17 



Thuya occidentalis Elwangeriana, Hort. Tom Thumb Arbor Vi- 

 *tce. A very dwarf variety of Thuya, originated with Elwan- 

 ger and Barry, with erica-like foliage that turns decidedly 

 brown in winter. The color in summer is a dull green. 



Thuya occidentalis Siberica, Hort. Siberian Arbor Vitce. In ef- 

 fect this is a dwarf and denser form of the American Arbor 

 Vitse and is used commonly for the same purposes with better 

 results. 



