INDEX. 



Page 



Abronia sp 61 



Adenostegia ramosa '. 65 



Agroijyron 19, 23, 25, 28 



caninoides 47 



caninum 47 



dasy.slachyum subvillosum 47, 56 



diverijens '. 47 



'pseudurepens 47 



richardsoni 47 



ripariutn 48 



sjncatum 26, 48, 56 



molle 48,56 



teneruin 26, 48, 56 



ciliatina 48, 56 



vaseyi 48, 56 



violaceum 48 



Agrostis 29 



alba JO, 35 



asperifolia 35 



humilis 36 



scabra 35 



tenuis 36 



Alkali blue-grass 55 



grass 55 



meadow grass 45, 56 



Alliiaii mntabile 58 



reticulatum 58 



Alpine timothy 34 



Alopecurus genieulatus fulvus 34 



occidentalis 34 



American bulrush 57 



vetch 63 



Anogra albicaulis 64 



Arabis brebneriana 62 



canescens 62 



Arctic spear-grass 40 



Arena lia congesta 61 



hookeii 61 



nuttallii 61 



Ariiitida fasdculata 32 



Artemisia 23, 25. 53. 67 



cana 67 



pedatijida 67 



spinexcens 19, 25, 67 



tridcntata 18, 25, 67 



trifida 67 



Ashy rock-cress 62 



Asler adscendens 66 



Astragalus 63 



'jraijii 63 



haydenianus nevadensis 63 



hypoglollis 63 



megacnrpus 63 



molliisimus 53 



Atriplez 19, 23. 53 



argentea 59 



confertifolia 19. 25, 59 



expansa 60 



hastata ' 60 



nuttallii 19, 24, 60 



Page. 



Atrijilex pabularis 60 



truneata 60 



volutans 24 



Australian saltbush 23 



Awued sedge 52 



BaUamorhiza hirsuta 66 



Baltic rush 53 



Bank wheat-grass 48 



Bearded wheat-grass 47 



Bebb's willow 59 



Beckuiannia eruca-formis 39 



Bench-land spear-grass '. 40 



Bent-grasses 29 



Big sand-grass 37 



Black grama. 33 



Blitum, capitatum 59 



Bine-joint grass 29. 36 



Bouteloua oligostachya 38 



Brebner's rock-cress 62 



Brome-grasses 28 29 



Broinus 28 



ciliatui scariosus 46 



kalmii 45 



multijlorus 29, 46 



porteri 46 



scabratus 46 



Bud-brnsh 19,25,67 



sage 25 



Buft'ald grass 39 



Bunch-grass 29 55 



sandwort 61 



wheat-grass 47 



Bulbous melic-grass 40 



Biittercnp gj^ 



Calamagrostis 29 



canadensis 35 



acuminata 36 



hyperborea americana 36. 55 



montanensis 36 



neglecta 55 



2JUrp urascens 37 



scribneri 37 



Calaniovilfa longifolia 37 



California oat-grass 37 



Oarduus leiocephalus 67 



Carex 31^53 



acutina tenuior 50 



atli roUaclnja 3] , 51) 



atrata 51) 



aurea .50 



deflexa media 50 



doiiglasii 50 



ele charts 53 



f estiva stricta 31, 50 



viridis 51 



fdifolia 51 



yeycri 51 



hoodii 5x 



jonesii 51 



lanuginosa 31, 51 



69 



