THE AMERICAN BOTANIST 



127 



petals and thus prevent anyone from picking the flower for I 

 wanted it to ripen its seed so that I could plant them some- 

 where in the woods and notice whether it would reproduce 



A four-parted Trillium. 



its kind, but in the meantime some vandal had taken that 

 which I had counted as my own. I shall watch for the plant 

 next year and see if I cannot get a better picture. A young 

 plant right beside this one had the usual three leaves." 



THE WHITE PINE BLISTER 



r I 'HERE appears to be a considerable number of very de- 

 A structive plant diseases in Europe which have not as yet 

 spread to this country, but the ravages of those that have reached 

 us are serious enough to incline us to keep the others out if 

 possible. Two deadly fungus diseases have in recent years 

 threatened the very existence of some of our most valued forest 

 trees and the American Forestry Association is now endeavor- 

 ing to prevent the further importation of any kind of plant in 

 order to protect the forest from further disaster. In this they 



