Highwater-shrub .........-. 
Hilaria.............----.02-2----2055 wceees 
Hoary pea 
Hoffmanseg gia. .....-... 222.2. cseeweeee . 
sete ee eseeeee 
eee ee ee eee eee eee eee eee 
Holly .....- 2.2. 20.---- 25-22 ee eee cee 
Holly family 
Holodiscus...........22..2-22. 022 2eceeeee 
Honewort...-.. 2-20... 2222-2 eee en eeeee 
Honey-locust ........-.--..--.-+8 aaecsecs 
Honeysuckle. ........-.----------++--0-- . 
Honeysuckle family ........--..-......-- 
hornbeam ..............00.-.0008 ease 
TOG 2 eee see ee eee cece ee eee eseeee 
Hordeum ........---.-----2-- eee eee -- 
Horehound 
Hornbeam 
Horned pond-weed.......-.....-.-------- 
Hornwort.......-------..- eee cece een eee 
Hornwort family 
Horse brier 
a ee eee rere errr err ers 
i ee es 
ee ee ee ee 
ee ee ee ee 
ee ee ee ay 
Hosackia .........-----22 202-2222 20s eee eee 
Houstonia 
Houttuynia 
Huajillo 
Huisache 
Humulus 
Hyacinth 
HYDROCHARIDES ....-.-.......-2-----0-- 
Hydrocotyle 
Hydrolea ..........--. 
HYYDROPHYLLACE. .....22..20002 22000 -e 
Hygrophila 
Hymenatherum 
Hymenoclea 
Hymenopappus...-...-...2---222-2.2.20. 
Hymenothrix 
HYPERICINEA... 2-2-0... 0 2-2 eee ence 
ee eee 
Se 
we ee eee ee eee ee ee eee 
Bee ee ee ee eee eee ewes 
ee eee ee eee tem eee e reece ee ce ccass 
ee 
ILLECEBRACEAS .........0. 002000 e eee eee 
Tllecebrum. ............2.2------ see eeeeee 
Thysanthes........-...0.2 2 ceed ween eines 
Imperata 
en 
578 
Page. 
208 
497 
80 
92 
210 
494 
56 
56 
104 
511 
147 
94 
156 
155 
406 
413 
54 
549 
334, 343 
413 
457 
420 | 
420 
432 
65 
339 
298 
509 
198 
56 
356 
361 
156 
254 
Indian plantain. .........2...--..ceeeeeee 242 
turnip.........-...222----2 ee “seeee 453 
Indigo -.....- 2.0... eee e eee eee ee eee ee 80 
Indigofera ...--. 00. .0e--cee cence neenene 80 
Tonidium ...... 20.2.0. cece eee e eee e een eee 25 
Toxylon......... 2.2. c eee eee eee eee ees 408 
Tpomoa...-.....---2--2- eee eee eee eee eee 289 
Tr@Sin€ .. 2... cece ecw eee eee cence ences 363 
IRIDER .....-2--2 022222 eee eee eee eee 426 
Tris family.........2.. 2222-22 e eee eee 426 
Tron oak ....-- 2.20... 2 eee eee eee ee eens 414 
Tronweed ..........0. 000002 - eee e eee e ewes 175 
Tronwood ........ 20-222 ee eee eee eee eens 257, 413 
Isanthus.... 22.0200. .0.022 222 e eee eee eee 332 
Tsch@mum.....-......-0----0.-00-seeneee 511 
Isocarpha. .-..- 2.2.02 s.ee cece ee eeen eee eee 213 
ISOETACEAS . 22.2.0. cee ee eee ene e ene eee e nee 553 
Tsoetes. 2.2.2... cece e cence eee cee eee c anes 558 
Italian millet......-.-.-....200000222222. 510 
Iva 2.22.2 ee eee 208 
IVY . occ cece eee eee cece eee e eee ee sees 63 
| 6 Fe 428 
Jacob's staff .........0...0.2. 000222 33 
| Jacquemontia...--. 22.22.22... cee lee 9299 
Janapha .....-.2-..2-0200 0222... e eee eee 401 
Janusia.... 2... eee eee eee ee eee 48 
Jassamine ......2 22 eee cece eee wee eee 271 
Jatropha. .... 2.2... 22 20 - ceee ee eee eee eens 396 
Jerusalem Corn ..........2..-0-2-0eeeeeee 494 
ee 368 
Joe-Pye weed. .... 22.2... eee. ce eee cece eee 177 
Johnson grass ............2-0ce cece eee 494 
Joint grass ...... 22-22. ee eee eee eee ee 499 
Judas tree... 0 eee eee eee eee ce ee eee 91 
JUGLANDEAD. 2.20 e cece cece eeenn cen cneenes 410 
Juglans. ........-- 2.22 ee ee eee eee een ee 411 
TUQUUNS. 62 eee eee eee eee eee ees 410 
JUNCACEAS «0222 e cece eee ene e nee eee nee 444 
JUNCO..- 22 e ee ee eee eee 55 
Juncoides. .. 2.2.22 ee eee eee 451 
JUNCUS 2.06. eee ee eee eee ee ee 444 
acuminatus robustus............ 449 
aristulatus 2... .2222.e00--202ee 450 
brachycarpus ...........----..-- 448 
bufonius .............-..2-.2.24. 446 
COMPCSLTI8 0... eee eee eee wees 451 
crassifolius ...........2......02. 448 
dichotomus ..........---.---e00- 446 
diffusissimus..............ceeeee 449 
effusus 22.22... ee eee ee eee ween . 447 
Elliottii ...........00...2..000004 450 
Engelmanni.......-............. 447 
filipendulus ...........2.2..00.22. 451 
leptocaulis...........----..- neeee 451 
marginatus aristulatus.......... 450 
biflorus........c..05 . 450 
setosus...........22. 451 
nodosus Junci ............-..... 449 
megacephalus.......... 448 
polycephalus crassifolius ........ 448 
TEPONS ......- 2-2 ee eee eaeeeee oes. 450 
Roemerianus .............-2.-0-. 447 
scirpoides ........2--2 22-2 e ene 448 
SOtaACOUS.......0 cee ee eee ee eweee 446 
