Bui. 25, Div. of Agrostology, U. S Dept. of Agriculture. 



Plate XX. 



Fig. 1.— Bulbous Panic-Grass, or Turnip Grass, 'Panicum bulbosumi. Grown on 

 Potomac Flats, Washington, D. C.. from New Mexican Seed. 



Fig. 2.— Curly Mesquite iHilaria cenchroides). Grown on Potomac Flats, 



Washington, D. C. 



