Tricot vlous Races Do \of .Irise 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. Ainaranius spcciosus. Top of a plant of two 
meters height from the 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 
