596 
Spartina 
cynosuroides 1 223 
glabra 22 
gracilis 224 
juncea 223 
Michauxiana 222 
patens 223 
polystachya Baz 
Schreberi 222 
stricta 224 
“ maritima 224 
Spartium 
scoparium 350 
Spathyema I 444 
foetida 445 
Spatularia 2 220 
petiolaris 221 
Specularia 3 207 
biflora 298 
leptocarpa 298 
perfoliata 298 
Spergula 2 58 
arvensis 59 
decumbens 51 
nodosa 52 
saginoides 51 
sativa 59 
Spergularia 2 59 
media 59 
rubra 60 
salina 59 
Spermacoce 3 256 
diodina 256 
glabra 250 
tenuior 256 
SPERMATOPHYTA I 55 
Spermolepis 2 651 
divaricatus 651 
echinatus 652 
patens 651 
Sphaeralcea 2 521 
acerifolia 522 
cuspidata 522 
remota 522 
stellata 522 
Sphaerocarpus 2 158 
Sphenopholis I 243 
nitida 244 
obtusata 244 
pallens 244 
Spiesia 
see te a 388 
Spigelia 2 730 
Anthelmia 730 
marylandica 730 
Spilanthes 3 469 
americana 469 
repens 469 
urens 469 
Spiraea 2 244 
alba 245 
Aruncus 
“hermaphrodita 215 
betulifolia 247 
“ corymbosa 246 
callosa 246 
chamaedrifolia 246 
corymbosa 246 
japonica 246 
latifolia 245 
lobata 249 
opulifolia 244 
prunifolia 246 
rubra 249 
salicifolia 244, 5 
“ lanceolata 245 
“latifolia 245 
sorbifolia 247 
tomentosa 245 
stipulata 248 
trifoliata 248 
Ulmaria 249 
Spiraea 
virginiana 2 246 
see Ulmaria 249 
Spiranthes - I 563 
see Ibidium 564 
Beckit 566 
cernua 565 
decipiens 570 
gracilis 565 
gramineapraecox 566 
lucida 564 
neglecta 565 
odorata 565 
ovalis 565 
parviflora 565 
plantaginea 564 
Romansofiana 464 
simplex 566 
unalaskensis 555 
vernalis 565 
Spirodela I 446 
(Lemna in part) 
polyrhiza 446 
Sporobolus I 194 
(ine. Vilfa) 
airoides 199 
angustus 197 
argutus 198 
asper 196 
asperifolius 200 
attenuatus 196 
brevifolius 188 
canovirens 195 
clandestinus 195 
compressus 200 
confusus 197 
cryptandrus 199 
cuspidatus 188 
Drummondii 196 
ejuncidus 198 
gracilis 198 
heterolepis 199 
indicus 197 
junceus 198 
longifolius 196 
minor 194 
neglectus 195 
pilosus 196 
Richardsonis 188 
serotinus 198 
simplex 187 
texanus 200 
Torreyanus 200 
uniflorus 198 
vaginaeflorus 194 
virginicus 197 
STACHYEAE 3 99 
Stachys 3 123 
ambigua 124 
annua 127 
arenicola 125 
arvensis 127 
aspera 126 
atlantica 124 
Betonica 128 
cincinnatensis 126 
cordata $27 
germanica 123,8 
glabra 126 
hyssopifolia 124 
hispida 126 
latidens 125 
Nuttallii 126 
palustris 125 
“ aspera 126 
“ cordata 127 
salvioides 127 
tenuifolia 126 
Stanleya 2 169 
pinnata 169 
pinnatifida 169 
STAPHYLEACEAE 2 493 
GENERAL INDEX OF LATIN GENERA AND SPECIES. 
Staphylea 2 493 
Bolanderi 493 
pinnata 493 
trifolia 493 
Statice 2 718 
Armeria 918 
caroliniana 718 
Limonium 718 
Steinchisma I 163 
hians 163 
Steironema 2 712 
ciliatum 713 
intermedium 713 
lanceolatum 714 
longifolium 714 
quadriflorum 714 
radicans 713 
tonsa 713 
Stellaria | 2 41 
see Alsine 2 41 
biflora 55 
cerastioides 50 
Friesiana 45 
groenlandica 57 
Stenactis 
Beyrichit 3 440 
Stenandrium 
tuberosum 3 208 
Stenanthium I 490 
angustifolium 490 
gramineum 490 
robustum 490 
Stenophragma 2 176 
Thaliana 176 
Stenophyllus I 319 
(Fimbristylis in part) 
capillaris 319 
Stenosiphon 2 610 
linifolium 610 
virgatus ss 
Stenotus 33 
(Aplopappus in He 
acaulis 379 
armerioides 379 
Stephanomeria 
minor 312 
runcinata 312 
Stevia 
callosa 3 507 
sphacelata 507 
Stewartia 2 526 
Malachodendron 
2 526 
pentagyna 527 
virginica 526 
Stillingia 2 461 
salicifolia . 461 
sylvatica 461 
Stipa I 176 
avenacea 177 
barbata 177 
bicolor 177 
canadensis 176 
capillaris 189 
comata 177 
juncea 176 
Macounii 176 
membranacea 173 
pennata 176 
Richardsonii 176 
spartea 176-7 
virginica 177 
viridula 176 
Stoepelina 3 366 
elegans 366 
Stomoisia 3 231 
comata 232 
juncea 232 
virgatula 232 
Streptopus I 520 
amplexifolius 520 
Vot. III. 
Streptopus 
lanuginosus I 517 
longipes 520 
oreopolus 520 
roseus 520 
Strophostyles 2 423 
(Phaseolus in part) 
angulosa 423 
helvola 423 
missouriensis 423 
pauciflora 424 
peduncularis 424 
umbellata 424 
Struthiopteris 
germanica Ir 
Stuartia 
see Stewartia 2 526 
Sturmia I 571 
faludosa 571 
Stylipus 2 271 
vernus 271 
Stylisma 3 40 
aquatica 41 
humistrata 41 
Pickeringii 41 
Stylophorum 2 140 
diphyllum 140 
Stylosanthes 2 393 
biflora 393 
“hispidissima 393 
elatior 393 
procumbens 393 
racemosa 365 
riparia 394 
STYRACACEAE 2 721 
Styrax 2 722 
americana 723 
grandifolia 723 
officinalis 722 
pulverulenta 723 
Suaeda 2 23 
americana 23 
depressa 24 
maritima 24 
Richii 24 
Subularia 2 159 
aquatica 159 
Succisa 3 290 
australis 290 
Succisa 290 
Sullivantia 2 223 
Hapemanii 224 
ohionis 224 
Sullivantii 224 
Svida 2 661 
see Cornus 661 
interior 662 
Priceae 661 
Swertia 
difformis 36 
deflexa 15 
rotata 14 
SYMPETALAE 2 666 
Symphoricarpos 3 276 
occidentalis a77 
orbiculatus 277 
pauciflorus 276 
racemosus 276 
Symphoricarpos 277 
vulgaris 277 
Symphytum 392 
asperimum 92 
officinale 92 
tuberosum 92 
Symplocarpus I 444 
foetidus 445 
SYMPLOCACEAE 2 721 
Symplocos 721 
martinicensis 721 
tinctoria 721 
Synandra 118 
grandiflora 118 
