1174 



Index 



PAGE 



Berberis 476 



canadensis 477 



Thunbergii 476 



vulgaris 476 



Bergamot, hairy wild 815 



wild 815 



Bermuda grass 143 



Berteroa 509 



incana 509 



Besseya 850 



Bullii 850 



Betula 374 



alba var. papyrifera 376 



alleghaniensis 375 



lenta 1039 



lutea 375 



lutea f. fallax 375 



lutea var. macrolepis 375 



nigra 376 



papyrifera 376 



populifolia 375 



pumila 376 



pumila var. glandifera 376 



Purpusii 376, 1039 



Sandbergii 1039 



Betulaceae 373 



Bibliography 1130 



Bicuculla canadensis 483 



Cacullaria 483 



Bidens 981 



aristosa 984 



aristosa var. Fritcheyi 984 



aristosa var. mutica 984 



Beckii 985 



bipinnata 983 



cernua 982 



comosa 983 



connata 983 



connata var. petiolata 983 



coronata 984 



coronata var. tenuiloba 984 



discoidea 984 



frondosa 985 



laevis 1102 



mitis 1102 



polylepis var. retrorsa 985 



trichosperma 984 



vulgata 985 



ciiUjuta var. puberula 985 



Big bluestem 179 



Bignonia 858 



capreolata 858 



radicans 858 



Bignoniaceae 858 



Bindweed 774 



black 417 



PAGE 



field 775 



hedge 775 



Birch 374 



dwarf 376 



gray 375 



paper 376 



river 376 



yellow 375 



Bishopscap 519 



Bittercress 497 



bulb 497 



northern 498 



Pennsylvania 498 



smallflower 499 



Bittersweet 831 



American 653 



Bitterweed 987 



Blackberry, Allegheny 561 



highbush 562 



Blackberry-lily 333 



Blackhaw 883 



southern 883 



Bladdernut, American 654 



Bladderwort, greater 864 



horned 863 



humped 863 



lesser 864 



purple 863 



Blephariglottis blephariglottis 1037 



ciliaris 342 



grandiflora 1037 



lacera 343 



leucophaea 343 



peramoena 343 



psycodes 343 



Blephilia 816 



ciliata 816 



hirsuta 817 



Blitum capitatum 422 



Bloodroot 481 



Bluebead 317 



Bluebell 792 



Virginia 792 



Blueberry, Canada 744 



dryland 743 



highbush 742 



lowbush 743 



Bluecurls 801 



Blue-eyed grass 334 



Blue-eyed Mary 836 



Bluegrass 104 



annual 105 



Canada 106 



Chapman 105 



English 101 



fowl 107 



