



INDEX. 



The principal reference to each species, that is, to the page on which it is mentioned in the catalogue 

 of species, stands first, the other references, if there are any, following in numerical order. The 

 names of species and varieties which have heen described as new, either in.the present publication or 

 4 n previous ones, from the collections of the Death Valley Expedition, are printed in heavy -fared 

 type. 



Abies concolor 224,193,240,200,209,275 



douglasii macrocarpa 223 



magniflca 224,23,193,275 



pattoniana 223 



Abronia * * ' 



fragrans 178 < 276 



nana ™-273 



pogonantha i78 ' - G1 



turbinate 178,252,254 



villosa 178,45,239,243 



Acacia greggii. 



90 

 Acamptopappus sphserocephalus.122, 21, 22, 47, 253 



Acanthogonum rigidum 189 



Acer cali fornicum 8 ^ 



glabrum 81, 273 > 279 



maciophyllum 81, 259 



negundo - 8 ^ - D ^ 



Acerates cordifolia 149 



Achillea millefolium. I 37 



Achyrouyehia cooperi 179, 44, 239, 244 



Acknowledgments 2 



Actaca arguta 57 



Adaptations of the desert flora 33, 42 



Adelia parvifolia 148, 252, 255 



Adenostegia rigida brevibraeteata 173, 269 



Adenostoma fascicular m . - -92, 25, 122, 167, 235, 262 



Adiantum emargiuatum 228, 247, 283 



pedatum 228,263 



jEcidium gayophy ti 232, 281 



JEsculus californica 80, 25, 257 



Agave 231 



utahensis 201, 242 



Ageratnm lineare 136 



Agoseris grandi Mora 144, 263 



retiorsa 144,264 



Agrostis airoides 216 



tenuis 217, 271 



verticillata 217,246 



Air, influence of 13 



Aira ca;spitosa 217 



spicata-- 217 



Aitonia erythrosperma 230, 267 



Ahhea circiuata 159 



Alder 195 



Alfalfa 82 



Algae 232 



Allen, T.F 231 



Pago. 



Allenrolfea occidentalis 183,23,261,277 



Alisma plantago 210, 202 



Alismaceae 210 



Allium ancepB 203, 278 



hisceptrum 294,274 



croceum 203 



tribracteatum ' 204, 268 



validuin 204, 231, 205 



Allocarya californica 163 



Allot ropavirjjata 147, 267 



Alnus rhombifolia 195 



Alopecurus 271 



monspeliensis 217 



Alpine white-bark pine 221 



Alsine baicalensis 70,208,274 



longtpea 70,271 ■ 



media 70,262 



Alsinella 256, 262 



Altitude, effect of 15 



Amarantaceaj 179 



Amarantus albus 179 



Amaryllidacete 201 



Ambrosia acanthicarpa 129 



Am'elanohier alnifolia 97, 255, 261 , 266 



pallida 97,259 



Anamania coccinea 102, 202 



humilis - 102 



ramosior 102, 261 



Am pclidacera 80 



Amphiachyris fremontii 120, 21, 47, 52, 239, 257 



Amphipappus fremontii 120 



Amsinckia spectabilis 166, 234 



tcsseilata 106, 242, 244, 245 



Amsonia 242,270 



hrevifolia 148, 252 



Anacardiacese 81 



Andropogon macrourus 215, 238 



Anemia californica 192 



Anemone occidentalis 56 



aphenophylla 56, 244 



Anemopsis californica 192.248 



Angelica lineariloba 116, 266 



Anisocoma acaulis 143, 250 



Annuals as zonal plants 18 



in the desert 44 



Antennaria alpina 128 



dioica 128,270,283 



301 



