Genus LIRIODENDRON, L. (Tulip Tree.) 



From two Greek words meaning lily and tree. 



Fig. 52. Tulip Tree, Whitewood, Yellow Poplar.* Z. tu- 



lifilfera, L. 



Leaves, SIMPLE ; ALTERNATE ; EDGE LOBED (lobes entire). 



Outline, rounded. Apex, cut almost squarely across, with 

 a shallow hollow, giving a square look to the upper 

 half of the leaf. Base, usually heart-shape. 



Leaf, three to five inches long and wide ; very smooth ; 

 with four to six lobes (two lobes at the summit ; at 

 the sides two, or two large and two small). 



Bark of trunk, dark ash-color and slightly rough. 



Flowers, four to six inches across ; greenish-yellow, marked 

 within with orange ; somewhat tulip-like, fragrant, 

 solitary. May, June. 



Found, from Southwestern Vermont to Michigan, south- 

 ward and westward. Its finest growth is in the 

 valley of the lower Wabash River and along the 

 western slopes of the Alleghany Mountains. 



Among the largest and most valuable of the North 

 American trees. It is usually seventy to one hundred 



* The name should be dropped. The tree is not a poplar. 

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