INDEX. 



411 



Grape Fern 9 



Grass, Barnyard 35 



Bear 102 



Bent 42 



Bermuda 61 



Blue 52 



Blue-eyed 105 



Brome 50 



Canary 37 



Cord 60 



Cotton 84 



Couch 62 



Eel 28 



English Rye 61 



Fowl Meadow 54 



Goose 61 



Hair 45 



Italian Rye 61 



Kentucky Blue 54 



Orchard 52 



Perennial Rye 61 



- Quack 62 



Reed Canary 36 



Reed Meadow 59 



Rough Meadow 54 



Rye 62 



Salt 56 



Slender Wheat 62 



Sweet Vernal 37 



Tall Oat 45 



Vanilla 37 



Velvet 44 



Wheat 61 



Grass Family 31 



Gratiola 320 



Green Foxtail 35 



Green Hellebore 103 



Grindelia 362 



Cromwell 303 



Ground Ivy 311 



Ground-pine 13 



Gum Plant 362 



Gymnogramme 2 



GYMNOSPERMAE 16 



Hair-grass 45 



HALORAGIDACEAE 253 



Harrimanella 280 



Hawkweed 356 



Hawthorn 200 



Hazelnut 120 



Heal All 311 



Heather Family 275 



Hedge Hyssop 320 



Hedge Mustard 175 



Hedge Nettle 313 



Hedysarum 225 



HELENIEAE 347 



Helenium 379 



HELIANTHEAE 347 



Helianthus 377 



Hellebore, False 103 



Green 103 



White 103 



Hemieva 192 



Hemitomes 271 



Hemizonella. . . 374 



Hemizonia 374 



Hemlock 22 



Black 23 



Mountain 23 



Water 263 



Western 23 



Heracleum 260 



Hesperis 173 



Hesperogenia 267 



Heteranthera 86 



Heterocodon 344 



Heterostylus 28 



Heuchera 196 



Hieracium 356 



Hierochloe 37 



Hippuris 254 



Holcus 44 



Holly Fern 7 



Holodiscus 202 



Homalocenchrus 36 



Honeysuckle 338 



Honeysuckle Family 336 



Hoorebekia 363 



Hookera 94 



Hop Clover 221 



HORDEAE 34 



Hordeum 63 



Horehound 312 



Horned Pondweed 28 



Hornwort 151 



Hornwort Family 151 



Horsetail 11 



Common 11 



Horsetail Family 11 



Hosackia 225 



Hound's Tongue 301 



Howellia 342 



Huckleberry 276 



Hulsea 378 



Hutchinsia 181 



Hyacinth, Wild 94 



Hydastylus 106 



HYDROCHARITACEAE 30 



Hydrocotyle 263 



HYDROPHYLLACEAE 297 



Hydrophyllum 298 



HYPERICACEAE. . . 239 



