LIRIODENDRON TULIPIFERA, L. 

 Yellow Poplar. Tulip. White Wood. 



Size. Average 100 to 125 ft. by 3 to 6 ft. Maximum 190 ft. by 

 10 ft. Average clear length 70 feet. 



Growth. Rapid in early life, decreasing after 50 years. Often 

 lives over 300 years. 



Root System. Heart. 



Bole. Nearly cylindrical. 



Crown. Spreading. 



Tolerance. Intolerant. 



Wood. Yellow or brown with thin creamy white sapwood. Light, 

 soft, brittle, and easily worked; 35 pounds. 



Reproduction. Prolific annual seeder. Flowers in April and May, 

 and the seeds ripen and fall in the autumn. Young trees produce worth- 

 less seed. Seed is borne in a cone-like fruit 1 to 2 inches long; should be 

 collected in the fall. Germination percent 5 to 10; vitality medium. 

 If planted in the spring they have a tendency to be in the ground a year 

 before germinating. Seedlings may endure considerable shade. 



Range. Southern Ontario and westward through northern In- 

 diana and Illinois, southward into Alabama and the other Gulf states as 

 far as northern Florida. Optimum, in south central part of its range. 

 Tree of medium altitudes; best developed in protected coves on the 

 northern and eastern slopes. 



Climate. Mild; small variation of temperature; humidity medium 

 to high. 



Soil. Demands a deep, fertile, well drained soil. Mesophytic. 



Association. Well adapted for planting in pure stands. It occurs 

 naturally either singly or in groups associated with chestnut, oak, 

 walnut, maples, hickories, black cherry, locust and beech. 



General. Very valuable wood but nearly exhausted in Canada. 

 In 1912 it supplied less than 0.1% of the total cut, and its average mill 

 price was $13.17 ($30.00 in 1910) per thousand. In the United States 

 in 1910 it ranked 10th with over 700 million feet or 1.8% of the total cut 

 at an average mill price of $24.71 per thousand. 



PLATANUS OCCIDENTALS, L. 

 Sycamore. Buttonwood. 



Size. Average 100 ft. by 2 ft. Maximum 175 ft. by 9 ft. 



Growth. Medium but persistent. 



Root System. Heart. 



Bole. Slight taper. 



Crown. Spreading. . 



Tolerance. Medium. 



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