TREES, SHRUBS AND VINES OF MISSOURI. 361 



37. Salix longifolia MuM. 



Lovg-leaved willow. A very common willow, and one of our most valuable 

 , species, inasmuch as it binds the shifting sands on the banks and sand-bars of 

 the Missouri ^nd Mississippi rivers, with its long creeping roots; on which ac- 

 count it is often called Sand-bar willow, and sometimes White willow, a name 

 properly belonging to Salix alba. It occurs in Andrew, Atchison, Boone, Bu- 

 ■chanan, Clark, Clay, Holt, Jackson, Platte and Putnam counties. 



,38. Salix lucida Muhl. 



Shining willow. This species i8 so difficult to distinguish from some forms of 

 Snlia; nigra, that I have some.doubc that this speciep occurs in Jackson county, as 

 reported by me. 



29, Salix nigra Marsh. 



Black willow. The largest of our willows, often attaining the height of 125 feet, 

 and having the greatest distribution, but its range appears to extend from the 

 northwestern to the southeastern part of the State ; does not appear to be present 

 in the southwestern part of the State, being supplanted by the next tree. It has 

 been observed in Andrew, Atchison, Bollinger, Buchanan, Cape Girardeau, Clay, 

 Dunklin, Holt, Jackson, Jasper, Madison, New Madrid. Pemiscot, Pike, Platte, 

 Eipley, St. Francois, St. Louis, Stoddard and Wayne counties. 



40. Salix nigra Wardi Bebb. 



Ward^s willow. A species confined to the southwestern part of the State, and 

 did I not have other reasons for thinking this a good species, this difference in 

 range alone would cause me to suspect it. Its present known range is from the 

 mouth of the Kansas river south, and from Little river west, and has been found 

 In Bollinger, Carter, Dade, Greene, Howell, Jackson, Jasper, Lawrence, Madison, 

 McDonald, Newton, Oregon, Shannon, St. Francois, Stoddard, Texas, Wayne and 

 Wright counties. 



41. Salix sericea Marsh. 



Silky willow. A species of the low lands adjoining the Mississippi river, and 

 has been found in Cape Girardeau, St. Louis and Washington counties. 



42. Salix tristis Ait. 



Dwarf gray willow. A low, bushy species, which has been reported from 

 Greene and Pike counties ; but I have never seen it. 



BIKOH FAMILY ( BiTULACE js ). 



43. Carpinus Oaroliniana Walt. 



Ironwood — Hornbeam — Blue beech— Water beech. A small-Sized tree, with a 

 smooth trunk and hard, heavy wood, having a range south and east of a line drawn 

 ■from the northeastern to the southwestern part of the State. It is found in Bol- 

 linger, Boone, Butler, Callaway, Cape Girardeau, Clark, Cole, Dunklin, Lincoln, 

 Madison, McDonald, Mississippi, Oregon, Pike, Ralls, Shannon, St. Louis, Stod- 

 dard and Wayne counties. 



44. Ostrya Virginiana ( Mill.) Willd. 



Ironwood— Hop hornbeam. A small-Sized tree, with rough bark and very hard, 

 lieavy wood, which has a range principally north and west of a line from the north- 

 H— 24 



