272 



INDEX 



[420 



References to the Flora are in brackets 



Arenaria 



Fendleri 41, 



diffusa 



obtusa 



propinqua 



Tweedyi.... 41, 



verna aequicaulis 



Argemone 



bipinnatifida 



hispida 14, 



intermedia 14, 18, 



Arid brush slope society.. . .31, 



ARIDAE 13, 



Aristida 



fasciculata 15, 



longiseta 15, 



Armoracia 



Armoracia 46, 



Arnica 



Chamissonis longinodosa. . . . 



cordifolia 26, 



eradiata 



monocephala 



Parryi 37,42, 



parvifolia 



pedujnculata 20, 



platyphylla 42, 



pumila 



Rydbergii 



subplumosa 35, 



Arnica 



broad-leaved 



dwarf 



heart-leaved 



Parry's 



peduncled 



Rydberg's 



single-headed 



subplumose 



Arrowwood . . 



116 

 116 

 116 

 116 

 116 

 116 

 116 

 126 

 126 

 126 

 126 

 34 

 15 

 60 

 60 

 60 

 130 

 130 

 248 

 248 

 248 

 249 

 249 

 249 

 248 

 248 

 248 

 248 

 248 

 248 

 248 

 248 

 248 

 248 

 249 

 248 

 248 

 249 

 248 

 22i; 

 Artemisia.. . . ... .[246 



247 

 247 : 

 247 ; 

 246 

 247 : 

 246 

 246 

 247 

 247 

 247 

 247 

 247 

 246 

 247 

 248 



[87; 



biennis 34 



Brittonii 16, 19 



Chamissoniana saxatilis 



desertorum Scouleriana 



diversifolia 



dracunculoides 16, 19, 



Forwoodii 19, 



frigida 19,43, 



gnaphalodes 15, 



saxicola 



silvicola 32, 



scopulorum 



Scouleriana 



spithamaea 42, 



tridentata 34, 



ARUM FAMILY . . 



ASCLEPIADACEAE 194 



ASCLEPIADALES 193 



Asclepias 194 



brachystephana 194 



incarnata 194 



pumila 16, 194 



speciosa 14, 194 



stenophylla 194 



verticillata pumila 194 



Asparagus 94 



officinalis 46, 94 



Asparagus, common 94 



Aspen.. 33,47, 98 



American 98 



quaking 32 



Aspen society 24 



Aspidium Filix-mas. 



Asplenium 



Andrewsii 30, 



septentrionalis 



Trichomanes 30, 



Aster 



adscendens 



Andrewsii 32, 



Bigelovii 



ciliatus 



coerulescens 12, 



commutatus 15, 



crassulus 16, 



Eatonii 



Engelmannii 



exiguus 16, 



foliaceus Eatonii 



glaucus 



incanopilosus 



laetevirens 



laevis 26, 



Nelsonii 



Osterhoutii 12, 



Pattersonii 



polycephalus 16, 26, 



Ported 26,32, 



salicifolius coerulescens.. 



49 

 51 

 51 

 51 

 51 

 233 

 235 

 235 

 235 

 233 

 234 

 234 

 234 

 235 

 233 

 233 

 235 

 233 

 234 

 234 

 234 

 233 

 234 

 235 

 234 

 234 

 234 

 233 

 233 



Aster 31 



235 

 235 

 235 

 234 

 233 

 235 

 233 

 227 

 233 

 235 

 234 



Underwoodii 32, 



violaceus 



Andrews's 



ascending 



Bigelow's 



coerulean 



ciliate 



Eaton's 



Engelmann's 



golden 



glaucous 



harsh 



light-green-leaved . . . 



