902 



INDEX 



Grass, Snake 150 

 Spear 154, 156 



Spike 153 



Squirrel-tail 167 

 Star 294, 299 



Stink 150 



Sweet Vernal 121 

 Switch 104 



Tall Oat 141 



Tape 85 



Thin 133 



Toothache 146 



Triple-awned 124 

 Umbrella 197 



Vanilla 122 



Velvet 137 



White 120 



White Bent 132 

 Whitlow 422 



Wild Oat 141 



Wire 155 



Wood 95 



Wood ReeJ 136 

 Wool 195 



Woolly Beard 92 

 Wrack 78 



Yard 147 



Yellow-eyed 262 



Gratiola 725 



acuminata 724 



anagallidea 725 

 aurea 726 



duhia 725 



pilosa 726 



sphaerocarpa 726 

 virginiana 726 



\nscosa 726 



Gray Birch 334, 335 

 Oak 341 



Pine 64 



Great Bulrush 192 

 Burdock 855 



Cliickweed 382 

 Indian Plantain 



852 

 Laurel 632 



Lobelia 768 



Ragweed 828 



St. John'.s-wort 



572 

 Solomon's Seal 



292 

 Water Dock 355 

 Willow-herb 596 



Greater Bladderwort 

 737 



Great-lsaved Mag- 

 nolia 409 



Great-spurred Violet 

 584 



Greek Valerian 676 



Green Alder 336 



Amaranth 371 



Ash 651 



Bner 294, 295 



Dragon 257 



Foxtail 118 



Hellebore 405 



Milkweed 666 



Violet 579 



Grim the Collier 872 



Grindelia 786 



lanceolata 786 



squarrosa 786 



Gromwell 685 



Common 686 



Corn 685 



False 687 



Ground Cherry 714 

 Hemlock 62 



Ivy 697 



Laurel 636 

 Pine 57 



Pink 675 



Plum 515 



Groundnut 528, 606 



Groundsel 852 



Common 853 



Tree 819 



Guelder Rose 759 



Gum Succory 864 



Tree, Sweet 453 



Gum-plant 786 



Gutierrezia 786 



Euthamiae 787 



Sarothrae 787 



Gymnadeniopsis cla- 



vellata 309 



Integra 309 



nivea 309 



Gymnocladus 504 



canadensis 504 



dioica 504 



Gymnopogon 145 



ambiguus 145 



brevifoUus 145 



racemostis 145 



Gypsophila 387 



muraUs 387 



Gyrostachys 313 



stricta 315 



Gyrotheca tinctoria 



296 



Habenaria 308 



Andrewsii 3 1 1 

 blephariglottis 310 

 blepfuiriglottis X 



cristata 310 



bracteata 308 



Canbyi 310 



ciliaris 310 



clavellata 309 



cristata 310 



dilatata 308 



fimbriata 311 



flava 308 



grandiflora 311 



Hookeri 309 



hyperborea 308 



intogra 309 



lacera 310 

 lacera X psychodes 

 311 



leucophaea 310 



macrophylla 310 



nivea 



obtusata 



orbiculata 



peramoena 



psychodes 



rotundifolia 



tridentata 



unalascensis 



308 

 309 

 390 

 311 

 311 

 307 

 309 

 309 



virescens 308 



Hackberry 346 



Hackmatack 65 



Haemodoraceae 



296 

 Hair Grass 



128, 132, 137 



Hairy Honeysuckle 



756 



Pipewort 261 



Vetch 526 



Halberd-leaved Rose 



Mallow 570 



Tear-thumb 362 



Violet 585 



Halenia 659 



deflexa 659 



Halesia 649 



Carolina 649 



tetraptera 649 



Haloragidaceae 



602 

 Hamamelidaceae 



452 

 Hamamelis 453 



virginiana 453 



H arb inger-of-Spring 

 612 

 Hardback 456 



Harebell 767 



Hare's Tail 196 



Hare's-ear Mustard 



429 



Hartmannia speciosa 



600 



Hart's Tongue 40 



Haw, Black 760 



Hawkbit 863 



Hawk's Beard 869 



Hawkweed 872 



Orange 872 



Hawthorn 460 



English 462 



Hay-scented Fern 45 



Hazelnut 333 



Beaked 333 



Heal-all 698 



Heart 's-ease 579, 587 



Heath Family 625 



Heather 637 



Hedeoma 705 



hispida 705 



pulegioides 705 



Hedge Bindweed 671 



Hyssop 725 



Mustard 429 



Nettle 701 



Hedysarum 518 



ainericanum 518 



boreale 518 



Helenium 844 



autumnale 844 



nudiflorum 844 



tenuifoliuni 844 



Heleochloa 128 



schoenoides 128 



Helianthemum 576 



canadense 577 



corymbosuin 577 



majus 577 



propinquum 577 



Heliantfdum tenel- 



lum 84 



Helianthus 833 



angustifolius 834 



annuus 833 



atrorubens 834 



Dalyi 835 



decapetalus 836 



divaricatus 835 



doronicoides 835 



giganteus 835 



grosseserratus 835 



hirsutus 835 



illinoensis 834 



Kellermani 835 



laetiflorus 834 



laevigatus 835 



Maximiliani 835 



microcephalus 835 



mollis 834 



occidentalis 834 



orgyahs 833 



parviflorus 835 



petiolaris 833 



rigidus 834 



scaberrimus 834 

 scroph ulariifolius 



836 



strumosus 836 



tomentosus 834 



tracheUifoUus 836 



tuberosus 836 



HeUopsis 829 



helianthoides 830 



laevis 830 



scabra 830 



Heliotrope 680 



Garden 762 



Seaside 680 



Heliotropium OSO 



curassavicum 680 



europaeum 680 



indicum 680 



tenellum 680 



Hellebore 405 

 American White 



285 



False 285 



Green 405 



Helleborus 405 



viridis 405 



Helonias 282 



bullata 283 



Hemerocalhs 287 



fulva 288 



Hemicarpha 198 



Drumnaondii 198 



