LIST OF ILLUSTRATIONS 



Coloured Plates 



Salt-marsh Cockspur Grass (Echinochloa IValteri) . Frontispiece 



PAGE 



Foxtail Grasses (Setaria) 8i 



Indian Rice, or Wild Rice {Zi^ania aquatica and Z. palustris) 87 



Red-top {Agrostis alba) 117 



Sr\3ike Grass {Eragrostis megastachya) 175 



Orcha.rd Grass (Dadylis glomerata) 189 



Fringed Brome-grass {Bromus ciliatus) 223 



Brome-grass {B. altissimus) 225 



Brome-grass (6. incanus) 227 



Slender Wild Rye (Elymus striatus) 243 



Wool Grass (Scirpus cyperinus) 255 



Great Bulrush (S. validus) 257 



Yellow Nut-grass (Cyperus esculentus) 261 



Bristle-spiked Cyperus (C. strigosus) 263 



Chair-maker's Rush {Scirpus americanus) 281 



Fox Sedge {Carex vulpinoidea) 305 



Stem, leaf, and flower 18 



Spikes 19 



Panicles 20 



Grass flowers and their parts 21 



Gama Grass (Tripsacum dactyloides) 50 



Beard-grass {Andropogon scoparius) 50 



Broom Sedge on sandy soil {A. virginicus) 51 



Forked Beard-grass {A. Jurcatus) 53 



Indian Grass {Sorghastrum nutans) 56 



Large Crab-grass (Digitaria sanguinalis) 57 



Large Crab-grass {D. sanguinalis) 59 



Slender Paspalum {Paspalum seiaceum) 60 



Old Witch-grass {Panicum capillare) 62 



xi 



