380 STATE HORTICULTURAL SOCIETY. 



Butler, Clark, Clay, Daviess, Dunklin, Holt, Jackson, Livingston, Madison, Miller, 

 Pike, Ray, Scotland, Shannon, St. Charles, St. Louis and Wayne counties. 



185. Ptelea trifoliata L. 



Hop tree— Wafer ash. A shrub or small tree found in the State south and east 

 of a line drawn from the northeast corner to the southwest. Is found in Atchison, 

 Butler, Carter, Clark, Greene, McDonald, Miller, Pike, Shannon, St. Francois, 

 St. Louis and Wayne counties. 



SIMARUBA FAMILY ( SmARUBACE^ ). 



186. Ailanthus glandulosa Desf. 



Tree of Heaven. Formerly much planted, and as it was found to spread by the 

 root very badly, it has been discontinued. Reported as growing spontaneously in 

 Cape Girardeau, Dunklin, Greene, Howell, Jackson, McDonald, St. Louis and 

 Wayne counties. 



CASHEW FAMILY { Anacardiacb^ ). 



187. Cotinus cotinoides (Nutt.) Britton. 



Smoke-tree. A tall shrub or small tree, very much resembling the cultivated 

 JRhiLs cotinus, which has been found in Mississippi county. Also reported from St. 

 Louis county by Broadhead, but that must have been the real Smoke-tree in 

 cultivation. This is Rhus cotinoides Nutt. 



188. Ehus aromatica Ait. 



Sweet sumacli, — Polecat bush. Alow species of Sumach found in rocky places 

 in woods, and in the prairie regions. Is found in Clark, Greene, Howell, Jackson, 

 Livingston, McDonald, Miller, Oregon, Pike, Scotland, Shannon, St. Francois, 

 St. Louis, Wayne and Webster counties. 



189. Rhus copallina L. 



Copal sumach. A well-known species of Sumach in the prairie regions, where 

 it often gets to be 20 feet in height, and much taller ta&n Rhus glabra., commonly 

 called Black sumach. Has been found in Atchison, Barry, Barton, Bollinger, 

 Butler, Carter, Christian, Dade, Dunklin, Greene, Howell, Jackson, Jasper, Law- 

 rence, Madison, McDonald, Miller, Mississippi, Newton, Oregon, Pike, Ray, 

 Shannon, St. Francois, St. Louis, Stoddard, Texas, Wayne, Webster and Wright 

 counties. 



190. Rhus glabra L. 



Smooth sumach— White sumach. Another well-known shrub, found through- 

 out the State, in all kinds of soil. It is found in Andrew, Atchison, Barry, Barton, 

 Bollinger, Buchanan, Butler, Cape Girardeau. Carroll, Christian, Clark, Clay, 

 Dade, Dunklin, Greene, Holt, Howell, .Tacksou, Jasper, Jefferson, Lawrence, 

 Livingston,. Madison, McDonald, Miller, Mississippi, New Madrid, Newton, 

 Oregon, Pike, Platte, Ray, Ripley, Scotland, Scott, Shannon, St. Charles, St. 

 Francois, St. Louis, Stoddard, Texas, Washington, Wayne, Webster and Wright 

 counties. 



191. Rhus hirta ( L. ) Sudw. 



Stag horn sumach. Although credited to our region by Gray's Manual, I have 

 never seen it. This is Rhus iyphina L. 



