666 



INDEX 



Hicoria ovata, 270 



villosa, 270 

 Hieracium, 646 



aurantiacum, 646 



canadense, 20, 647 



florentinum, 647 



floribundum, 648 



Gronovii, 648 



marianum, 647 



murorum, 648 



paniculatum, 647 



Pilosclla, 646 



pratense, 647 



scabrum, 647 



venosum, 647 



vulgatum, 646 

 jffierochloe, 120 

 Hippocastanaceae, 436 

 Hipposelinum Levisticum, 



482 

 Hole us, 98 



halepensis, 98 



Sorghum, 98 

 Homilocenchrus, 119 



oryzoides, 119 



virginicus, 1 19 

 Honkcnya, 310 



peploides, 310 

 Hordeum, 149 



jubatum, 149 



murinum, 149 



nodosum, 149 



pusillum, 149 



vulgare, 149 

 Hottonia, 497 



inflata, 497 

 Houstonia, 569 



coerulea, 28, 569 



longifolia, 569 



purpurea, 570 

 Hudsonia, 448 



ericoides, 448 



tomentosa, 448 

 Humulus, 282 



japonicus, 282 



Lupulus, 282 

 Hydrangea, 356 



arborescens, 16, 356 

 Hydrangeaceae, 356 

 Hydrastis, 318 



canadensis, 318 



Hydrocharitaceae, 90 

 Hydrocotyle, 474 



americana, 474 



Canbyi, 474 



ranunculoides, 16, 475 



rotundifolia, 475 



umbellata, 474 



verticillata, 474 

 Hydrophyllaceae, 519 

 Hydrophyllum, 519 



virginianum, 519 



canadense, 519 

 Hyoscyamus, 547 



albus, 547 



niger, 547 

 Hypericaceae, 442 

 Hypericum, 443 



adpressum, 444 



Ascyron, 444 



Bissellii, 6, 32, 445 



boreale, 23, 445 



canadense, 446 



densiflorum, 444 



dissimulatum, 446 



ellipticum, 445 



gymnanthum, 16, 446 



humifusum, 446 



macutatum, 445 



majus, 20, 446 



mutilum, 446 



perforatum, 445 



prolificum, 444 



punctatum, 445 



subpetiolatum, 445 



virgatum, 16, 445 

 ovalijolium, 445 

 Hypochaeris, 642 



glabra, 642 



radicata, 642 

 Hypopitys, 487 



americana, 487 



lanuginosa, 487 

 Hypoxis, 242 



hirsuta, 242 

 Hyssopus, 539 



officinalis, 539 

 Hystrix, 150 



Hystrix, 150 



Iberis amara, 349 

 umbellata, 349 



Ibidium, 254 



Beckii, 256 



cernuum, 255 



gracile, 256 



plantagineum, 23, 255 



praecox, 15, 255 



strictum, 6, 19, 255 



vernale, 255 

 Ilex, 430 



bronxensis, 431 



fastigiata, 431 



glabra, 431 



laevigata, 432 



mollis, 431 



monticola, 6, 431 

 mollis, 431 



opaca, 430 



verticillata, 431 

 Ilicioides, 432 

 Ilysanthes, 554 



attenuata, 555 



dubia, 554 

 Impatiens, 436 



aurea, 437 



biflora, 436 



pallida, 29, 437 

 Imperatoria Ostruthium, 



482 

 Inula, 620 



dysenterica, 620 



Helenium, 620 



pulicaria, 620 

 Inuleae, 617 

 Ionactis, 617 



linariifolius, 617 

 Ionoxalis, 416 



violacea, 22, 416 

 Ipomoea, 514 



hederacea, 515 



hirsutula, 515 



lacunosa, 514 



pandurata, 514 



purpurea, 514 

 Iridaceae, 242 

 Iris, 243 



germanica, 243 



orientalis, 243 



prismatica, 243 



Pseudacorus, 243 



versicolor, 243 

 Isanthus, 529 



