512 



INDEX. 



Senecio fastigiatus, 367 

 hydrophilus, 367 

 " lugens, 361 

 Sericocarpus rigidus, 344 

 Setaria glauca, 481 

 Shepherdia Canadensis, 449 

 Sicyos angulatus, 302 

 " Oreganus, 302 

 Sida delphinifolia, 253 

 " hederacea, 256 

 " malvsejiora, 253 

 " Oregona, 253 

 Sidalcea malvseflora, 253 

 " Neo-Mexicana, 253 

 Oregana, 253 

 Sieversia, 287 

 Silene Antirrhina, 241 

 Californica, 242 

 " Douglasii, 241 

 " laciniata, 242 

 " Menziesii, 242 

 " pulchra, 242 



regia, 242 

 " rotundifolia, 242 



Scouleri, 241 



" stellarioides, 242 



Sisymbrium deflexum, 231 



" Hartivegianum, 230 



" incisum, 230 



Sophia, 230 

 Thaliana, 230 

 Sitanion elymoides, 495 

 Sium angusti folium, 317 

 " incisum, 317 

 " lineare, 316 

 ■ " pusillum, 317 

 Solanacea3, 428 

 Solanum Californicum, 428 

 " genistoides, 428 

 " Menziesii, 428 

 " nigrum, 428 

 " umbelliferum, 428 

 Solidago Californica, 345 

 " Canadensis, 345 

 " confertiflora, 344 

 " elongata, 345 



Solidago gigantea 345 

 " occidentalis, 345 

 " spiciforniis, 345 

 Sonchus asper, 374 

 Spartina foliosa, 487 

 " gracilis, 487 

 " stricta, var., 487 

 Specularia perfoliata, 376 

 Spergularia rubra, 247 

 Sphseralcea acerifolia, 255 

 " longisepala, 255 



" rivularis, 255 



Sphserostigma, 298 

 Spiraea arisefolia, 286 

 " Aruncus, 286 

 " betulifolia, 286 

 Douglasii, 286 

 " Menziesii, 286 

 " opulifolia, 285 

 " salicifolia, 286 

 " tomentosa, 286 

 Sporobolus ciyptandrus, 484 



" ramulosus, 484 



Stachys agraria, 409 

 " ajugoides, 408 

 " Chamissonis, 408 



palustris, 408 

 " pycnostachya, 408 

 " sylvatica, 408 

 Statice Armeria, 388 



Californica, 388 

 " Limonium, 388 

 Stellaria borealis, 245 

 " crispa, 245 

 " Jamesii, 245 

 " longipes, 245 



longifolia, 245 

 " nitens, 245 

 Stenotus, 347 

 Stephanomeria elata, 371 



" heterophylla, 371 



" minor, 371 



« paniculata, 371 



" runcinata, 371 



" virgata, 371 



Stipa capillata 483 



