FLORA OF THE MIAMI VALLEY. 39 



AMARANTACE^— The Amaranth Family. 



AMARANTUS, Tourn. 

 A. retroflexus, L. Green x\maranth. 

 A. albus, L. White Amaranth. 

 A. spinosus, L. Thorny Amaranth. 



POLYGONACEiE— The. Polygonum Family. 



POLYGONUM, L- 

 P. incarnatum, Ell. 

 P. Persicaria, L. Lady's Thumb. 

 P. Hydropiper, L. Smartweed. 

 P. Virginianum, L. 

 P. aviculare, L. Knotgrass, 

 var. erectum, Roth. Erect Knotgrass. 

 P. dumetorum, L. Climbing Buckwheat. 



FAGOPVRUM, Tourn. 

 F. esculentum, M(jench. Buckwheat. 



RUMKX, L. 

 R. crispus, L. Curled Dock. 

 R. obtusifolius, L. Bitter Dock. 

 R. Acetosella, L. Sheep Sorrel. 



LAURACE^— The Laurel Family. 



SASSAFRAS, Neks. 

 S. officinale, Nees. Sassafras. 



UNDER A, TuLNiiERcj. 

 L. Benzoin, Meisner. Spice-bush. 



