INFLUENCE OF CLIMATE 



201 



by it. But the differences in climate art- not recorded 

 in the flowering and the Leafing alone, bul often also 

 in the form and texture of the 

 leaves and in the character of 

 the fruit. The Newmau plum, 

 as I have seen it growing in 

 Maryland, I should refer un- 

 hesitatingly to Prunus angusti- 

 folia, but as it grows in New 

 York, I am in 

 doubl whether to 

 refer it to thai spe- 

 cies or to Prunus 

 hortulana. These 

 considerations in- 

 cline me the more 

 to discard my Prunus hortulana 

 as an original species, and to 

 ase it in tin- future merely to 

 designate a well-marked group 

 or rare of cultivated plums, I he 

 origin of which is to be Pound 

 in contemporary environments 



and in the natural mixing of 



t wo parent stocks : and thereby 

 the name hortulana — "belong- 

 ing to a garden" — becomes even 

 more significant than 1 in- 

 tended. I d<> aot propose this 



Bfl in\ final Conclusion, bul it States tin' «'a><' as 



it at tin- writing. To m\ mind, this view 

 <>f the origin of tin-'' valuable hortulana plums is 

 most satisfactory and inspiring, for it is a working 



Pig. 82. 



Ilnska. j;rii\\ D in 

 Marj land. 



