SUPPLEMENT 



The following tables give the botanical name, insect 

 visitor, method, if any, of preventing or limiting self-fertili- 

 zation,* and vai'ious otlier facts for about two hundred and 

 Hfty species of our native wihl Howers. This matter is in- 

 tended only to indicate the lines along which personal inves- 

 tigation may be carried on, as it is impossible with the 

 scanty data at present available on this subject, to compile 

 anything exhaustive or final. Gray's classification has been 

 followed. 



In supplying the information given under the head of 

 " Insect Visitors," the ol)ject in view has been to give the 

 insects best adapted to serve the needs of the fiowers, not to 

 give a complete list of all the insects that may at various 

 times visit them. The names of the less important insects 

 as well as their scientific names, where given, are enclosed in 

 brackets. 



*Tlie later writers niakt- a distinctiou between "fertilization" and " polhna- 

 tion." " E^)llination " is used to signify the transfer of pollen from anther to 

 stigma, while "fertilization" is understood to mean the union of the nucleus of 

 the pollen grain with the nucleus of the ovule. This technical distinction, for 

 various reasons, it has not been thought necessary to observe in the present vol- 

 ume, the terms being used interchangeably. 



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