Tricotylous Races Po Xol Jrisc by Selection. 399 



flowered. It was a richly branched compact tricotylous 

 specimen, which was only a meter high. It set an 

 abundance of seed, which produced a proportion of hemi- 

 tricotyls and tricotyls, much greater than that attained 



Fig. 83. Amaraiitus speciosus. Top of a plant of two 

 meters height from tlic tricotylous half race. 



in the previous generation. There were 89 aberrant 

 forms amongst 700 seedlings, that is, about 13%. 

 A very considerable advance had therefore been made 



