Scapania americana, - - - - 217, 
—Bolander1, = = - ~ = 220, 233 
—convexa, - = . - - - 230 
—denta, - - - - - - 229 
—yvansiie = = = 2 2 - 220, 233 
—nemorosa, - - - = - + S238 
—uliginosa, -’ = - = - > 229 
—mbrosa, - - = = = = 229 
—tndulata = - = - = ~ "3205230 
Scehist. = = w z = S - 328 
Scirpus americanus, - = - = 2 99 
cespitosus,  - - = - 2 = 99 
—microcarpus, - - = - - 23, 99 
Scrophulariacee, - = = = - 123, 130 
Scrophularia californica, - = - = Baer 
Selaginella rupestris, - = - - - 61, 92 
Selaginellacee, - - . - - : 92 
Shale, - - - = - 277, 203) 211 3th sko 
Sisyrinchium idahoense, - - - - - 30, 105 
Slate, § = - 2 - : : 2 =" B59 
Senchus asper, - - - - - =) 22eer, 
Sorbus occidentalis,  - - - - - =) ure 
Sparganiacee, - - = = = - 63, 94 
Sparganium androcladum, = - > - = = 04 
—minimum, - : = - =" 75804 
Spathularia clavata, - = - - = 238 
Spermatophyta, - - - - : - 89 
Spheronamemella helvelle, - - - = 242 
Sphenolobus Hellerianus, - - = - 224 
—ovyatus, - - - = - - 224 
Sphagnum bogs, - =; = - = = 50 
Spirzea menziesii, = - - = - Fie, Me) 
Spiranthes Romanzoffiana, - - - = 106 
Spruce, - = = - - = - 164, 195 
—Douglas, - - = - - eee el 
—Engelmann, - = - - = S70) 
—Patton, - - - - = - 172 
—Tideland, - = = - 167, Plate XIII. 
Stachys ciliatus, . - = - - ee Ae 
Statistics, - - - - = = = 89 
Stenanthium occidentale, - - - = - . 61, 104 
