Index 



Eock Cress (Arahis), 204. 



Rock Fringe (Epilobium 1.), 270. 



Romanzoffia, 316. 



Rosaceae, 228. 



Rose family, 228. 



Rosewort {Sedum 1.), 212. 



Rowan {Pyrus), 233. 



Eubacer, 228. 



Rubiaeeae, 344. 



Rubus, 228. 



Rumex, 158, (166), 167. 



Rush (Juncus), 129. 



Rush family, 127. 



Sagebrush {Artemisia 1.), 395. 



Sagina, 172, 175. 



St. John's-wort (Hypericum), 266. 



St. John's-wort family, 266. 



Salieaceae, 148. 



Salix, 148. 



Sambucus, 346. 



Sandwort (Are)iaria), 175. 



Sanieula, 275, 276. 



Sarcodes, 282, 291. 



Sarraceniaceae, 212. 



Saxifraga, 214, (217), 218. 



Saxifragaceae, 214. 



Saxifrage (Saxifraga), 218. 



Saxifrage family, 214. 



Scarlet Gilia (Gilia 3.), 303. 



Scirpus, 107, (107), 108. 



Scorzonella, 403. 



Scouring Rush (Equisetum 2.), 79. 



Scrophulariaceae, 322. 



Sedge (Carex), 110. 



Sedge family, 107. 



Sedum, 212. 



Selaginella, 80. 



Selaginellaceae, 80. 



Selinum, 275, 278. 



Seneeio, 353, 388. 



Senecioneae, 352, 353. 



Sericotheca, 231. 



Service Berry (Amelanchier) , 230. 



Shin Leaf (Pyrola), 285. 



Shooting Star (Bodecatheon) , 293. 



Shrubby Cinquefoil (P&tentilla 1.), 



234. 

 Sidalcea, 264. 



Sierra Primrose (Primula 1.), 292. 

 Sieversia, 240. 

 Sile7ie, 172. 



Silver Pine (Piiius 1.), 81. 

 Silver Willow (Salix 3.), 150. 

 Sisyimbriuni, 203. 

 Sisyrinchium, 145. 

 Sitanion, 90, 99. 

 Sitka Willow (Salix 9.), 152. 

 Smilacina, 134, 141. 

 Snake-root (Sanieula), 276. 

 Snapdragon (Antirrhinum), 330. 

 Sneezeweed (Selenium), 376. 

 Snowberry (Symphoricarpos) , 347. 

 Snow-bush (Ceanothus 2.), 263. 



Snow Plant (Sarcodes), 291. 



Snow Willow (Salix 2.), 149. 



Solidago, 352, 358. 



Sorhus, 233. 



Sparganiaceae, 88. 



Sparganium, 88. 



Spatidaria, 219. 



Spear-grass (Poa), 103. 



Speedwell (Veronica), 329. 



Sphaeromeria, 394. 



Sphenosciadium, 278. 



Spike Rush (Eleocharis) , 107. 



Spiraea, 228, (231), 232. 



Spiranthes, 145, 146, (147). 



Spleenwort (Asplenium), 75. 



Sporoboliis, 92. 



Spraguea, 180, 184. 



Spring Beauty (Claytonia), 183. 



Star Tulip (Calochortus 1.), 138. 



Steer's Head Flower (Dicentra 2.), 



196. 

 Steiraiiisia, 220. 

 Stellaria, 172, 178. 

 Stellariopsis, 228, 246. 

 Stenotus, 361. 

 Stipa, 90, 91, (92). 

 Stonecrop (Sedum), 212. 

 Strawberry (Fragaria), 247. 

 Streptanthus, 197, (206), 209. 

 Subularia, 197, 211. 

 Suksdorfia, 214, 217. 

 Sulphur Flower (Eriogonum 8.), 163. 

 Sundew (Drosera), 211. 

 Sundew family, 211. 

 Sunflower family, 352, 

 Sweertia, 295, 299. 

 Sweet Cicely (Osmorrliiza) , 275. 

 Sword-fern (Polystichum I.), 75. 

 S}'mphoricarpos, 346, 347. 

 Talinum, 181. 



Tamarack Pine (Pinus 6.), 84. 

 Tanacetum, 353, 394. 

 Tansy (Tanacetum), 394. 

 Tarweed (Madia), 375. 

 Tellima, 214, 218. 

 Thalictrum, 186. 

 Thimble Berry (Euhus 1.), 228. 

 Thistle (Cirsium), 402. 

 Thlaspi, 197, 201. 

 Thoroughwort (Eupatorium), 354, 

 Tofieldia, 134, 140. 

 Tonestus, 362. 

 Tovaria, 141. 

 Trautvetteria, 186. 

 Trichophyllum, 378. 

 Trifolium, 248. 

 Triglochin, 89. 

 Trisetum, 91, 101. 

 Troximon. 404, 405. 

 Tsuga, 81, 85. 

 Txirritis, 206. 



Tway blade (Listera), 145, 

 Twinberry (Lonicera 1.), 349, 



[422] 



