INDEX TO THE ADDITIONS AND CORRECTIONS 



Acrolasia, 1128 

 Adder's Tongue, 1141 

 Adopogon. 1141 

 Agoseris, 1141 

 Agropvron, 1112 

 Aira, 1111-2 

 Allium, 1114 

 Allocarya, 1130-1 

 Alopecurus, 1111 

 Alsinopsis, 1119 

 Ambylirion, 1114 

 Amorpha, 1124 

 Anelsonia, 1122 

 Anemopsis, 1115 

 Anisolotus, llZJf 

 Aqiiilegia, 1120 

 Arabis, 1122 

 Asparagus, 1114 

 Astragalus, 1126 

 Audibertiella, 1132 

 Axvris, 1119 

 Berberis, 1120 

 Bloodroot, 1121 

 Boisduvalia. 1128 

 Braxilia, 1129 

 Calochortus, 1114 

 Caltrop, 1126 

 Carex, 1113^ 

 Cartiera, 1123 

 Castilleja, 1137-8 

 Ceanothiis, 1126 

 Celtis, 1116 

 Cenchrus, 1111 

 Centaurea, 1141 

 Chaenactis, 1140 

 ChaetocMoa, 1111 

 Chamaesyce, 1126 

 Chaniomilla, 1140 

 Chenopoclium, 1119 

 Chrvsothaninus, 1139 

 Cleomella. 1123 

 Colutea, 1125 

 Comandra, 1138 

 Conium, 1129 

 Corvlus, 1115 

 Cosmos, 1139-40 

 Crowberry, 1127 

 Crowberry Family, 1127 

 Cynthia, 1140 

 Danthonia, 1112 



Daucus. 1129 

 Deschampsia, 1111 

 Diplotaxis, 1122 

 Dodecatheon, 1129 

 Draba, 1122 

 Elecampane, 1139 

 Elymus, 1113 

 EMPETRACEAE, 1127 

 Empetrum, 1127 

 Epilobium, 1128 

 Equisetum, 1141 

 Evening Star, 1127 

 Erxlcbenia, 1129 

 False Caltrop, 1126 

 False Four-o-clock, 1119 

 Fendlera, 1123 

 Gaillardia, 1140 

 Galega, 1125" 

 Grindelia, 1138 

 Heterothrix, 1123 

 Hibiscus, 1127 

 Homalobus, 1126 

 Idahoa. 1122 

 Inula, 1139 

 Koclua, 1119 

 Lappula, 1130 

 Lathryus, 1126 

 Lesquerella, 1121 

 Lizard 's-tail Family 1115 

 Lotus, llZJt 

 Liipinus, 1124 

 Malva, 1127 

 Matricaria, llJfO 

 Melandrium, 112o 

 JNIenzelia, 1128 

 Mertensia, 1131 

 Mesquite, 1124 

 Mimidus, 1137 

 Monotlirix, 1140 

 Naiocreue, 1119 

 Norta, 1121 

 Nuttallia, 1127-8 

 Ochrocodon, lllJf 

 Oenothera, 1128 

 Onopordon, 1141 

 Ophioglossum, 1141 

 Opmitia, 1128 

 Oreocarya, 1130 

 Ortliilia, 1129 

 Orthocarpus, 1138 



Oryzopsis, 1111 

 Ostrya, 1115 

 Panicularia, 1112 

 Panieuiu, 1111 

 Parosela, 1125 

 Pedicularis, 1138 

 Pediomelum, 1124 

 Pennellia, 1123 

 Pentstemon, 1132-7 

 Persicaria. 1116-9 

 Petradoria, 1139 

 Phoenicaulis, 1122 

 Phvsaria, 1121 

 Poa, 1112 



Poison Hemlock, 1129 

 Polygonum, 1116 

 Psoralidium, 1124 

 Pscrodendron, 1125 

 Pteryxla, 1129 

 Ramischia. 1129 

 Rose Mallow, 1127 

 Rumex, 1116 

 Salix, 1115 

 Saltbusii, 1140 

 Sanguinaria, 1121 

 SAURURACEAE, 1115 

 Screw Bean, 1124 

 Screw Pod, 1124 

 Sedum, 1123 

 Selaginella, 1141 

 Senecio, 1140 

 Sitanion, 1112-3 

 Solidago, 1139 

 Sophora, 1124 

 Sporobulus, 1111 

 Strombocarpa, 1124 

 Tetradymia, 1140 

 Thelypodiopsis, 1123 

 Tiquiliopsis, 1130 



TORMILLO, 1124 



Tradescantia, 1114 

 Valota, 1111 

 Vernonia, 1138 

 Veronica, 1137 

 Wild i our-o-clock, 1119 

 Whipplea, 1123 

 Woody Aster, 1139 

 Xylophacos, 1126 

 Yerba Mansa, 1115 



KEY 



TO THE 



ROCKY MOUNTAIN FLORA 



P. A. RYDERG, Ph.D. 



Curator, New York Botanical Garden 



Pu})lished by the author. 



Price $1.60 post paid. 



TMs is a separate repriat of the keys found in the first edition of this book, boiuid in 

 flexible covers, to make it a desirable and convenient pocket fleldbook. Including a 

 Glossary and the Index, it is a book of 306 pages, 5X8 inches, and M inch thick. 



