206 



Pomona College Journal of Economic Botany 



derfully well. It will in time build huge buttresses at the base, like those of many 

 species of tropical Firus. Should be planted about fifty feet apart. 



Tipuana speciosa, Argentina, there called "Tipa," and considered one of the 

 finest among native trees. May attain one hundred feet, and builds a straight 



Figure 81. Sterculia gregori at Alhambra, California. 



trunk, crowned by feathery foliage of light green color and drooping bunches of 

 yellow flowers. Plant about forty feet apart. 



