304 



[452 



References to the Flora are in brackets r 1 



Steven's 



stiff 



straw 



false 



short-beaked 



variable 



western 



winter-loving 



woolly [86 



Sedge family [79 



Sedum [136 



rhodanthum [136 



stenopetalum 22, 30, 42, [136 



rubrolineatum [136 



Seed plants [53 



Selaginella [52 



densa [52 



Engelmannii [52 



rupestris Fendleri [52 



Underwoodii 30, [52, 



Selaginella 29 



dense [52 



Underwood's [52 



Selaginella family [52 



Selaginellaceae [52 



Self-heal [206 



common [206 



Senecio 19,26,30, [249 



admirabilis 34, [250 



ambrosioides 32, [252 



atratus 37,42, [251 



aurellus [252 



aureus Balsamiiae [252 



borealis [252 



croceus Hallii [252 



Balsamitae [252 



Bigelovii Hallii [249 



blitoides 40, [249 



carthamoides 40, [249 



chloranthus 35, [249 



Columbianus [250 



crassulus 42, [250 



crocatus 42, [252' 



cymbalarioides 34, [252 



dimorphophyllus [252 



Fendleri 19, 26, [251 



lanatus [252 



fililf alius Fremontii [253 



flavovirens [252 



flaviilus [252 



Harbourii [251 



heterodoxus [252 



Hookeri [250 



hydrophilus 29, [250 



lanatifolius 32, [252 



lapathifolium [250 



longipetiolatus 30, [252 



foliosus [25 1 1 



Parryi [250] 



multicapitatus 16, [253] 



mutabilis [252] 



Nelsonii 19,26,30, [251] 



perplexus 29, [250] 



Plattensis 19, [251] 



pseudaureus 35,40, [252] 



pudicus 32, [249] 



Purshianus [251] 



rapifolius [250] 



Riddellii 16, [253] 



rosulatus [251] 



salicinus [251] 



scopulinus 35, [249] 



spartioides 16, [253] 



triangularis 34, 37, [249] 



Setaria glauca [59] 



Italica [59] 



viridis [59] 



Shadbush [150] 



alder-leaved [ISO] 



mountain [ISO] 



Sheepberry [221] 



Sheep sorrel [105] 



Shepherdia Canadensis [175] 



Shepherd's purse [128] 



common [128] 



Shield-fern [49] 



Shinleaf [186] 



bog [186] 



one-sided [186] 



Shooting star 27, [189] 



few-flowered [189] 



many-flowered [189] 



shade-loving [189] 



wavy-leaved [189] 



Sibbaldia [144] 



procumbens 42, [144] 



Sibbaldia 40 



procumbent [144] 



Sidalcea [170] 



Candida 33, 35, 37, [170] 



Sideranthus [229] 



annuus 16, [229] 



spinulosus 16, [229] 



Silene [117] 



acaulis 41, [117] 



antirrhina 18,45, [117] 



depauperata [117] 



noctiflora 45, [117] 



SlLVERBERRY FAMILY [175] 



Single delight [185] 



Sisymbrium [130] 



incisum [130] 



officinale 45, [130] 



Sisyrinchium [95] 



