66 
ANNE M. LUTZ 
stigmas exceeded the number of those having 4+-, and towards the 
close of the flowering season it was seen that the number of the for- 
mer greatly exceeded that of the latter. 
On a certain day, at the height of the flowering season of 1910, 62 
flowers unfolded on one hipartita mutant, and 52 of these had 4 + -rayed 
stigmas. On August 31 of the same year, 80 percent of the 214 flowers 
Fig. 4. F2 0. lata X 0. gigas, plant No. 4930, C.S.H., 1909. Flower 
showing normal arrangement of petals. 
produced by 9 hipartita mutants had 4-i--rayed stigmas, while less 
than I percent of the 312 produced by 9 Lamarckianas selected at 
random on the same day, were distinguished in this manner. All 
had been in flower about the same length of time. 
When a bud is held with the apex of the cone upward and the sepals 
are then stripped backward, it will be found that the petals are rolled, 
