EXOGENOUS SERIES BROADLEAF WOODS. 101 



Red Mulberry, Mulberry. Morus rubra Linn. 



Nomenclature. (Sudworth.) 



Red Mulberry, Mulberry (local Virginia Mulberry Tree (Tenn. ). 



and common name). Murier Sauvage (La.). 



Black Mulberry (N. J., Pa., 



W. Va.). 



Locality. 



Massachusetts to Florida, westward intermittently to Nebraska 

 and Texas. Best in lower Ohio and Mississippi River basins. 



Features of Tree. 



Fifty to sixty feet in height, two and one half to three feet in 

 diameter. Sweet edible fruit. Dark brown broken bark, 

 smooth gray branches. 



Color, Appearance, or Grain of Wood. 



Thick heartwood, light orange yellow, thin sapwood whitish, 

 coarse-grained, compact structure, annual layers clearly 

 marked. 



Structural Qualities of Wood. 



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

 receives good polish. 



Representative Uses of Wood. 



Local ship-building, agricultural implements, fencing, cooperage. 



Weight of Seasoned Wood in Pounds per Cubic Foot. 



36. 

 Modulus of Elasticity. 



11,700,000. 

 Modulus of Rupture. 



I 1,000. 



Remarks. 



An ornamental tree. The leaves of this species are not adapted 

 to silkworm culture. (See Annual Report, Chief U. S. Forestry 

 Division, 1887; also Bulletins on Silk, published by the U. S. 

 Department of Agriculture.) 



