272 



INDEX 



[420 



References to the Flora are In brackets \ 1 



Arenaria [116 



Fendleri 41,(116 



diffusa (116 



obtusa [116 



propinqua [116 



Tweedyi 41,(116 



verna aeqaicaulis [116 



Argemone [126 



bipinnatifida [126 



hispida 14, [126 



intermedia 14, 18, [126 



Arid brush slope society.. .. 31, 34 



ARIDAE 13, 15 



Aristida [60 



fasciculata 15, [60 



longiseta 15, [60 



Armoracia [130 



Armoracia 46, [130 



Arnica [248 



Chamissonis longinodosa. . . .[248 



cordifolia 26,(248 



eradiata [249 



monocephala [249 



Parryi 37,42,(249 



parvifolia [248 



pedunculata 20, [248 



platyphylla 42, [248 



pumila [248 



Rydbergii (248 



subplumosa 35, [248 



Arnica [248 



broad-leaved [248 



dwarf [248 



heart-leaved [248 



Parry's [249 



peduncled [248 



Rydberg's [248 



single-headed [249 



subplumose [248 



Arrowwood [221 



Artemisia [246 



biennis 34, [247 



Brittonii .16,19,(247 



Chamissoniana saxatilis [247 



desertorum Scoideriana [246 



diversifolia [247 



dracunculoides 16, 19, (246 



Forwoodii 19, [246 



frigida 19,43,(247 



gnaphalodes 15, [247 



saxicola [247 



silvicola 32, [247 



scopulorum [247 



Scouleriana [246 



spithamaea 42, [247 



tridentata 34, [248 



Arum family [87 



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 [49] 



Asplenium [51] 



Andrewsii 30, [51] 



septentrionalis [51] 



Trichomanes 30, [51] 



Aster [233] 



adscendens [235] 



Andrewsii 32, [235] 



Bigelovii [235] 



ciliatus [233] 



coerulescens 12, [234] 



commutatus 15, [234] 



crassulus 16, [234] 



Eatonii [235] 



Engelmannii [233] 



exiguus 16, [233] 



foliaceus Eatonii [235] 



glaucus [233] 



iiicanopilosus [234] 



laetevirens [234] 



laevis 26, [234] 



Nelsonii [233] 



Osterhoutii 12, [234] 



Pattersonii [235] 



polvcephalus 16, 26, [234] 



Porteri 26,32,(234] 



salicifolius coerulescens [234] 



Under woodii 32, [233] 



violaceus [233] 



Aster 31 



Andrews's [235] 



ascending [235] 



Bigelow's [235] 



coerulean [234] 



filiate [233] 



Eaton's [235] 



Engelmann's [233] 



golden [227] 



glaucous [233] 



harsh [235] 



light-green-leaved [234] 



