28 BULLETIN OF THE LABORATORIES 



79. Negundo Moench. 



151. N. aceroides Moench. Ash-leaved Maple. Box Elder. 

 Creek banks, common. April 19, 1889; April 10, 1890; April 



18, 1891. 



80. Staphylea L. 



152. S. trifolia L. American Bladder-nut. 



Creek banks, rare; Granville, Toboso, etc. May 23, 1888. 



XXV. ANACARDIACEAE. 



81. Rhus L. 



153. R. glabra L. Smooth Sumach. 



Rocky hillsides, common. July 5, 1890; July 14, 1891. 



154. R. copallina L. Dwarf Sumach. 



Dry, rocky hillsides, rare; Red Rock, Toboso. July 1, 1891. 



155. R. venenata D C. Poison Sumach. Dogwood. 

 Swamps, rare; Everett's Swamp; Cranberry Marsh, Old Reser- 

 voir. June 20, 1890. 



156. R. toxicodendron L. Poison Ivy. Poison Oak. 

 Common everywhere. June 23, 1888; June 19, 1891. 



XXVI. POLYGALACEAE. 



82. Polygala Tourn. 



157. P. verticillata L. 



Woodson dry hillsides, rare; Toboso. August 18, 1890; July 20, 

 1891. 



XXVII. LEGUMINOSAE. 



83. Trifolium Tourn. 



158. T. prate use L. Red Clover. 



Common everywhere. June 1, 1884; July 2, 1889; May 17, 

 1890. 



159. T. stoloniferum Muhl. Running Buffalo Clover. 



This plant has been reported, frequently, by good authorities, as 

 occurring in Licking county. It has not been found of late years. 



