EXOGENOUS SERIES— BROADLEAF IVOODS. 9' 



Catalpa, Hardy Catalpa. Catalpa speciosa Warder. 



Nomenclature. (Sudworth.) 



Catalpa (R. I., N. Y., La., Western Catalpa (Pa., Ohio, 



111., Ind., Mo., Wis., la., Kans., Neb., 111.). 



Neb., Minn.). Cigar Tree (Mo,, la.). 



Hardy Catalpa (111., la., Kan., Indian Bean, Shawneewood 



Mich.). (Ind.). 



Bois Puant (La.). 



Locality. 



Central Mississippi valley, naturalized in many localities. 



Features of Tree. 



Forty to sixty feet or more in height, three to six feet in 

 diameter; well-formed trunks. Large, white, faintly mottled 

 flower, long pod or bean. 



Color, Appearance, or Grain of Wood. 



Thick heartwood brown, thin sapwood lighter, nearly white, 

 coarse-grained, compact structure, annual layers clearly 

 marked. 



Structural Qualities of Wood. 



Light, soft, not strong, durable in contact with soil. 



Representative Uses of Wood. 



Railway ties, fence-posts, rails, adapted for cabinet-work and 

 interior finish. 



Weight of Seasoned Wood in Pounds per Cubic Foot. 

 25. 



Modulus of Elasticity. 

 1, 160,000. 



Modulus of Rupture. 

 9000. 



Remarks. 



Hardier and better formed trunks than afforded by C. catalpa. 

 A rapid grower; sprouts vigorously from stumps. A valuable 

 tree, promising to become better known. Foliage subject to 

 attack by insects. 



* John P. Brown {The Forester, October, 1900). 



