OF DENISON UNIVERSITY. 79 



678. Q. palustris Du Roi. Swamp or Pin Oak. 

 Banks of New Reservoir. 



325. Castanea Tourn. 



679. C. sativa Mill. Var. Americana Watson. Chestnut. 

 Rocky woods, common. 



326. Fagus Tourn. 



680. F. ferruginea Ait. American Beech. 



Woods; our most common tree. May 2, 1888; May 6, 1890; 

 April 25, 1891. 



LXXXIII. SALICACEAE. 



327. Salix Tourn. 



681. S. nigra Marsh. Black Willow. 



Creek banks, common. May 19, 1890; May 13, 1891. 



682. S. fragilis\^. Crack Willow. 



Along streams, somewhat rare, south of Granville. May 2, 1891. 



683. S. alba L. Var. vitellina Koch. 



Along streams, common. April 30, 1890; May 9, 1891. 



684. S. longifolia Muhl. 



Along streams, somewhat rare; southeast of Newark. May 9, 

 1891. 



685. S. discolor Muhl. Glaucous Willow. 



Creek banks and edges of swamps, common. April 4, 1889; 

 April 11, 1890; April 17, 1891. 



686. S. humilis Marsh. Prairie Willow. 



Rocky banks and hillsides, rare; Pine Hill, Vanattasburg. April 

 25, 1891. 



687. S. purpurea L. Purple Willow. 



Creek banks, Granville. April 7, 1888. Herbarium of C. J. 

 Herrick. 



688. S. cordata Muhl. Heart-leaved Willow. 



River and creek banks, rather common; Worthington Bridge 

 near Granville, Licking River near Toboso. 



328. Populus Tourn. 



689: P. alba L. White Poplar. 



Common. April 2, 1888; April 15, 1889; April 17, 1891. 



