1200 



Index 



PAGE 



Honeysuckle 888 



American fly 889 



grape 890 



hairy 1093 



Japanese 889 



limber 889 



swamp fly 1093 



Tartarian 1093 



trumpet 1093 



Honewort 723 



Hop 396 



American 396 



common 1041 



Japanese 396 



Hop-hornbeam 373 



Hopkins, Milton S 10 



Hoptree, common 632 



Hordeae 113 



Hordeum 119 



jubatum 120 



nodosum 119 



pusillum 119 



vulgare 1027 



Horehound, common 806 



Horned Pondweed 84 



Hornwort 454 



Horsebalm, citronella 826 



Horsegentian 884 



common 885 



yellow-flower 886 



Horsemint 816 



Horseradish 496 



Horsetail, field 60 



meadow 1021 



water 62 



wood 1021 



Hosackia 597 



americana 1066 



Hottonia 745 



inflata 745 



Houndstongue 788 



common 789 



Houstonia 871 



angustifolia 871 



caerulea 871 



canadensis 1091 



canadensis 872 



ciliolata 1091 



ciliolata 872 



lanceolata 1091 



longifolia 872 



mountain 871 



narrow leaf 871 



purpurea 871 



purpurea f. pubescens 871 



tenuifolia 1091 



PAGE 



Hudsonia 679 



tomentosa var. intermedia 679 



woolly 679 



Humulus 396 



ainericanus 396 



japonicus 396 



Lupulus 1041 



Lupulus 396 



Hybanthus 681 



concolor 681 



concolor f. subglabratus 681 



Hydrangea 519 



arborescens 520 



arborescens var. Deamii 520 



arborescens var. oblonga 520 



arborescens var. sterilis 520 



smooth 520 



Hydranthelium 844 



rotundifolium 844 



Hydrastis 455 



canadensis 455 



Hydrocharitaceae 91 



Hydrocotyle 716 



americana 716 



rotundifolia 1078 



umbellata 716 



Hydrophyllaceae 784 



Hydrophyllum 784 



appendiculatum 785 



canadense 785 



macrophyllum 785 



virginianum 785 



Hymenocallis 328 



occidentalis 328 



Hymenopappus 986 



carolinensis 986 



Hyoscyamus niger 1087 



Hypericaceae 671 



Hypericum 671 



adpressum 674 



adpressum var. spongiosum 675 



Ascyron 673 



aureum 673 



boreale 676 



canadense 676 



cistifolium 675 



densiflorum 1073 



denticulatum 675 



dolabriforme 674 



Drummondii 676 



ellipticum 1074 



frondosum 673 



gentianoides 676 



graveolens 1074 



gymnanthemum 1074 



Kalm 673 



