186 



MEMOIKS OF THE NEW YORK BOTANICAL GARDEN 



EXPLANATION OF CHART 2 



On this day the closing of all sets was observed except for Fuei-te, 

 Estelle, and Taft's Golden for each of Avhich the set of firsts had not 

 fully closed at the hour of 8 :00 P. M., when the latest observations for 

 the day were made. 



For a few varieties (Atlixco, Grande, Surjirise, Panchoy, and Fuerte) 

 there was an interval of about fifteen minutes when some pollen of second- 

 period flowers was being shed and first-period flowers were either closing 

 or opening. But for each of these the climax of the first period and the 

 maximum of pollen-shedding were some four or more hours apart. As 

 indicated, Collinson shed no pollen, which is a characteristic of this 

 variety. 



For Fuerte the set of firsts remained open all night and until aboiit 

 10 : 00 A. M. of the next day and the second opening of this set with 

 pollen-shedding occurred on the 11th. For Estelle and Taft's Golden the 

 set of firsts evidently closed for a period during the night or only parti- 

 ally closed to open fully on the next day as second-period and pollen- 

 shedding flowers. 



It will be observed that for several varieties at the bottom of the list 

 of B varieties there was an interval of several hours between the closing 

 of the set open in the forenoon and the opening of the afternoon set- 

 This is a marked and normal characteristic of these varieties. 



