304 
INDEX. 
Page. 
Secale cereale 91-92 
creticiim 91 
montanum 91 
orientale 91 
villosum 91 
Sedge distinguished from grasses. 3-4 
Seneca grass 199 
Sericrostis 145 
Serrafalcus 24 
Sesleria dactyloides 198, 199 
Setaria 241,243-245 
glauca 243 
italica 243-245 
varietal key 244-245 
viridis 241 
Shallu 267 
Sheath 5 
Sheep 's fescue 31 
Short-grass 193 
country 199 
Siberian millet 245 
Side-oats grama 193,195 
Sieglingia 74 
albescens 74 
decumbens 74, 118 
Sitanion 94,96 
elymoides 96 
hystrix 96,97 
jubatum 96 
planifohum 96 
Six-weeks grama 194 
Sleepy grass 161 
Slough-grass 181-182 
Smut-grass 149,150 
Soil binders 4,5 
Soiling grasses 4 
Sorghastrum 20, 269-270 
avenaceum 269 
elliottii.. 270 
nutans 269,270,271 
secundum 270 
Sorghum 266-269 
tribe 252-280 
vulgare 266,267 
Sorgo 267 
S or gum 266 
Sour-grass 215,216 
Spartina 182-185 
alterninora 183 
glabra 183 
pilosa 183 
bakeri 183,185 
cynosuroides 183 
Page. 
Spartina foliosa 183 
gracilis 183 
juncea 183 
maritima . 183 
michauxiana 183, 184 
patens 183,185 
juncea 185 
schreberi 183 
spartinae 183 
stricta 183 
tenacissima 5 
Spear-grasses 158-161 
Sphenopholis 12, 109, 110 
obtusata 110-111 
lobata 110 
pallens 110 
palustris 109 
Spikelet 5 
Spirochloe 180 
Spirotheros 273 
Sporobolus 149-151 
airoides 4, 150, 152 
berteroanus 149, 150 
black 151 
cryptandrus 150, 151 
elongatus 150 
gracilis 150 
indicus 150 
interruptus 151 
pulchellus 150 
vaginaeflorus 150 
virginicus 150 
wrightii 150 
Sprangle-top 172 
red 173 
Squirreltail grass 96 
Stapfia , 71 
colusana 71 
Stegosia 278 
cochincliinensis 278 
Steinchisma 229 
Stelephuras 140 
Stenotaphrum -. 218-219 
americanum 219 
glabrum 218 
secundatum 219,220 
Stink-grass 48 
Stipa 158-161 
avenacea 159,160,161 
barbata 160 
calamagrostis 127 
capillaris 145 
comata 161 
