Page 
Tuncus tenuis.......----eeseeeceweeeeecee 446 
xiphioides montanus....-------- 447 
Juniper ...-.. 2-2-2 eee eee eee cree cess 555 
Juniperus. ..--.-----eee ee ence ere rescence 555 
JUssivea . cee c eee e ee eee ee eee eee ee eemercees 113 
Justicia... .. 2... eee eee ween een cee eens 324 
Kaffir corn .--.-----+-----e2-- seers aatsace 494 
Kallstreemia.....------+---+--- gee eceneees 49 
Karwinskia.--.------+-e es eeeeeecceecnnee 59 
Keerlia. ...--------e--e creer crete 192 
Kidney bean. -----.2+-+----22e2- rere 89 
King-nut. ....--+----esereeec ere crrcrrrees 411 
Kinnikinnik ---.--------------0 sense 150 
Knackaway «---------------2erercrertte 283 
Knotweed ...-------------- 25sec terest 375 
Knotwort family .--------------+ +0200 08+ 356 
Koeberlinia.....----------e er erercrecrcte 55 
Koeleria..----------2eercr cert 544 
Krameria ..-..-------- 222 seer reeset 27 
Krigia .----.--eeeeeeee reece 246 
Krynitazkia....-------+-seeee2 seer errr 286 | 
Kuhnia ..---.0--e-eee eee eer errr 180 
Kyllinga .....-2seeeeeee sree rere terres 466 
LABIATAS .-- ee eee cece eee rere eters: 330 
Lachnostoma, ...0---2e2 22sec ere eerree teeee 270 
Lactuca....------e- eee eee ceteris 249 
Ladie’s tresses -...-2+---- 222 e eee e renee 424 
Lady’s thumb ....-------++-ee-- sete rere ee 377 
Lagemaria.--.--eseeeess sees eres cecsecenes 123 
Lamb lettuce. .-....---------+-s2ere cere 163 
Lamb's quarters ..--.--+------+--+-98eee+ 367 
Lantana. ..------------- ee eee errr eeeeees 329 
Laphamia.....-----+- +--+ eee re rere cere 226 
1 243 
Large mesquit ..---+-----++--- +--+ eee eee 532 
Larkspur ..----2.-eere eee eee reer erste 9 
Larrea .. 22 eee eee ee eee eee ee reer reer 49 
Lathyrus...---.-----2 +2522 eeter ccc rere 87 
Laurel family ---.------------------e-r8e: 382 
TLAURINEE ..---- eee ee eee eee nee ee ee 382 
a eee 383 
Leadwort family. -....--.---------+---+--- 254 
Leaf-cup ..-.------- eee terre cree erect eee 204 
Leather flowers. ...------------------+--- qT 
Leatherwood......---------------+-e98 +: 383 
Lechea ...-.----e eee eee ee eee errr 24 
SI ee ee 512 
LEGUMINOSER. ....--------- 2202-22 e eee ee 68 
Lemna ....------ eee eee tree creer rere 453 
LEMNACEM...------- eee ee eee ener eee ee eee 453 
LENTIBULARIEAB. 2... 022 e ee eee ee eee ee ee eee 317 
Leonotis ...-....-------- +s eee eee weeeeee 343 
Lepachys .------++++++2seee ener recesses 215 
DLepianes ....----eee cece cece cece cree cesses 23 
DLepidanthu8...------+--0eeeeeeeeee eee ceee 396 
Lepidium .....-.0ee-eeeeee eens ener ee eeeee 20 
Lepigonum......--------sseeeeeeeee rere 30 
Leptocaulis . --.-----20+ee--- 2 ee eee eee eee 147 
Leptochloa. ....-----+2eee seer eee ree eee eee * 5384 
Leptochloa .--.2.0--- 20sec eens eceeeceeceee 541, 542 
Leptoglossis ......------+-++-eeeec ene ees > 304 
Leptopoda...... cece eee e cece ce eceanreaee * 232 
Lepturus ..--..e00s eecewcccee coos eserese . 529 
Lepuropetalon .....-2.-----0----eee5-- wee 
DLesourdia ...-.- eae meee eee nc sence eseaseen 
Lespedeza.... 1.222022. +e eee ee enon eee eenee 
Lesquerella ......--.--.- 222s ee eeee ene e ees 
Lettuce .... 202-2 eee ee eee eee eee eens 
TLeucaenn ... 2. eee cee eee eee eee ccc cewee 
LeucampyX .--..---- ee eee ee eee eee wewee oe 
Leucophyllum ........ cn eee e eee nee eeeee 
Lever wood . 22... 2... eee eee eee e ee ewecee 
Liatris . 2... 222... 22. ee eee eee eee eee 
Lignum-vite tree .......----------- eee eee 
LILIACES 222 - eeee eeeee ee eee ee eeeene 
Lily family.....----.---------------+ eves 
Limnanthemum. ....-------- see eee eee eee 
Limnobium .........--------- eee ee eee eee 
Limnodea. .....-..2..-----. eee eee eee os. 
Timodorum .......----- 2-222 eee cece eee ose 
Limonillo ..........--------- eee eee eee eens 
Linden family.........--------seeeeee eee 
Tinderd,. 2... cewe ce eee n ene eww eceeee 
Lindheimera .......--.-.2--.22+0e-20- eeee 
TAN08YTIS . 2-2 e en eee eee eee ee eee ee eee 
Linum ......--2-- 22 - ee ee ee eee eee 
Tipochettt .. 2.2.2 +2222 eee eee e ee eee eee 
Lippia .....-..2---- 2-2 e eee eee eee eee 
Liquorice .....-- 0-5. eee ee eee eee eee ee 
Lithospermum .....-.-.--------e0see8 eee 
Live oak ......---- 2-2 ee eee eee ee eee eee 
Loasa family.........----+-----------e0e-- 
5 0), \.) 9: 0 eee 
Lobelia .........- +e 222 eee ee eee e ee ee eee 
ye es 
Lobelia family ..-.-..-----s+e0eeeeeeeeeee 
LOBELIACEE ....- 020-2. e eee eee e ee cee eee 
Loeflingia ......-------- +e eee eee eee eeeeee 
TLoeselia ......-2-.---+++-+---- 
LOGANIACEAE. ...--.---- 
Logania family . -------.---+---22eeeseeeee 
Logwood. ....--- 2-0. 2-2 eee een cere ee eee 
Lolium. .--..- +--+ 22-2 ee ee eee eee e ence eens 
Long-leaved pine .-...--+++-+sereereeeeee 
Long M088 ..------------+- 22sec e eee ee eeee 
Lonicera.......eeee ee eee eee eee eee eens 
Lophanthus. .....-------+-++-----e0+---+- 
LORANTHACE..---- wee e cee ence eeeeeeeee 
Loose-strife....--.------ eee eee ee eee ees 
Loose-strife family .......---------eee-ee 
Lote bush....-..---------------e2 +e eee ee 
Low bush blackberry....-.---------+---+- 
Dowellia ...-2..22-2 cence eee cece ween 
Lucerne....---- Boece c cece sense eeereeccece 
Ludwigia ..2....22--2- eee eee ee eee eee . 
Lupine. ...---.----- ++ eee eee eee eee ee eee - 
Lupinus .. 22.00.22 ee eee eee eee ee eee 
Luaula. 2.2.22. eee ee cee eee eee ee eee ee 
Lycium ......---- -- 2265 - eee eee eee rene - 
Tycium «2.2.20 0- 22 eee cece eee ces ee eee eees 
Lycopersicum.....------+-+eeesseeee sees: 
Drycopodiwum. ...ceeeeeeecccecccee eeceeeees 
206 
188 
328 
416 
252 
250 
554 
558 
