OF ORNAMENTAL TREES. 221 



Growing twenty or thirty feet high, with 

 a very erect habit of growth. It thrives best 

 in a deep rich loam, inclining to moisture. 



14. S. XIGRA, Marshall. Stamens 3-4, or 

 6. Styles short. Leaves narrow-lanceolate, 

 tapering and acute at each end, smooth and 

 green on both sides, with the petiole and 

 midrib pubescent. Black willow. Native 

 of the United States. 



A small tree from fifteen to twenty feet 

 high, with a dark-colored rough bark, and 

 with the young branches dark purple. It 

 grows naturally in low grounds contiguous 

 to moisture. 



15. S. PENTANDRA, LinncEus. Stamens five. 

 Leaves ovate, pointed, crenate, glandular, 

 broad, shining, having a fragrance when 

 slightly dried. Shining willow. Native of 

 Europe and the United States. 



This grows about twenty feet high, and is 

 the most ornamental of the tribe. It delights 

 in a moist situation. Its flowers appear later 

 in the season than most other species. Our 

 S. lutida, Muhlenberg ; and S. Afeyeriana, 

 Willdenow, of Germany, are probably in 

 cluded in this. 



19* 



