Oleaceae. 



317 



& 



W 



K^i 



Chionanthus. Fringe Tree. 

 (Family Oleaceae). 



Shrubs or small trees: decidu- 

 ous. Twigs moderate, more or less 

 4-sided: pith moderate, homogen- 

 eous, roundish, white. Buds often 

 superposed, sessile, round-ovoid, 

 rather small, with about 3 pairs 

 of pungently pointed keeled 

 scales. Leaf-scars opposite, cres- 

 cent-shaped, raised, rather small: 

 bundle-trace 1, transverse, com- 

 pound: stipule-scars lacking. 



Winter-character references: 

 Chionanthus retusa. Shirasawa, 

 274, pi. 11. C. virginica. Schnei- 

 der, f. 205. 



An excellent contrast between 

 the woods of closely related gen- 

 era is afforded by the cross sec- 

 tions of the strongly ring-porous 

 wood of Fraxinus (p. 385), the 

 weakly ring-porous wood of 

 Chionanthus (p. 401) and the diffused-porous wood of Foresti- 

 era (p. 403), as illustrated in Hough's uniquely "photo-de- 

 scriptive" Handbook of the Trees of the Northern States and 

 Canada. 



Buds ovoid, buff: scales short-pointed. (1). C. virginica. 



Buds subconical, dark: scales often long-attenuate. C. retusa. 



