acutiformis, 598
adusta, 621, _621_
aestivalis, 604
_alata_, 622
alopecoidea, 615
alpina, 598
_angustata_, 600
_aperta_, 600
aquatilis, 600
_arcta_, 619
arctata, 603
arenaria, 616
_arida_, 620
_aristata_, 598
atrata, 599
aurea, 610
Backii, 613
_Barrattii_, 602
_Bebbii_, 620
_Boottiana_, 611
bromoides, 619
bullata, 594
_Buxbaumii_, 599
canescens, 618
capillaris, 603
capitata, 617
Careyana, 608
castanea, 603
cephaloidea, 617
cephalophora, 617
chordorhiza, 614
communis, 612
_comosa_, 596
conjuncta, 614
conoidea, 607
Crawei, 606
crinita, 601
_cristata_, 620
Crus-corvi, 614
Davisii, 605
debilis, 604, _604_
decomposita, 614
deflexa, 611
Deweyana, 619
digitalis, 608
_disticha_, 615
eburnea, 610
echinata, 618
_Emmonsii_, 611
exilis, 617
extensa, 606
filiformis, 597
_flaccosperma_, 605
flava, 606
flexilis, 603
foenea, 621, _622_
folliculata, 592
formosa, 605
Fraseri, 613
fusca, 599
gigantea, 593
_glabra_, 604
glaucodea, 605
gracillima, 604
grandis, 593
granularis, 605
gravida, 615
Grayii, 592
grisea, 605
gynandra, 601
gynocrates, 617
hirta, 597
Hitchcockiana, 607
Houghtonii, 597
hystricina, 596
intumescens, 592
irrigua, 602
Jamesii, 613
_Knieskernii_, 603
_lagopodioides_, 620
lanuginosa, 597
laxiculmis, 608
laxiflora, 607
lenticularis, 600
leporina, 622
limosa, 602
_limula_, 599
littoralis, 602
livida, 610
longirostris, 603
_lupuliformis_, 593
lupulina, 593
lurida, _593_, 595
Magellanica, 602
maritima, 601
_Meadii_, 609
Michauxiana, 592
_miliacea_, 601
miliaris, 593
_mirabilis_, 622
monile, 594
Muhlenbergii, 617
muricata, 616
Muskingumensis, 620
nigro-marginata, 613
Norvegica, 619
Novae-Angiae, _611_, 612
_OEderi_, 606
oligocarpa, 607
oligosperma, 593
_Olneyi_, 595
pallescens, 606
_paludosa_, 598
panicea, 609
pauciflora, 592
pedunculata, 610
Pennsylvanica, 612
picta, 610
_pinguis_, 621
plantaginea, 609
platyphylla, 608
polymorpha, 609
polytrichoides, 613
praecox, 612
prasina, 601
Pseudo-Cyperus, 596
ptychocarpa, 608
pubescens, 613
_pulla_, 594
rariflora, 602
_retrocurva_, 608
_retroflexa_, 616
retrorsa, 598
Richardsoni, 610
_rigida_, 599
riparia, 598
rosea, 616
_rostrata_, 592
_rotundata_, 593
salina, 601
Saltuensis, 609
Sartwellii, 615
scabrata, 597
Schweinitzii, 595
scirpoidea, 611
_scirpoides_, 618
scoparia, 620
Shortiana, 596
siccata, 619
silicea, 621
sparganioides, 616
squarrosa, 596
_stellulata_, 619
stenolepis, 596
stenophylla, 614
_Steudelii_, 613
stipata, 614
straminea, 621
striata, 597
stricta, 599
subulata, 592
_Sullivantii_, 605
sychnocephala, 622
tenella, 616
tentaculata, 595
tenuiflora, 619
teretiuscula, 614
tetanica, 609
_Torreyi_, 606
torta, 600
tribuloides, 620
triceps, 602
trichocarpa, 698
trisperma, 619
Carex Tuckermani, 594
umbellata, 612
utriculata, 594
_vaginata_, 609
varia, 611, _612_
_Vaseyi_, 594
venusta, 604
vestita, 597
virescens, 602
_vitilis_, 618
vulgaris, 599
vulpinoidea, 615
Willdenovii, 613
_Woodii_, 609
Carnation, 83
Carpetweed, 198
Carpinus, 474
Carrion-flower, 520
Carrot, 201
Carum, 208
Carya, 468
CARYOPHYLLACEAE, 82
Cashew Family, 118
Cassandra, 317
Cassena, 108
Cassia, 147
Cassiope, 318
Castanea, 479
Castelleia, 390
Castor-oil Plant, 460
Catalpa, 399
Cat-brier, 519
Catchfly, 83
Catgut, 133
Catmint, 416
Catnip, 416
Cat-tail Flag, 547
Caucalis, 201
Caulophyllum, 52
Ceanothus, 112
Cedar, Red, 494
White, 493, 494
Cedronella, 416
Celandine, 58
CELASTRACEAE, 109
Celastrus, 110
Celtis, 463, 734
Cenchrus, 634
Centaurea, 297
Centaury, 347
Centrosema, 145
Centunculus, 332
Cephaianthus, 234
Cephalozia, 711
Cerastium, 88
CERATOPHYLLACEAE, 488
Ceratophyllum, 488
Cercis, 147
_Cesia_, 723
Chaerophyllum, _206_, 209
Chaetopappa, 253
Chaffseed, 391
Chaffweed, 332
Chamaecyparis, 493
Chamaelirium, 531
Chamaesaracha, 374
Chamomile, 288
Wild, 289
Charlock, 72, 74
Cheat, 670
Checkerberry, 316
Cheilanthes, 681
Chelidonium, 58
Chelone, 381
CHENOPODIACEAE, 430
Chenopodium, 431
Cherry, 151
Cherry, Ground, 375
Sand, 152
Chervil, 206
Chess, 670
Chestnut, 479
Horse, 115
Chickweed, 86
Forked, 426
Indian, 198
Jagged, 87
Mouse-ear, 88
Chicory, 298
Chiloscyphus, 716
Chimaphila, 322
Chinquapin, 479
Water, 55
Chiogenes, 314
Chionanthus, 337
Chives, 522
Chokeberry, 164
Chondrilla, 303
Chrysanthemum, 289
Chrysogonum, 271
Chrysopogon, 638
Chrysopsis, 244
Chrysosplenium, 172
Cichorium, 298
Cicuta, 208
Cimicifuga, 47
Cinna, 649
Cinquefoil, 158
Circaea, 193
_Cirsium_, 295, 296
Cissus, 114
CISTACEAE, 76
Cladium, 586
Cladothrix, 734
Cladrastis, 126
Clary, 413
Claytonia, 91, 733
Clear-weed, 465
Cleavers, 225
Clematis, 35
Cleome, 75, 733
Cleomella, 75
Clethra, 322
Clintonia, 527
Clitoria, 145
Clotbur, 274
Cloudberry, 154
Clover, 128
Bush, 141
Prairie, 132
Sweet, 129
Club-moss, 695, 697
Cnicus, 295, _297_
Cocculus, 51
_Cochlearia_, 70
Cockle, 85
Cocklebur, 274
Coelopleurum, 205
Coffee, Wild, 219
Coffee-tree, Kentucky, 148
Cohosh, 47, 52
Colic-root, 512
Collinsia, 380
Collinsonia, 406
_Collomia_, 356
Coltsfoot, 291
Sweet, 292
Columbine, 45
Columbo, American, 352
Comandra, 450
Comfrey, 367
Wild, 362
Commelina, 538
COMMELINACEAE, 538
Compass-plant, 270
COMPOSITAE, 230
_Comptonia_, 470
Cone-flower, 270
Purple, 275
CONIFERAE, 489
Conioselinum, 202
Conium, 209
Conobea, 383
Conocephalus, 728
Conopholis, 394
Convallaria, 524
CONVOLVULACEAE, 367
Convolvulus, 369
Coptis, 45
Coral-berry, 220
Coral-root, 500
Corallorhiza, 500
Corema, 488
Coreopsis, 281
Corispermum, 434
CORNACEAE, 213
Cornel, 214
Corn-salad, 228
Cornus, 214
Coronilla, 138
Corpse-plant, 325
Corydalis, 61
Corylus, 473
Cottonwood, 487
Cowberry, 314
Cowslip, 321
American, 328
Virginian, 364
Cow-wheat, 393
Crab-apple, 164
Cranberry, 312, 314
Cranberry-tree, 217
Cranesbill, 103
Crantzia, 205
CRASSULACEAE, 170
Crataegus, 165
Cress, Bitter, 64
Mouse-ear, 72
Penny, 73
Rock, 65
Spring, 65
Swine, 74
Water, 69
Winter, 70
Crepis, 300
Cross-vine, 398
Crotalaria, 127
Croton, 457
Crotonopsis, 458
Crowberry, 487
Broom, 488
Crowfoot, 40
Crown-beard, 280
CRUCIFERAE, 61
_Crypsis_, 640
Cryptogramme, 682
Cryptotaenia, 207
Ctenium, 654
Cuckoo-flower, 65
Cucumber, 194
Bur, 195
Cucumber-root, Indian 529
Cucumber-tree, 49
Cucurbita, 196
CUCURBITACEAE, 194
Cudweed, 268
Culver's-physic, 386
Culver's-root, 386
Cunila, 409
Cuphea, 186
Cup-plant, 271
_Cupressus_, 493
Cupseed, 51
CUPULIFERAE, 470
Currant, 174
Indian, 220
Cuscuta, 369
Custard-apple Family, 50
Cyclanthera, 196
Cycloloma, 431
Cymopterus, 203
Cynodon, 654
Cynoglossum, 362, _363_
_Cynthia_, 298
CYPERACEAE, 567
Cyperus, 569
Cypress, 493
Cypress-vine, 368
Cypripedium, 510
Cystopteris, 689
Cytisus, 127
Dactylis, 663
_Dactyloctenium_, 656
Dahoon Holly, 108
Daisy, 253
Ox-eye, 289
White, 289
Dalea, 132
Dalibarda, 156
Dame's-violet, 71
Dandelion, 303
Dwarf, 297
Fall, 299
False, 303
Dangleberry, 311
Danthonia, 654
Daphne, 448
Darnel, 671
Datura, 377
Daucus, 201
Day-flower, 538
Dead-nettle, 420
Decodon, 186
Decumaria, 173
Deerberry, 312
Delphinium, 46
Dentaria, 64
Deschampsia, 652
Desmanthus, 149
Desmodium, 138
Devil's-bit, 531
Dewberry, 155
_Deyeuxia_, 650
Dianthera, 401
Dianthus, 83
Diapensia, 326
DIAPENSIACEAE, 326
Diarrhena, 662
Dicentra, 60
Dichondra, 368
Dichromena, 577
Dicksonia, 691
Didiplis, 184
Diervilla, 222
Diodia, 225
Dionaea, 179
Dioscorea, 517
DIOSCOREACEAE, 517
Diospyros, 333
Diphylleia, 53
Diplachne, 658
_Diplopappus_, 263
Diplophyllum, 715
DIPSACEAE, 229
Dipsacus, 229
Dirca, 448
Discopleura, 209
Disporum, 526
Distichus, 663, 735
Dittany, 409
Dock, 437
Prairie, 270
Spatter, 56
Dockmackie, 218
Dodder, 370
Dodecatheon, 328
Dogbane, 338
Dogwood, 214
Draba, 67
Dracocephalum, 416
Dragon-head, 416
False, 419
Dragon-root, 549
Drosera, 178
DROSERACEAE, 178
Dryas, 157
Duck's-meat, 552
Duckweed, 552
Dulichium, 573
Dumortiera, 729
Dutchman's-breeches, 60
Dutchman's-pipe, 445
_Duvalia_, 729
Dyer's-weed, 75
Dysodia, 288
Eatonia, 659
EBENACEAE, 333
Ebony Family, 333
Echinacea, 275
Echinocystis, 195
Echinodorus, 556
Echinospermum, 362
Echium, 367
Eclipta, 274
Eel-grass, 496, 565
Eglantine, 164
ELAEAGNACEAE, 448
Elaeagnus, 448
ELATINACEAE, 91
Elatine, 91
Elder, 217
Box, 118
Marsh, 272
Wild, 213
Elecampane, 269
Eleocharis, 573, 735
Elephantopus, 237
Elephant's-foot, 237
Eleusine, 656
Ellisia, 358
Elm, 462
Elodea, 495
Elodes, 95
Elymus, 673
EMPETRACEAE, 487
Empetrum, 487
Enchanter's Nightshade, 193
Engelmannia, 272
Enslenia, 343
Epigaea, 315
Epilobium, 188
Epipactis, 504
Epiphegus, 394
EQUISETACEAE, 675
Equisetum, 676
Eragrostis, 660
Eranthis, 45
Erechtites, 294
Erianthus, 636
Erica, 318
ERICACEAE, 309
Erigenia, 210
Erigeron, 264
ERIOCAULEAE, 566
Eriocaulon, 566
Eriochloa, 629
Eriogonum, 436, 734
Eriophorum, 582
Erodium, 104
Eryngium, 211
Eryngo, 211
Erysimum, 71
Erythraea, 347
Erythronium, 528
Eulophus, 206
Euonymus, 110
Eupatorium, 239
Euphorbia, 452
EUPHORBIACEAE, 451
Euphrasia, 391
Eustoma, 349
Evax, 267
Evening Primrose Family, 186
Everlasting, 267, 268
Evolvulus, 370
Eyebright, 391
Fagopyrum, 443
Fagus, 479
False-mermaid, 104
Farkleberry, 312
Featherfoil, 328
_Fedia_, 229
_Fegatella_, 729
Fennel, 205
Dog, 239
Fennel-flower, 48
Fern, Beech, 686
Bladder, 689
Chain, 683
Christmas, 689
Cinnamon, 693
Climbing, 692
Cloak, 680
Filmy, 692
Flowering, 693
Lip, 681
Sensitive, 690
Shield, 686
Wood, 686
Ferns, 678
Fescue, 668
Sheep's, 669
Festuca, _666_, 668
Fever-bush, 447
Feverfew, 289
Feverwort, 219
FICOIDEAE, 198
Fig, Indian, 197
Figwort, 380
Filago, 267
Filbert, 473
FILICES, 678
Fimbriaria, 728
Fimbristylis, 577
Fiorin, 647
Fir, 492
Fire-weed, 188, 294
Five-finger, 158
Flag, 513
Cat-tail, 547
Sweet, 551
Flax, 101
Fleabane, 264
Marsh, 266
Floating-heart, 353
Floerkea, 104
Flower-de-luce, 513
Fly-poison, 535
Foeniculum, 205
Fog-fruit, 402
Forestiera, 336
Forget-me-not, 364
_Forsteronia_, 338
Fossombronia, 723
Fothergilla, 179
Four-o'clock, 425
Foxberry, 314
Foxglove, False, 389
Mullein, 338
Foxtail, 634
Fragaria, 158
_Frangula_, 112
Frasera, 352
Fraxinus, 335
Fringe-tree, 337
Froelichia, 430
Frog's-bit, American 496
Frost-weed, 76
Frullania, 704, _706_
Fuirena, 583
Fumaria, 61
FUMARIACEAE, 59
Fumitory, 61
Climbing, 66
Gaillardia, 288
Galactia, 146
Galax, 327
Gale, Sweet, 469
Galeopsis, 421
Galingale, 569
Galinsoga, 234, 286
Galium, 225
Gall-of-the-earth 301
Garget, 436
Garlic, 521
Gaultheria, 315
Gaura, 192
Gaylussacia, 311
Gelsemium, 345
Genisca, 127
Gentian, 349
Horse, 219
Spurred, 352
Gentiana, 349
GENTIANACEAE, 346
Geocalyx, 715
GERANIACEAE, 102
Geranium, 103
Feather, 433
Gerardia, 388
Germander, 406
Geum, 156
Gilia, 356
Gillenia, 154
Gill-over-the-ground, 416
Ginger, Wild, 444
Ginseng, 212
Glasswort, 434
Glaucium, 58
Glaux, 331
Gleditschia, 148
Globe-flower, 45
Glyceria, 666, _668_
Glycyrrhiza, 137
Gnaphalium, 268
Goat's-beard 153, 298
False, 169
Goat's-rue, 133
Golden-club, 551
Goldenrod, 246
False, 253
Rayless, 245
Goldthread, 45
Gonolobus, 344
Good-King-Henry 432
Goodyera, 503
Gooseberry, 174
Goosefoot, 431
Gordonia, 93
Gourd Family, 194
Gout-weed, 208
GRAMINEAE, 623
Grape, 113
Grape Hyacinth, 523
Graphephorum, 666
Grass Family, 623
Grass, Barnyard 633
Beak, 584
Bear, 524
Beard 636, 637, 648
Bengal, 634
Bent, 647, 648, 649
Bermuda, 654
Blue, English, 664
Blue, Kentucky, 665
Blue-eyed, 515
Blue-joint, 650, 671
Blue-stem, 671
Bottle, 634
Bottle-brush, 674
Brome, 669
Buffalo, 657
Bur, 634
Canary, 638
Catchfly, 636
Cat's-tail, 644
Cord, 627
Cotton, 582
Couch, 671
Crab, 630, 656
Cut, Rice, 636
Deer, 183
Ditch, 564
Dog's-tail, 656
Drop seed, 643, 645
Eel, 496, 565
Feather, 641
Fescue, 668
Finger, 630
Foxtail, 634, 645
Gama, 635
Goose, 226, 668
Hair, 644, 648, 652
Hedgehog, 634
Herds, 645, 647
Holy, 639
Hungarian, 634
Indian, 638
Joint, 629
June, 665
Lyme, 673
Manna, 666
Marsh, 627
Meadow 663, 665, 667
Melic, 662
Millet, 642
Muskit, 655
Oat, 641, 651, 654
Old-witch, 630
Orange, 95
Orchard, 663
Panic, 629
Pigeon, 634
Porcupine, 641
Quaking, 663
Quick, or Quitch, 671
Rattlesnake, 667
Ray, 671
Redtop, 647, 657, 665
Reed, 627, 649
Rib, 423
Ribbon, 639
Ripple, 423
Rush, 645
Rye, 671, 673
Salt, 627
Sand, 658
Scorpion, 364
Scurvy, 71
Scutch, 654
Seneca, 639
Sesame, 635
Shave, 677
Soft, 652
Spear 663, 665, 668
Spike, 662, 663
Squirrel-tail, 672
Star, 512, 516
Sweet Vernal, 639
Tape, 496
Thin, 648
Timothy, 645
Toothache, 657
Triple-awned, 639
Umbrella, 583
Vanilla, 652
Velvet, 652
Wheat, Awned, 672
White, 336
Whitlow, 67, 68
Wire, 656, 664
Wood, 638
Worm, 346
Yard, 656
Yellow-eyed, 537
Grass of Parnassus, 173
Grass wrack, 565
Gratiola, 384
Greenbrier, 519
Green-dragon, 549
Greenweed, Dyer's, 127
Grimaldia, 729
Grindelia, 244
Gromwell, 365
False, 366
Groundnut, 144, 213
Groundsel, 292
Groundsel tree, 266
Guelder rose, 218
Gum-tree, 215
Sweet, 180
Gutierrezia, 243
Gymnocladus, 148
Gymnomitrium, _721_, 722
Gymnopogon, 655
_Gymnostichum_, 674
Gypsophila, 83
Habenaria, _506_, 506
Hackberry, 463
Hackmatack, 493
HAEMODORACEAE, 512
Halenia, 352
Halesia, 334
HALORAGEAE, 180
HAMAMELIDEAE, 179
Hamamelis, 179
Harbinger-of-spring, 210
Hardhack, 153
Harebell, 308
Harpanthus, 717
Hart's-tongue, 685
Haw, 166
Black, 219
Hawkbit, 298
Hawkweed, 299
Hawthorn, 165
Hazel, Witch, 179
Hazelnut, 473
Heal-all, 419
Heart's-ease, 78, 81
Heather, 318
Heath Family, 309
Hedeoma, 412
Hedysarum, 138
Helenium, 237
Heleochloa, 644
Helianthemum, 76
Helianthus, 277
_Heliophytum_, 362
Heliopsis, 275
Heliotropium (Heliotrope), 361
Hellebore, 45
False, 533
Helleborus, 45
Helonias, 531
Hemerocallis, 523
Hemicarpha, 583
Hemlock, 209, 492
Ground, 494
Water, 208
HEMODORACEAE, 512
Hemp, 463
Indian, 338
Water, 429
Henbane, 376
Hepatica, 34, 38
HEPATICAE, 702
Heracleum, 202
Herb-Robert, 103
Herba-impia, 267
Herberta, 709
Hercules' Club, 213
Herpestis, 383
Hesperis, 71
Heteranthera, 536
Heterotheca, 244
Heuchera, 171
Hexalectris, 501
Hibiscus, 100
Hickory, 468
Hieracium, 299
Hierochloe, 639
High-water Shrub, 272
Hippuris, 182
Hobble-bush, 217
Hoffmanseggia, 148
Hogweed, 273
Hoicus, 652
Holly, 107
Dahoon, 108
Mountain, 109
Holosteum, 87
Honewort, 207
Honeysuckle, 220
Bush, 222
_Honkenya_, 86
Hop, 464
Hop tree, 107
Hordeum, 672
Horehound, 419
Black, 420
Fetid, 420
Water, 408
Hornbeam, 474
Hop, 474
Hornwort, 488
Horse-brier, 520
Horse-chestnut, 115
Horseradish, 70
Horse-sugar, 335
Horsetail, 676
Horse-weed, 265
Hosackia, 130
Hottonia, 328
Hound's-tongue, 362
Houstonia, 222
Huckleberry, 311
Squaw, 312
Hudsonia, 76
Humulus, 464
Huntsman's-cup, 57
Hyacinth, Grape, 523
Wild, 523
Hydrangea, 173
Hydrastis, 48
HYDROCHARIDACEAE, 495
Hydrocotyle, 210, 733
Hydrolea, 360
HYDROPHYLLACEAE, 357
Hydrophyllum, 357
Hymenocallis, 516
Hymenopappus, 286
Hyoscyamus, 376
HYPERICACEAE 92
Hypericum, 92
Hypoxis, 516
Hyssopus (Hyssop) 409
Giant, 415
Hedge, 384
Ilex, 107
ILICINEAE, 107
ILLECEBRACEAE 426
Ilysanthes, 385
Impatiens, 105
Indian-physic 154
Indian-pipe 325
Indian-poke 534
Indigo, 133
False, 125, 131
Wild, 125
Indigofera, 133
Inkberry, 109
Innocence, 223
Inula, 269
Ionidium, 81
Ipecac, American 154
Ipomoea, 368
Iresine, 429
IRIDACEAE, 513
Iris, 513, 735
Ironweed, 238
Iron-wood, 474
Isanthus, 406
Isoetes, 698
Isopyrum, 44
Itea, 174
Iva, 272
Ivy, American, 115
Ground, 416
Poison, 119
Jacob's-ladder, 357
Jamestown-weed, 377
Jatropha, 457
Jeffersonia, 53
Jessamine, Yellow, 345
Jewel-weed, 105
Joe-Pye Weed, 239
Jubula, 706
Judas-tree, 147
JUGLANDACEAE 467
Juglans, 467
JUNCACEAE, 539
Juncus, 540
Juneberry, 166
Jungermannia, _710-712, 714, 715, 717, 718_, 718, _722_
JUNDERMANNIACEAE, 702
Juniperus (Juniper), 494
JUSSIAEA, 187
Kalmia, 310, 319
Kantia, 713
Ketmia, Bladder, 100
King-nut, 468
Kinnikinnik, 214
Knapweed, 297
Knawel, 427
Knotweed, 439
Knotwort Family, 426
Kochia, 431
Koeleria, 659
Kosteletzkya, 100
Krigia, 297
Krynitzkia, 363
Kuhnia, 241
Kyllinga, 573
LABIATAE, 403
Lachnanthes, 512
Lachnocaulon, 567
Lactuca, 303
Lady's-mantle, 161
Lady's-slipper, 510
Lady's-thumb, 441
Lady's-tresses, 501
Lambkill, 319
Lamb's-quarters, 432
Lamium, 420, 734
Lampsana, 297
Laportea, 465
Larch, 492
Larix, 492
Larkspur, 46
Lathyrus, 143
LAURACEAE, 446
Laurel, 319, 321
American, 319
Ground, 315
Mountain, 319
Laurestinus, 217
Lavender, Sea, 327
Lead-plant, 131
Leadwort Family, 327
Leaf-cup, 269
Leather-flower, 36
Leather-leaf, 317
Leatherwood, 448
Leavenworthia, 63
Lechea, 77
Ledum, 321
Leek, Wild, 521
Leersia, 636
LEGUMINOSAE, 122
Leiophyllum, 322
Lejeunea, 707
Lemna, _552_, 552
LEMNACEAE, 551
LENTIBULARIACEAE, 395
Leontodon, 298
Leonuras, 420
Lepachys, 277
Lepidium, 73
Lepidozia, 710
_Lepigonum_, 89
Leptocaulis, 209
Leptochloa, 656, _658_
_Leptopoda_, 287
Lepturus, _655_, 672
Lespedeza, 141
Lesquerella, 68
Lettuce, 303
Lamb, 228
White, 301
_Leucanthemum_, 289
Leucothoe, 317
Lever-wood, 474
Liatris, 242, _243_
Ligusticum, 204
Ligustrum, 337
LILIACEAE, 517
Lilium, 529
Lily, 529
Atamasco, 516
Blackberry, 515
Day, 523
Pond, 56
Water, 55
Lily-of-the-valley, 524
Limnanthemum, 353
Limnobium, 496
Limosella, 384
LINACEAE, 101
Linaria, 379
Linden, 101
Lindera, 447
Ling, 318
Linnaea, 219
Linum, 101
Liochlaena, 718
Lion's-foot, 301
Liparis, 499
Lipocarpha, 584
Lippia, 402
Liquidambar, 179, 180
Liquorice, 137
Wild, 226
Liriodendron, 50
Listera, 501
Lithospermum, 365
Litsea, 447
Littorella, 424
Live-forever, 178
Liver-leaf, 38
Liverworts, 702
Lizard's-tail, 446
LOASACEAE, 193
Lobelia, 305
LOBELIACEAE 305
Loblolly-bay, 96
Locust, 134
Honey, 148
Water, 149
LOGANIACEAE, 345
Loiseleuria, 322
Lolium, 671
Lonicera, 220
Loosestrife, 185, 330
False, 187
Swamp, 186
Lophanthus, 415
Lophiola, 512
Lophocolea, 715
Lopseed, 403
LORANTHACEAE, 449
Lousewort, 392
Lovage, 202
Lucerne, 129
Ludwigia, 187
Lungwort, 363
Lunularia, 730
Lupinus (Lupine), 128
Luzula, 546
Lychnis, 85
Lycium, 376
Lycopsis, 367
LYCOPODIACEAE, 695
Lycopodium, 695
Lycopus, 408
Lygodesmia, 302
Lygodium, 692
Lysimachia, _330_, 330
LYTHRACEAE, 184
Lythrum, 185
Maclura, 464
Madder Family, 222
_Madotheca_, 708, 709
Magnolia, 49
MAGNOLIACEAE, 49
Maianthemum, 526
Maidenhair, 680
Mallow, 97
False, 98
Glade, 98
Indian, 99
Marsh, 97
Rose, 100
Malva, 97
MALVACEAE, 96
Malvastrum, 98
Mamillaria, 197
Mandrake, 53
Man-of-the-earth, 369
Maple, 117
Ash-leaved, 118
Marchantia, 727
MARCHANTIACEAE, 727
Mare's-tail, 182
Marigold, Bur, 284
Fetid, 288
Marsh, 44
Water, 285
Marjoram, Wild, 411
Marrubium, 419
Marshallia, 286
Marsilia, 700
MARSILIACEAE, 700
Marsupella, 721
Martynia, 399
Marvel-of-Peru, 425
_Mastigobryum_, 710
Matricaria, 289
Matrimony-vine, 376
Mayaca, 538
MAYACEAE, 537
May-apple, 53
Mayflower, 315
May-weed, 288
Meadow-beauty, 183
Meadow-sweet, 153
Medeola, 529
Medicago, 129
Medick, 129
Melampyrum, 393
Melanthium, 533
MELASTOMACEAE, 183
Melica, 662, 735
Melilotus (Melilot), 129
Melissa, 412
Melothria, 196
MENISPERMACEAE, 51
Menispermum, 51
Mentha, 407
Mentzelia, 193
Menyanthes, 353
Menziesia, 319
Mercury, Three-seeded, 459
Mermaid-weed, 181
Mertensia, 363
Metzgeria, 724
Mezereum, 448
Mieranthemum, 385
Microstylis, 498
Mignonette, 75
Mikania, 239
Milfoil, 289
Water, 181
Milium, 642
Milkweed, 339
Green, 343
Milkwort, 120
Milkwort, Sea 331
Millet, 642
Mimulus, 382
Mint, 407
Cat, 416
Horse, 413
Mountain, 409
Pepper, 407
Spear, 407
Mirabilis, 425
Mist-flower, 241
Mistletoe, 450
False, 449
Mitchella, 224
Mitella, 171
Mitreola, 346
Mitrewort, 171, 346
False, 171
Moccason-flower, 510
Mocker-nut, 468
Modiola, 100
Mollugo, 198
Monarda, 413
Moneses, 323
Moneywort, 331
Monkey-flower, 382
Monkshood, 46
Monotropa, 325
_Montelia_, 429
Moonseed, 51
Moonwort, 693
Moosewood, 443
Morning-glory, 368
Morus, 464
Moschatel, 216
Moss, Black, or Long, 411
Club, 695, 697
Flowering, 326
Motherwort, 420
Mouse-tail, 40
Mudwort, 384
Mugwort, 291
Muhlenbergia, 643
Mulberry, 464
French, 403
_Mulgedium_, 304,305
Mullein, 379
Munroa, 659
Muscari, 523
Mustard, 72
Hedge, 71, 72
Tansy, 72
Tower, 66
Treacle, 71
Wormseed, 71
Mylia, 717
Myosotis, 364
Myosurus, 40
Myrica, 469
MYRICACEAE, 469
Myriophyllum, 181
Myrtle, Sand, 322
Wax, 469
_Nabalus_, 301, 302
Naiad, 565
NAIADACEAE, 557
Naias, 565
Napaea, 98
Nardia, 721
_Nardosmia_, 292
Narthecium, 532
Nasturtium, 69
Neckweed, 387
Negundo, 118
_Nelumbium_, 55
Nelumbo, 55
Nemastylis, 514
Nemopanthes, 109
Nemophila, 358
Nepeta, 416
_Nesaea_, 186
Nettle, 464
Dead, 420
False, 466
Hedge, 421
Hemp, 421
Horse, 374
Spurge, 457
Wood, 465
Nettle-tree, 463
Nicandra, 376
Nicotiana, 377
Nigella, 48
Nightshade, 373
Enchanter's, 193
Nimble-Will, 644
Ninebark, 153
Nipplewort, 297
Nonesuch, 130
Notholaena, 680
Nothoscordum, 522
Notothylas, 727
Nuphar, 56
NYCTAGINACEAE, 54
Nymphaea, 55
NYMPHAEACEAE, 54
Nyssa, 215
Oak, 475
Jerusalem, 433
Poison, 119
Oakesia, 528
Oat, 653
Sea, 662
Water, 636
Wild, 654
Obolaria, 353
Odontoschisma, 713
OEnothera, 190
Oil-nut, 451
Oldenlandia, 224
OLEACEAE, 335
Oleaster Family, 448
Olive Family, 335
ONAGRACEAE, 186
Onion, 521
Onoclea, 690
Onopordon, 297
Onosmodium, 366
OPHIOGLOSSACEAE, 693
Ophioglossum, 695
Opuntia, 197
Orache, 433
Orange, Mock, 174
Osage, 464
Orange-root, 48
ORCHIDACEAE, 497
Orchis, 498, 506
Crane, fly, 499
Rein, 506
Showy, 506
Origanum, 411
Ornithogalum, 523
OROBANCHACEAE, 393
Orobanche, 395, 734
Orontium, 551
Orpine, 177
Orthocarpus, 391
Oryzopsis, 642
Osier, 480
Osmorrhiza, 210
Osmunda, 692
Ostrya, 474
Oxalis, 105
Ox-eye, 275, 289
Sea, 277
Oxybaphus, 425
Oxydendrum, 316
Oxyria, 437
Oxytropis, 137
Oyster-plant, 298
Pachysandra, 456
Pachystima, 110
Paepalanthus, 567
Painted-cup, 390
Pallavicinia, 723
_Pancratium_, 516
Panicum, 629
Pansy, 81
Papaver, 59
PAPAVERACEAE, 57
Papaw, 50
Pappoose root, 53
_Pardanthus_, 515
Parietaria, 466
Parnassia, 173
Paronychia, 426
Parsley Family, 198
Parsley, Fool's, 205
Hemlock, 202
Parsley-piert, 161
Parsnip, 202
Cow, 202
Meadow, 204
Water, 207
Parthenium, 272
Partridge Berry, 224
Paspalum, 628
Pasque-flower, 37
Passiflora, 194
PASSIFLORACEAE, 194
Passion flower, 194
Pea, Beach, 143
Butterfly, 145
Everlasting, 143
Hoary, 133
Milk, 146
Partridge, 148
Peanut, Hog, 146
Pear, 164
Alligator, 446
Prickly, 197
Pearlwort, 88
Pecan-nut, 468
PEDALIACEAE, 399
Pedicularis, 392
Pellaea, 682
Pellia, 724
Pellitory, 466
Peltandra, 549
Pennycress, 73
Pennyroyal, American, 412
Bastard, 405
False, 406
Mock, 412
Pennywort, Water, 210
Penthorum, 176
Pentstemon, 381
Pepper Family, 446
Pepper, Water, 441
Pepper-bush, 322
Peppergrass, 73
Pepperidge, 215
Peppermint, 407
Pepper-root, 64
Pepperwort, 73
Perilla, 407
Periploca, 339
Persea, 446
Persimmon, 333
Petalostemon, 132
Petasites, 292
_Petroselinum_, 208
Peucedanum, 203
Phacelia, 359
Phalaris, 638
Phaseolus, 144, _145_
Pheasant's-eye, 48
Phegopteris, 686
_Phelipaea_, 395
Philadelphus, 174
Phleum, 644
Phlomis, 420
Phlox, 354
Phoradendron, 449
Phragmites, 658
Phryma, 403
Phyllanthus, 457
_Phyllodice_, 318
Physalis, 375
Physocarpus, 153
Physostegia, 419
Phytolacca, 436
PHYTOLACCACEAE, 435
Picea, 491
Pickerel-weed, 536
Picris, 299
Pigeon berry, 436
Pig nut, 469
Pigweed, 428, 431
Winged, 431
Pilea, 465
Pimpernel, 331
False, 385
Water, 332
Pimpinella, 206
Pine, 490
Ground, 697
Pine-apple, Family, 511
Pine-drops, 325
Pine sap, 325
Pine weed, 95
Pinguicula, 397
Pink, 83, 84
Fire, 84
Pink-root, 346
Pinus, 490, 734
Pinweed, 77
Pinxter flower, 320
PIPERACEAE, 446
Pipe vine, 445
Pipewort, 566
Hairy, 567
Pipsissewa, 322
Pitcher-plant, 57
Plagiochila, 717
Plane-tree Family, 466
Planer-tree, 463
PLANTAGINACEAE, 422
Plantago, 422
Plantain, 422
Indian, 294
Mud, 536
Rattlesnake, 503
Robin's, 266
Water, 554
PLATANACEAE, 466
Platanus, 466
_Pleuranthe_, 718
Pleurisy-root, 340
Pleurogyne, 352
Plucea, 266
Plum, 151
Date, 333
Plum, Ground, 135
Red, 151
PLUMBAGINACEAE, 327
Poa, 663
Podophyllum, 53
PODOSTEMACEAE, 444
Podostemon, 444
Pogonia, 505
Pokeweed, 436
Polanisia, 74
POLEMONIACEAE, 354
Polemonium, 356
Polygala, 120
POLYGALACEAE, 120
POLYGONACEAE, 436
Polygonatum, 524
Polygonella, 443
Polygonum, 439, _443_
Polymnia, 269
Polypodium, 680
Polypody, 680
Polypogon, 648
Polypremum, 345
Polytaenia, 203
Pomme-blanche, 131
Pond spice, 447
Pondweed, 558
Horned, 565
Pontederia, 536
PONTEDERIACEAE, 535
Poplar, 486
White, 50
Poppy, 59
Celandine, 58
Corn, 59
Horn, 58
Mexican, 59
Prickly, 59
Populus, 486
Porella, 708
Portulaca, 90
PORTULACACEAE, 90
Potamogeton, 558
Potato vine, Wild, 369
Potentilla, 158
Poterium, 161
Preissia, 728
Prenanthes, 300
Prim, 337
Primrose, 329
Evening, 190
Primula, 329
PRIMULACEAE, 328
Prince's-feather, 441
Prince's-pine, 323
_Prosartes_, 527
Psilocarya, 577
Psoralea, 130
Ptelea, 107
Pteris, 681
Pterospora, 325
Ptilidium, 709
Puccinellia, 668
Puccoon, 365
Yellow, 48
Pulse, Family, 122
Purslane, 90
Sea, 198
Water, 184, 188
Putty-root, 499
Pycnanthemum, 409