LIST OF ILLUSTRATIONS 



Coloured Plates 



Salt-marsh Cockspur Grass {Echinochloa Walteri) . Frontispiece 



PAGE 



Foxtail Grasses (Setaria) 8i 



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



Red-top {Agrostis alba) 117 



SmkeGr2i's,s{Eragrostismegasiachya) 175 



Oxc\\2irdGr2iSS {Daciylis glomerata) 189 



Fringed Brome-grass {Bromus ciliatus) 223 



Brome-grass (B. altissimus) 225 



Brome-grass (B. incaniis) 227 



Slender Wild Rye (Elymus striaius) 243 



Wool Grass (Scirpus cyperinus) 255 



Great Bulrush {S. validus) 257 



Yellow Nut-grass (Cyperus esculenius) 261 



Bristle-spiked Cyperus (C. strigosus) 263 



Chair-maker's Rush {Scirpus americanus) 281 



Fox Sedge {Carex vulpiywidea) 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. virginictis) 51 



Forked Beard-grass {A. furcatus) 53 



Indian Grass {Sorghastrum nutans) 56 



Large Crab-grass (Digitaria saiiguinalis) 57 



Large Crab-grass {D. sanguinalis) 59 



Slender Paspalum (Paspalum setaceum) 60 



Old Witch-grass {Panicuni capillare) 62 



xi 



