I NDKX . 



Paciticum ;>•")•") 



Senebiera 



Coronopus 229 



didyma 229 



Senecio 511 



aphanactis 512 



aronicoides 513 



Clevelandi 513 



Douglasii 513 



eurycephalus 512 



Greenei 512 



h3'drophilus 513 



mikanioides 514 



8ylvaticus 512 



vulgaris 512 



Senecio Ivy 514 



Senecionere 485, 509 



Sequoia 23 



gigantea 24 



sempervirens 23 



Sesuvium 189 



sessile 189 



Setaria glauca 33 



Shepherd's Needle 346 



Shepherd's Purse 223 



Sherardia 469 



arvensis 470 



Shin-leaf, White-veined . . 368 



Shooting Star 376, 377 



Sida 243 



hederacea 243 



Sidalcea 238 



calycosa 240 



delphinifolia 240 



diploscypha 239 



var. minor 239 



Hartwegi 239 



humilis 240 



malachroides 241 



malvaoflora 240 



Oregana 240 



secundiflora 239 



sulcata 240 



Side-heard 62 



California 63 



Silene 164 



antirrhina 165 



Californica 165 



conoidea 164 



Cucubalus 165 



dichotoma 166 



Gallica 165 



multinervia 164 



verecunda 165 



Silk-tassel Familv 362 



Silk-tassel Tree. " 362 



Silybum. 509 



Marianum 509 



Sisymbrium 215 



canescens 216 



officinale 215 



plnnatum 215 



Sisvrinchium. 129 



helium 129 



Californicum 130 



Sitanion elymoides 81 



Sium 363 



angustifolium 354 



cicutaefolium var. heterophyl- 



lum 353 



heterophyllum. 353 



Skull-cap ... 454 



Blue 454 



Skunkweed 428 



Slough-grass 57 



Smart weed, Dotted 161 



Smilacina 126 



amplexicaulis 127 



sessilifolia 126 



Snake Hoot 344 



Snake's Head 498 



Snapdragon 396 



Sneezeweed 525 



Bigelow's 526 



Sneezeweed Tribe . . . 486, 518 



Snow Berry 472 



Snow Brush 255 



Snow Plant 367 



Soap Plant 121. 177 



Solanaceae 390 



Solanoa 384 



purpurascens 384 



Solanum 392 



cupuliferum 393 



nigrum var. Douglasii . . 392 



tuberosum 393 



umbelliferum 393 



villosum 393 



