39 



Number of flowers with three pistils 1 ; per cent 0.12 



Number of flowers with four pistils 11; per cent 1 .25 



Number of flowers with five pistils 197; per cent 22.3 



Number of flowers with six pistils 422; per cent 47.78 



Number of flowers with seven pistils 214; per cent 24.23 



Number of flowers with eight pistils 36; per cent 4.08 



Number of flowers with nine pistils 1; per cent 0.12 



Number of flowers with ten pistils 1 ; per cent 0.12 



It will be noted above that only one hundred ninety-seven 

 of the flowers examined have five pistils as listed for the genus 

 Aquilegia. The larger portion, four hundred twenty-two, have 

 six pistils and one had as many as ten pistils. 



Of the one hundred ninety-two plants examined six had a 

 constant number of five pistils for every flower on the plant; 

 nine had a constant number of six pistils; and one had a con- 

 stant number of seven. The remaining one hundred seventy-six 

 had flowers with a varying number of pistils; for example, a plant 

 from Cushman canyon had eleven flowers with pistil numbers of 

 six, five, seven, six, on one main stem; five, seven, five, five, on 

 another, and six, five, five, on another. 



As far as could be determined by this study, the location, 

 such as rocky hillside, aspen grove, swampy island, did not have 

 any effect in the number of pistils, nor could any differences as 

 to pistil number be noted between smaller and larger plants. 



Attempt has been made through the study of sections of 

 anthers and ovaries to determine if there are cytological differ- 

 ences between a flower having five and one having seven pistils; 

 but so far the work has not been successful. Seed was collected 

 from a plant having a constant number of six pistils and pol- 

 lination will be controlled when the seedlings mature to try to 

 determine if the difference in pistil number is heritable. 



Western State College of Colorado, 

 Gunnison, Colorado 



