled" seed, uni- 

 form as any standard variety. 



The tracing of B-4 through its offspring to the fourth generation 

 represents an effort to show that certain traits, as flower and seed 

 color, are more or less constant and are often inherited as asso- 

 ciated characters. From the standpoint of variation this hybrid 

 presents many problems. The flowers give not only the varying 

 shadeiS. of red, but the ordinary white and "pinks" of the snap 

 bean. A large number of the plants are classed as "Runners," a 

 tendency which shows the "Scarlet Runner" influence, Init the bush 

 type is the one desired and about half of the offspring have pos- 

 sessed that habit of growth. The pods, 99 per cent, green, have 

 given the varying forms and sizes to be found among the bush 

 varieties of P. vulgaris, some being long and flat, others short and 

 plump, while many present a striped appearance. The most con- 

 stant seed colors have been "Dark mottled" (including "Mottled- 

 purple"), "Grey mottled" and "White." Besides these all inter- 

 grades have occurred, as "Brown," "Mottled-brown," "Grey," 

 "Dark-eyed" and "N^ondescript." 



Last year (1908) wax podded plants, associated with the red 

 flower, were discovered, seed being saved for further planting and 

 study. From plant B-12-2-1, which had a salmon flower and a 

 short flat wax pod, twenty-one offspring were grown — ^all bush 

 plants medium to tall in height, with a green stem and large leaves. 

 In seventeen instances the flowers were "salmon pink" (fourteen 

 being white) while all bore wax pods. It is desired, by further 

 selection, to obtain a salmon flowered bush variety bearing a wax 

 pod. 



