410 



TREES OF NORTH AMERICA 



A tree, often 30 high, with a trunk 18' in diameter, stout wide-spreading branches 

 forming a symmetrical round-topped rather open head, and stout bright chestnut-brown 



Fig. 362 







branchlets dark gray-brown in their second year, and occasionally armed with scattered 

 thin straight chestnut-brown spines l'-2' long. 



Distribution. Open woods; banks of the Desperes River near Carondelet, St. Louis 

 County, Missouri; in St. Claire County, Illinois (north of stock yards, East St. Louis, and 

 near Kahokia). 



11. Crataegus Bushii Sarg. 



Leaves obovate, broad and rounded or acute at apex, or elliptic and acute, gradually 

 narrowed from near the middle to the cuneate entire base, and coarsely serrate above, 



Fig. 363 



when they unfold dark green on the upper surface, pale on the lower surface, and villose with 

 short white hairs on both sides of the midrib and veins, nearly fully grown when the flowers 

 open at the end of April, and at maturity coriaceous, lustrous, glabrous, 1 j'-l|' long, and 

 \'-V wide, with a stout yellow midrib and few slender prominent primary veins; petioles 



