580 
Hypericum 
pyramidatum 2 529 
Sarothra 536 
sphaerocarpum 532 
subpetiolatum 533 
virgatum 533 
“ ovalifolium 533 
virginicum 537 
Hypochaeris 3 309 
glabra 309 
radicata 309 
Hypopitys 2 674 
americana 675 
Hypopitys 675 
lanuginosa 675 
multiflora americana 
675 
Hypoporum 
verticillatum 1 351 
Hypoxis I 534 
erectum 534 
hirsuta 534 
Hyssopus 3 140 
anisatus 112 
nepetoides 111 
officinalis 140 
see Agastache 111-2 
Hystrix I 294 
(Asprella) 
Hystrix 204 
Ibidium I 563 
Beckii 566 
cernuum 565 
gracile 566 
incurvum 565 
ovale 565 
plantagineum 564 
praecox 566 
strictum 564 
vernale 565 
ex 2 486 
Aquifolium 486 
bronxensis 489 
Cassine 487 
coriacea 488 
Dahoon 487 
decidua 488 
fastigiata 489 
glabra 487 
laevigata 489 
lucida 488 
mollis 488 
montana 488 
monticola 488 
myrtifolia 487 
opaca 486 
verticillata 489 
“ padifolia 489 
“ tenuifolia 489 
vomitoria 487 
Iliamna 2 522 
remota 522 
ILICACEAE 486 
llicioides 2 490 
mucronata 490 
Illecebrum 
Paronychia 2 26 
Tlysanthes 3 195-6 
attenuata 196 
dubia 196 
gratioloides 196 
“ curtipedicellata 196 
riparia 196 
Impatiens 2 440 
aurea 441 
Balsamina 440 
biflora 440 | 
fulva 440 
noli-tangere 440 
Nortoni 440 
Impatiens 
pallida 2 441 
Imperatoria 2 638 
struthium 638 
Indigofera 2 371 
leptosepala 372 
tinctoria 371 
Inula 457 
divaricata 380 
ericoides 434 
falcata 373 
gossypina 373 
graminifolia 373 
Helenium 457 
mariana 374 
subaxillaris 372 
villosa 374 
INULEAE 348 
Iodanthus 2 178 
hesperidoides 178 
pinnatifidus 178 
Tonactis 444 
linariifolius 444 
Ionidium 
lineare 2 564 
polygalaefolium 564 
Ionoxalis 2 431 
violacea 431 
loxylon I 632 
Ipomoea 3 43 
carolina 44 
coccinea 43 
commutata 44 
hederacea 45 
hederaefolia 43 
lacunosa 44 
leptophylla 44 
Nyctelea 67 
pandurata 43 
pes-tigrinis 43 
purpurea 45 
Quamoclit 42 
trichocarpa 44 
Iresine 28 
celesioides 8 
paniculata 8 
TRIDACEAE I 536 
Irio 2 174 
Iris I 536 
aphylla 539 
carolina 539 
caroliniana 537 
cristata © 540 
cuprea 539 
Duerinckii 539 
foliosa 538 
fulva 539 
georgiana 537 
germanica 536-9 
gracilis 539 
hexagona 537 
Hookeri 538 
lacustris 540 
missouriensis 538 
orientalis 540 
prismatica 539 
Pseudacorus 540 
setosacanadensis 538 
verna 541 
versicolor 537 
virginica 537,9 
Isanthus 3 104 
(Trichostema in part) 
brachiatus 104 
coeruleus 104 
Isnardia 2 585 
(Ludwigia in care 
palustris 585 
ISOETACEAE I 50 
TIsoetes I 50 
Braunii 51 
GENERAL INDEX OF LATIN GENERA AND SPECIES. 
Isoetes 
Butleri I 54 
canadensis 53 
Dodgei 53 
Eatoni 53 
echinospora gt 
“ Boottii 51 
muricata SI 
robusta 51 
Engelmanni 53 
“ fontana 53 
“ gracilis 53 
valida 53 
foveolata 52 
“ pleurospora 52 
Gravesii 54 
Harveyi 51 
heterospora 50 
hieroglyphica 51 
lacustris 50 
macraspora 50 
melanopoda 54 
riparia 52 
saccharata 52 
Tuckermani 51 
“ borealis 51 
Isopappus 3 379 
divaricatus 380 
Isopyrum 2 88 
biternatum 89 
thalictroides 88 
trifolium 88 
Isotria I 560 
affinis 561 
verticillata 561 
Itea 2 233 
virginica 233 
ITEACEAE 2 233 
Iva 3 338 
annua 338, 40 
axillaris 339 
ciliata 340 
frutescens 339 
imbricata 339 
oraria 339 
xanthiifolia 340 
Ixia 
acuta I 541 
chinensis 542 
Ixophorus I 164-5 
seeChaetochloa 1 eH 
Jacksonia 
trachysperma 2 199 
Jasione 3 299 
montana 299 
Jatropha ‘ 
stimulosa 2 462 
Jeffersonia 2 129 
Bartonis 129 
binata 129 
diphylla 129 
JUGLANDACEAE I 578 
Juglans I 578 
alba 582 
cinerea 579 
nigra $79 
regia 578 
tomentosa 582 
see Hicoria 1 580-3 
JUNCACEAE I 465 
Juncoides I 482 
(Luzula) 
arcticum 484 
bulbosum 485 
campestre 484-5 
carolinae 483 
confusa 484 
hyperboreum 484 
nemorosum 483 
nivale 484 
Vo. III. 
Juncoides 
parviflorum 1 483 
pilosum 483 
spicatum 484 
Juncus I 465 
acuminatus 481-2 
“robustus 482 
acutus 465 
alpinus 478 
“insignis 478 
aristulatus 473 
articulatus 477 
asper 479 
balticus 468 
biglumis 475 
brachycarpus 479 
brachycephalus 480 
brevicaudatus 481 
bufonius 469 
bulbosus 477 
caesariensis 479 
campestris 485 
canadensis 480 
“ coarctatus 481 
castaneus 475 
compressus 470 
conglomeratus 467 
debilis 481 
dichotomus 472 
“platyphyllus 470 
diffusissimus 482 
Dudleyi 470 
effusus 467 
Engelmanni 479 
filiformis 467 
Gerardi 223, 470 
Greenei 472 
gymnocarpus 468 
interior 471 
Leersii I 467 
longistylis 474 
maritimus 469 
marginatus 473 
“ biflorus 473 
* “ paucicapitatus 473 
“ setosus 474 
megacephalus 480 
militaris Az? 
monostichus 470 
nemorosus 483 
nodatus 482 
nodosus I 478 
“megacephalus 478 
oronensis 472 
parviflorus 483 
pelocarpus 476 
“ subtilis 476 
pilosus 82-3 
polycephalus 479 
repens 474 
Richardsonianus 478 
robustus 482 
Roemerianus 468 
scirpoides 480 
secundus 471 
setaceus 473 
setosus 474 
Smithii 468 
spicatus 484 
stygius 475 
“americanus 475 
subtilis 476 
tenuis 470-1 
Torreyi 478 
trifidus 469 
triglumis 476 
validus 479 
Vaseyi 471 
Juniperus I 65 
communis 65,6 
“ alpina 66 
