453] 



INDEX 



305 



References to the Flora are in brackets 



alpestre 35, 



angustifolium 14, 35, 



Sitanion 



brevifolium 15, 



longifolium 15, 



Skullcap 



Britton's 



hooded 



wand-like 



Skunk-bush 



Skunk-grass 



Small mistletoe 



American 



hidden footed 



Smartweed 



water 



SMILACEAE 



Smilacina amplexicaulis 



racemosa 



stellata 



Smilax lasioneuron 



Snakeroot, black 



button 



Sneezeweed 



mountain 



Snowberry 



western 



Snowflower 40, 



James's 



Snow-on-the-mountain 



Boulder 



Soap wort 



SOLANACEAE 



Solanum 



interius 



Lycopersicum 



nigrum villosum 



rostratum 



triflorum 



Solidago 



Canadensis 12, 



gilyocanescens 



concinna 



decumbens 32, 42, 



minuescens 



dilatata 



gilvocanescens 17, 



glaberrima 16, 



humilis nana 



Patter sonii 



Missouriensis extraria 



mollis 



nana 16, 



95 



95 



78 



78 



78 



205 



205 



205 



205 



20 



[68 



103 



103 



103 



107 



107 



94 



93 



93 



93 



94 



181 



226 



245 



245 



221 



221 



213 



213 



165 



165 



118 



208 



209 



210 



210 



210 



209 



209 



230 



231 



231 



231 



230 



230 



230 



231 



231 



230 



230 



23f 



232 : 



232; 



nemoralis incana [232] 



oreophila 26, 32, [230] 



pallida 19, [231] 



Pitched 12,29, [231] 



polyphylla ............. 29, 



pulcherrima ............... 



radulina ............... 26, 



rigida humilis ............. 



speciosa pallida. ........... 



trinervata ... .......... 26, 



viscidula ............... 26, 



Solomon's seal, false ...... 21, 



Sonchus .................... 



arvensis ...... . ........ 45, 



asper .................. 45, 



Sophia ..................... 



andrenarum ............... 



incisa .................... 



intermedia ............. 14, 



leptophylla ............... 



Sophora .................... 



sericea ................ 17, 



Sophora, silky ............... 



Sorbus ..................... 



scopulina .............. 25, 



Sorghastrum ................ 



nutans ................ 18, 



Sorrel, mountain ............. 



sheep .................... 



wood ..................... 



yellow .................. 



Sow thistle .................. 



field ...................... 



harsh .................... 



narrow-leaved 



[94 

 Spanish needles, western ...... [244 



SPARGANIACEAE. 



Sparganium .' 



angustifolium 34, 



simplex angustifolium 



Spartina 



cynosuroides 11, 



Spatter dock, western [125 



Spearmint [208 



Special classes of plants 43 



Speculiaria [223 



leptocarpa [223 



perfoliata 26, 223 



Speedwell. 214 



Byzantine 215 



field 215 



thyme-leaved 214 



Wormskjold 214 



Xalapa 214 



SPERMATOPHYTA [53 



Spiderwort [87 



University [87 



Spiesia Lamberti [159 



Lamberti sericea [159 



Spike-grass, marsh [69 



