OAKS. 



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Plate 32. Quercus macrocarpa. Bur Oak. 



1. Flowering branch, one-half natural size, 2, Staminate flower, enlarged. 

 3. Pistillate inflorescense, enlarged. 4. Fruiting branch, one-half natural size. 



Distribution. From New Brunswick and Nova Scotia 

 westward to Manitoba, Montana and Kansas and southwest- 

 ward to Tennessee, Indian Territory and Texas. In Minne- 

 sota common or abundant in all except the extreme north- 

 eastern part. 



Propagation. Very easily grown from seeds planted in 

 autumn. The seedlings in good prairie soil attain a height 

 of about 4 feet in five years. 



Properties of wood. Heavy, hard, rather brittle, coarse 

 grained and very durable in contact with the soil; color, rich 



