ILLUSTRATIONS 



FIG, 



39- 



40. 

 41. 



42. 



43- 



44- 

 45- 



46. 

 47- 

 48. 

 49. 

 50. 

 51- 

 52. 

 53- 

 54- 



186 

 188. 



I go 



Distribution of Crab-grass. Each dot representing a 



correspondent reporting this grass important 

 Distribution of Carpet-grass ..... 



Plat of Bluestem {Ai^ropyron occidental) in Grass- 

 garden at Washington, D. C. (United States De- 

 partment of Agriculture) . . . . 



Seaside Blue-grass (Poa jiiacrantha), near Astoria, 

 Oregon. Protecting sand-dune from erosion by 

 the wind ......... 195 



Typical View on Ranges of the West. Showing Ely- 



mus condensatus in low alkaline soil 

 Greensward in Public Gordens, Boston, Mass. 

 Lawn-mowers, or Turf-makers, in Druid Hill Park, 

 Baltimore, Md. ..... . 213 



Varieties of Timothy . .... 230 



Varieties of Timothy 231 



Improved Varieties of Brome-grass . . . 233 



Penicillaria, or Pearl Millet . . . 235 



A Spike . . . . . 237 



A Spikelet . . 237 



A Panicle . . . 239 



Parts of a Single Floret . 241 



Showing Action of Pollen . . . 241 



199 



212 



