ANNUAL WINTER MEETING AT WARRENSBURG. 267 



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In south Missouri burr oak {Q. macrocarpa) is generally found on 

 rich bottom lands. In northern Missouri, alter passing north of Milan, 

 Gallatin, Trenton, Mavsville and St. Joseph, we find it very abundant 

 on the hills. This fact we have observed as far north as Minneapo- 

 lis, Minnesota, and it seems to be the prevailing tree on the hills 

 throughout. On the hills the bark seems whiter than on lower ground 

 and the tree is not so handsome. 



The choke cherry {cerasers virginica) abounds in north Missouri 

 but is found no further south of a line passing through Knox to the 

 north of Medicine creek to Kingston and St. Joseph with one excep- 

 tion on Missouri bluifs, near Grand Pass. 



The persimmon 1 have not found northwest of Liberty nor west of 

 Linn nor west of north line of Wabash railroad. It abounds east and 

 southward, and is abundant as first growth on prairies in Southwest 

 Missouri. 



The dwarf variety of chincapin oak abounds in Northwest Mis- 

 souri. 



Sassafras abounds in east and south Missouri, its northwest line 

 passing through Shelbyville, Huntsville, Brunswick, Malta Bend, 

 Cedar county, to southwest corner of Barton. 



The red cedar may occur throughout, more abundant in southeast, 

 but very rare in northwest. 



The blue ash occurs in east Missouri, and is probably limited by a 

 line through Palmyra, Glasgow and southwest. 



The trumpet creeper, common in east Missouri, is also limited by 

 a line through Hannibal, Mexico, Glasgow and Bates county. 



The dogwood (cormis iforida) abounds south and east of a line 

 passing through Bowling Green, Danville, Columbia, Arrow Rock and 

 southwest through Cedar and Newton. 



Spice wood {Benzoni odoriferum) occurs on bottoms of large rivers 

 within the same limit as the last. 



Hornhean (Car frhius Americana) is common in southeast Mis- 

 souri and in the counties along the Mississippi and on the Missouri as far 

 as Howard, thence it passes to the southwest. 



In north Missouri white walnut is found as far west as Glasgow. 

 South of the Missouri w^e find it on Tabbo creek, thence southwest- 

 wardly. 



Alder {ahius serrulata) is accasionally found south of a line pass- 

 ing through Bowling Green and Danville, and southwardly through 

 Cedar county. It is not found at all in northwest Missouri. 



Leatherwood {Dirca palustus) is found on the creek near Fulton, 

 on Lost creek in Warren and Leatherwood creek in Iron county and 

 on Castor river. 



