-hawthorn, 1021 



-lip ladies' tresses, 727 



-orchid, tall leafy-, 707 



-orchid, tail northern-, 

 706 



-parrot's-feather, 1208 



-rein-orchid, 710 



-sedge, 547 

 Groenlandia, 95 

 Grossularia, 1010 



inermis, 1010 

 Grossulariaceae, 1010 

 Groundnut, 1069 

 Groundsel, 1689 



-tree, 1606 

 Gulch grape, 1111 

 Gulf cordgrass, 262 

 Gum 



black-, 1265 



cotton-, 1265 



sour-, 1262 

 Gut, Devil's-, 1360 

 Gut, tangle-, 1360 

 Gymnadeniopsis 



clavellata, 711 



Integra, 700 



nivea, 703 

 Gymnospermae, 19, 79 

 Gyrostachys 



gracilis, 730 



odorata, 727 



praecox, 732 



Habenaria, 691 



Blephariglottis, 697, 700 



Chapmanii, 700 



ciliaris, 5, 697, 700 



clavellata, 5, 710 



cristata, 5, 700 



dilatata, 710 



flava, 703 



hyperborea, 706 



Integra, 700 



lacera, 695 



limosa, 703 



nivea, 5, 700 



NuttaUii, 697 



quinqueseta, 695 



repens, 9, 697 



saccata, 709 



sparsiflora, 709 

 brevifolia, 710 

 laxiflora, 710 



viridis 



bracteata, 711 

 Habranthus, 671 



texanus, 671 

 Machinal, 1157 

 Hackeha, 1389 



floribunda, 1391 



virginiana, 1389 

 Hairgrass, 222 



annual-, 222 



slender-, 222 



tufted, 224 

 Hairy 



-bitter-cress, 968 



-hedge-hyssop, 1467 



-maidenhair fern, 65 



-pepperwort, 55 



-pipewort, 593 

 Halberd-leaved rose- 

 mallow, 1118 

 Halenia, 1327 



recurva, 1327 



Rothrockii, Ull 

 Halesia, 1296 



Carolina, 1299 



diptera, 1299 

 Halodule, 9, 120, 129 



Beaudettei, 4, 120 



Wright a, 120 

 Halophila, 9, 129, 168 



Engelmannii, 4, 168 

 Haloragaceae, 1201 

 Haloragidaceae, 1201 

 Hamamelidaceae, 1011 

 Haplopappiis, 1609 



pliyllocephalus, 1610 



rubiginosus, 1610 

 Hard-stem bulrush, 360 

 Harebell, 1574 

 Harvest-lice, 1037 

 Haw 



apple-, 1020 



pasture-, 1019 



possum-, 1099, 1556 



red-, 1017 

 Hawk's-beard, 1703 

 Hawthorn, 1017 



bigtree-, 1020 



blueberry-, 1019 



green-, 1021 

 Hazel dodder, 1367 

 Hazel-nut family, 777 

 Heal-all, 1419 

 Heart-leaved twayblade, 



713 

 Heart sorrel, 800 

 Heath family, 1267 

 Hedge 



-bindweed, 1353 



-hyssop, 1467 

 golden-, 1468 

 hairy-, 1467 

 sticky-, 1467 



-nettle, 1429 

 Hedyotis, 1543 



Boscii, 1545 



corymbosa, 1545 



pygmaea, 1545 



uniflora, 1545 

 fasciculata, 1545 



Wrightii, 1545 

 He-huckleberry. 1276 

 Heimia, 1157 



longipes, 1158 



salicifolia, 1157 

 Helianthium parvulum, 139 

 Helianthus, 1367, 1368, 

 1369, 1655 



angustifolius, 1656 



ciliaris, 1369, 1656 



Maximiliana, 1659 



Nuttallii, 1659 



simulans, 1659 

 Helenium, 1367, 1677 



arizonicum, 1681 



autumnale, 1679 



canaliculatum, 1679 



Drummondii, 1679 



edwardsianum, 1679 



flexuosum, 1679 



Hoopesii, 1678 



microcephalum, 1679 



nudiflorum, 1679 



ooclinium, 1679 



Thurberi, 1678 

 Heliophytiim 



glabriusculum, 1385 

 Heliotrope, 1384 



seaside, 1386 

 Heliotropium, 1384 



curassavicum 



curassavicum, 1386 

 obovatum, 1386 

 oculatum, 1386 



glabriusculum, 9, 1385 



Greggii, 1386 



indicum, 1389 



molle, 9, 1385 



oculatum, 1386 



procumbens, 1386 



spathulatuni, 1386 

 Hemicarpha, 343, 415 



micrantha, 415 

 aristulata, 415 

 Drummondii, 415 

 micrantha. 415 

 minor, 415 

 Hemlock, poison-, 1233 

 Hemlock, water-, 1237 

 Hemp 



bog-, 791 



button-, 791 



Colorado River-, 1059 



Indian-, 1334, 1337 



water-, 862 



-weed, climbing-, 1599 



1754 



