120 



INDEX 



Petiole, 16 

 Phalarideae, 97 

 Phalaris arundinacea, 65 



canariensis, 65 



minor, 65 

 Phleuin pratense, 48 

 Phragniites communis, 28 

 Pistils, 9, 10 



Pleuropogon californicus, 27 

 Poa, 26 



pratensis, 14, 26, 27 

 Poacese, 8 ' 

 Poatse, 95 

 Prophyllum, 17 



Quack-grass, 15, 34 



Raceme, 18 

 Rachilla, 11 

 Rachis, 18 

 Reed, 28 



canary-grass, 65 

 Reimarochloa, 72 

 Rhaphis, 85, 88 



pauciflora, 85, 86 

 Rhizomes, 13, 14 

 Rice, 65, 66 



tribe, 97 



wild, 66 

 Rootstocks, 13 

 Rye-grass, 38 

 Rytilix, 84, 85 



granularis, 84 



Saint Augustine-grass, 72 

 Salt-grass, 32 

 Sand-bur, 75, 76 



Scleropogon brevifolius, 32, 33 



Seneca-grass, 65 



Sheath, 8, 9 



Sitanion, 39 



Sod-forming grasses, 13 



Sorghastrum, 81 



Sorghum, 80, 82 



tribe, 99 

 Spartina, 59 

 Spathes, 82 

 Sphenopholis, 45 

 Spike, 18 



Spikelet, 11, 17, 19 

 Sporobolus airoides, 47 



heterolepis, 48 

 Stamens, 9, 10 

 Stenotaphrum, 72, 73 



secundatum, 72 

 Stigma, 9, 10 

 Stipa, 51, 52, 88 



spartea, 51 

 Stolons, 14 

 Styles, 9, 10 

 Sugar-cane, 81 

 Sweet vernal-grass, 64 

 Synonyms, 110 

 Syntherisma, 73 



sanguinalis, 70 



Timothy, 48 



tribe, 96 

 Torresia, 65 

 Tribes, primary characters of, 



95 

 Triodia flava, 27, 28 

 Tripsacese, 99 



