SELECTING STOCKS. 241 



Pterostyrax hispidum, and the different North Ameri- 

 can species of Styrax. 



HALIMODENDRON (Silver- Leaf ). These Siberian 

 shrubs succeed best when grafted on stocks of the Car a- 

 gana arborea, or Siberian Pea Tree. 



ILEX (Holly). The common evergreen American 

 Holly (/. opaca), is without doubt the best stock for the 

 closely allied species and varieties, especially if they are 

 to be cultivated in cool or cold climates. But as seedlings 

 of this species are not so readily procured as those of the 

 European Holly (/. Aquifolium), the latter are more 

 generally used for this purpose. 



JUGLANS (Walnut, Butternut), Seedlings of the larger 

 growing varieties of the European Walnut (Juglans 

 regia), are usually employed as stocks for the different 

 cultivated varities. It is quite probable that the common 

 American Butternut (J. cinerea), could also be utilized 

 for the same purpose, but further experiments are needed 

 to determine its real value as a stock. 



LAEIX. See Conifers. 



MAGNOLIA. Seedlings of the common American Cu- 

 cumber-Tree (M. acuminata), are usually recommended 

 as the best stocks for all of the deciduous species of the 

 Magnolia, whether natives of China, Japan or America. 

 But Mr. J. E. Trumpy, of the Kissena Nurseries, of Flush- 

 ing, N". Y., who has probably propagated a greater num- 

 ber of species and varieties of the Magnolia than any other 

 man in this country or Europe, is quite emphatic in 

 giving the preference to the Umbrella Magnolia (M. 

 Umbrella), also called M. tripetala. He says that the lat- 

 ter species is more easily worked and produces a greater 

 number of fibrous roots, consequently is not so seriously 

 affected by transplanting. 



PLANERA (Planer Tree). All the species and varieties 

 from Japan and Siberia, as well as those indigenous to 



