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Macrocalyx ...... Sencsessecsseass Sens calsiesis 514 
MONONA. 255 dino nw seen eiaiem en oe wie em cislaet c:0, 6 483 
Matanthemum ..cccccccncnccccvcucvcccccces 525 
Malva.........206 Sebeut sce Ueescivebewecee ss 489 
Malve0psis so.denc2seoeieee cee ede ceeslee ss 489 
Mamillaria.....-.00 Delete detanseceuceeeesls 601 
Men thia tooo tooo s. ates curses orne cisco se 518 
Men tZeliaw ccc soci lce acct beeueeeteectans 501 
Moertensidiccse. neni besos si eoce kane elle: 515, 516 
Mimulase.:2.0..5cce6cecewstie cL awesteese 517, 518 
Monardaveiis. 2.2 catweteosedsnlocbewdsbued 519 
Monolepis .........000..ececcce ee eseeeecees 520 
Muhblenbergia...... 2.0. ..22 cece eeeeeeweueee 530 
MUsenium . 22... ecccancccccccccccccucccucns 501 
Mya grunt o250cececkask hecacce'csclteiecta ass 486 
Myosotis 0... ccc cece ce eee cece cece ee enee 614, 515 
Myriopterts 2... .cc ec nc ene cece eceecnnenees 535 
Naumborgia ......0.00..0ccceecnceseurenees 513 
Neti. tah cee Mowtetntee cau eelawewed 495 
Nymphea...... 020222 ecco ee neceeceecerees 484 
Cnothera ...... dances tute eee Beene ee 500 
Onoclea ... 2.2 enc nee c ecw ene cacccccceeee 536 
Onosmodium...... ccccecececeeseencewececs 516 
Opulaster ... 2... e eee eee ween e eens 495 
Ophrys 22.0... 2 eee cece nce e ee cece enenee 524 
Opuntias.c.. jecee se tle shee eeced ee elena ve 501 
OFchts: doe c320 Joo boeek kn ccnceceneucakdeess 524 
Oreocarya. 2.0.0.2. eee ee cee cen cecccvees 515 
Orobanche ....... 0... ce enc ccc cccccccrcacce 518 
Orthocarpus .....-.-.- sc cccececececcccences 518 
Oryzopsis .... 0.22... eee ecacececcccecces: 529 
Osmorrhiza ...... ccc. cece cus cceneccucceuce 502 
Osmunda .....cc.0. cence eee e cece ce eccnuce 536 
OSU 8 decetseucccecissccuedettwenvesusete 523 
ONAN s eos sais Sos ousiccwcen cedeutanecens 489 
Orytropis . o.oo ccccecee cecec eee ecenccenee 498, 494 
Panicularia ..........0--cccececnenccceceees 532 
Panicum ........00.0c0ccecccccccccacceccees 528 
Pariotaria..... 2.2... cececcecacecccccccces 522 
Parnassia .........-c0cceleccccccccccees woes 498 
Paronychia .......0..ccesecceseceececececes 488 
Parosela 2.2.2... cccccaccacceccccccccceceee 491 
Parthenocissus Sua sation eelen de ccanraes ae 490 
Pastinaca..........cccececeee nesiadexis --. 502 
Pella... ... cece cccucucccccee. cecceace 535 
Pentstemon ..........sceccecseeceseecees ee. 517 
Peramium ..........2csccecee ceececeeeeeee 524 
Petasites . oo... ccc cc cccccoescenenceceeus 509 
Peucedanum .........---ccccceccesececceees 502 
PACA. 0... occ cccneecccccaces eevee ss 492, 493 
Phalaris ... 20.0.0... o.oo ooo ccc ecccnncee 528, 529 
Phegopteris eee Somes cudocuuectecceucee 535 
Phleum ........... sooudauaieinsabecasee wees 529 
131, cee etree ene ene ERE TENE 514 
PNW RANG icisccidcs./acacenwicdusidatvenace ... 516 
Picea... 2.2.2.2... sited acu hy aieoeeiee wees 534 
Pinus ....2.0.00... ie eee een 534 
Plantago......c.cccccecececseccccceceeecess 519 
Poa... i... Dees et ee vecagiced 531, 532 
Polanigia ........ Tener pert pe anna 436 
Polygala......... spatedetauene aac increas 487 
olygonatum ...... Uleeeecccawtscscaseetoas 525 
Polyonum.......cscsececeeeceeceeseeeseees 521 
POO tai aciceoaushe cues eeueac asaens 518 
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Populus..... cane mevcccveccrccseaascccscenss 523 
Potawogeton.....cccccecccscescccecccencces 526 
Poteiitilla.. oc sess dedei deeb tency eka sn 496, 497 
Prenanthes: s2sce2s seldees sceceteste cde. dese 511 
ProsQrte$ ii. tec iscweeediecet ds cides cece 525 
Prunella 22. .iccsiiesse 2 che sedosee ve secsas 519 
PYUNUS scsi vevsesee sik ccdeteseededees ieee 494, 495 
Psoralea covecscFscecee Pls loses acca dewess 491 
IPteris. 2: 22ceces os vetcs lc ocouete caus ssesae 535 
PLCLOSPOPAS See occa ciectewecteniencetecseds 512 
Ptilepidats.2- 2oscceesscws oot o beer eects: 509 
Pulm onaria.....cceees ebecessedetScewcees 615,516 
Pulsatilla seceded ckavscevesceds cess sueses ss 479 
Pytola’.gcccctescesaseces sss Gates essweseecue 512 
QUOICNS i. icicle dearest esse seis 523 
Ranunculus: c2coseccteset owe ced we sete dees 480 
RAUS 220s seu Ri es eeseweess ‘Phe le eek 490 
Ribesiccvcce ssc sdncescccwees seems cecesces 498, 499 
ROPIPA. 2 occ e eee cee w eee ween cece nncecnecoene 485 
OBA Gaieee cs sac ncaa ee wa eican seus eemeud 497 
RWS: .2sacbieecee ido ee edececccedeccceecs 496 
Rudbeckia ......ccce ccc sec ceccecccces oe--- 508 
RiMeNX 2 eset sseceseSeestececas ce eeeees® 521 
Sagittaria .....0-.ecc ence eee ences eoceneees 526 
Salincca.eoccecctee erences ss tices ceeesee nase 523 
Salvia. os icc ce Seeteridtoiee woes cess ieicceess « 519 
Sambucus. ... sence cencce cece ns cence eceeee 503 
Sanictila’sccceccdencciciewicsseectice steseesiece 502 
Saponaria.....2---seeennncecscocseceeoenwee 487 
SalyrtUm .. 2.02 e ewe nnn ne canner cenwwewones 524 
Savastana...... 2... cceeec concer eueesensees 529 
Saxifraga ........cececenecccaceeeccnecsones 498 
Schedonnardus ........---cccecccceee euenw 530 
Scirpus ....-...--+eeee ioceeeSasescewese sie 526, 527 
Scrophularia ......ccceeesccecccee aisiceeewiews §17 
Scutellaria.......cecccccccn scence sence ence 519 
Sedum ........ Eueetiteseectesesesseescees es 499 
Selaginella. ..-.0...----- ene s cee rceseeeeces 534 
Selinwrnr. ...csccccocccvccscccccccwccecessces 508 
Senecio ....cewccccnceencccecece erere cer 509, 510 
Serratula .....cccccccceecsee Seeeeewcssaces 504 
Sesleri ..cccccceccceccccccsccsncsenvceccase 531 
Setaria. .....2- gate lveveeerocdeceleeneceeees 528 
Silene... 2. ne ccc e ee ene cence rocecerece 487, 488 
SinQpts . 2... ccrcwnceeenacccnceenecewereenes 485 
Sisymbrium.....--..--+-seee- baieeaetecssa ee 485 
Sisyrinchium ..--.-.----.+eseee cose ee cee e ee 524 
SitANION... «2. cccennenn nc eer ccone o ceccceoees 533 
SIUM. 00 nce ww ence ne cece nent weerescecrenece 502 
Smilacind ....-ccccceccccrconrncnecercescece 525 
Smilax... 22. eee ee nee ee cece ee ween ee ceneee 525 
LL lance nee e eens ceeeaee 502 
Solanum ....cecccccecces eens c css eeecewsnans 516 
Solidago .....--e--+- eoeeee piecsessccesees 505, 506 
SONChuS.... 00. coc ec cen e ne cece eww erncccene= 511 
SOrbuB . .. cece cewe nec ce esr eeenee ee re ee 498 
Spartina .....--222-- eee en rece eeestceccsee 928 
Spiesia...-.-----esceeeeeeeeecee weereecees 493, 494 
Spirwea ..--.--cee-eeeeeee sisieeee steeds eens 495 
Spiranthes .....--.cccecceececeeccrrecsecces 584 
Sporobolus. ....-----eececeserc er cececernees 530 
Stachys .....--e0sccencecereccecesenereseeee 519 
Stanleya .....cccceecscecscccceereccrccreees S84 
513 
Steironeinad......cceccvccccccccccsecncsccssces 
Stellaria .-ccccccccccovecsccceneccccsceccees 4598 
