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20 

 PANAX. 



P. Sessiliflorum.— A shrub or small tree from Amur, well 

 worth introducing. There is a specimen in the Botanic Gardens, 

 St. Petersburg, about 15 feet high, and Mr. Maximowitch tells us 

 that it blossoms well there, but does not mature its fruit. It 

 grows in Mantchuria, but not North of lat. 49 ° . 



PHELLODENDRON. 



Mr. Goegginger, of Riga, tells us that in the Botanic Garden 

 at Dorpat, half way between Riga and St. Petersburg, there is a 

 tree of this variety 8 to 12 inches in diameter of trunk, and 25 

 feet in height. Again, at Orel, in Central Russia, we find a 

 young tree about 15 feet. Clearly hardier varieties than those 

 now grown in United States. The trcd I have at Abbottsford kills 

 back every winter. 



iw 



POPULUS-Poplar. 



The poplar is our most valuable tree where quick shade is 

 needed. Different species abound in varieties ; some of the best 

 we have not. 



P. ALBA. — ^The silver poplar is a tree of very wide habitat ; 

 the varieties indigenous in cold, dry regions we have not tried. 

 In the Botanic Garden at Kazan, there is a row of 1 1 trees, in 

 all in the garden 20 trees, about 18 inches in diameter of trunk ; 

 trunk straight and tapering, the leaf la.ger than our varieties, and 

 acerifolia only where making strong growth. The quality of the 

 wood of the white poplar is well known, but the trouble is the 

 difficulty of getting a straight piece from the Western European 

 form. On dry soils the White poplar we have, becomes very small 

 in leaf, and looks unhappy, while the varieties we find on the 

 Volga, maintain a large acerifolia leaf and good growth on very 

 dry soil, and stand severe drought better than any of the Siberian 

 poplars, better than any other tree we find there except the wilS 

 Volga pear. Cuttings from Kazan and other points in Eastern 



