INDEX. 



165 



PAGE. 



Sparganium 145 



Spartina 136 



Specularia 42 



Spergula 76 



Spergularia 77 



Sphacele 50 



Sphoeralcea 82 



Spiraea 109 



Spiranthes 125 



Stachys 52 



Statice 64 



Stellaria 76 



Stephanomeria 40 



Stipa 136 



Streptanthus 96 



Stylocline 26 



Suaeda 79 



Sympkoricarpus 45 



Tanacetum 36 



Taraxacum 41 



Tellima 73 



Thalictrtim 102 



Thermopsis 113 



Thysanocarpus 94 



Thuya 151 



Tiarella 73 



Tillsea 74 



Torreya 149 



Tricerastes 92 



Trichostemana 52 



Trientalis 64 



Trifolium 114 



PAGE. 



Triglochin 147 



Trillium 128 



Trisetum 137 



Triteleia 130 



Triticum 142 



Tropidocarpum 95 



Troximon 41 



Tsuga 150 



Typha 146 



Umbellularia 100 



Urtica 121 



Vaccinium 66 



Vancouveria 100 



Verbena 53 



Veronica 55 



Vicia 115 



Vitis 89 



Viola 93 



Whipplea 74 



Woodwardia 155 



Wyethia 29 



Xanthium 29 



Xerophyllum 132 



Zannichellia 147 



Zauschneria 105 



Zostera 148 



Zygadenus 131 



