804 METASPERMAE OF THE MINNESOTA VALLEY. 
Panicum multiflorum Porr... 
—muriatum MICHX....... 
—nitidum LAmM........... 
Panicum nudum WALT.......+ 
Panicum pauciflorum ELL.... 
—pubescens LAM......... 
—ramulosum MICHX...... 
—rectum R. and §8........ 
Panicum scoparium LAM ...... 
Panicum strictum PURSH..... 
—strigosum ELL.......... 
Panicum virgatum LINN......- 
Panicum walteri Porr........ 
—walteri PURSH.......... 
Panicum canthophysum A. 
GRAY. whew ue sepsaisses 
Papaveraceae .............. 
Papilionatae................ 
Papyrus WILLD. .226escneeceus 
Paractaenium BEAUV......... 
Parallosa. ALBR. .3.s064 60 esnas 
Parapodium H. MEy.......... 
Parastranthus G. DON........ 
POTGr id: LON Nise scsi tecctieveniare 
Parietaria debilis var. pennsyl- 
vanica WEDD......... 
Parietaria pensylvanica MUHL. 
Parillax RAP is casas sccccawss oe 
Paritum St. Hib. «366 6s0 occas 
Parnassia LINN....... 200. eee 
Parnassia americana MUHL... 
Parnassia caroliniana MICHX.. 
——glauca RAF............. 
—-grandiflora RAF......... 
— ovata MUHL.... ........ 
Parnassia palustris LINN...... 
Parnassia palustris PURSH.... 
—-repanda RafF............ 
—rotundifolia RAF. ...... 
Paronychieae....... .......... 
Paronychia canadensis Woop. 
—dichotoma FENZL....... 
Parosella Caw neces é acwea eons 
Partheniastrum NISSOL....... 
Parthenice T. and G.......... 
Parthenium LINN.?........... 
—integrifolium LINN....... 
Parthenocissus PLANCH........ 
— quinquefolia (LINN.)..... 
Pasanid OBRST..2 sis ee se os 
Pasania (Sect.) ...020ccscceveee 
Paspalum aristatum MoENcH 
Pastinaca TOURN............+ 
—nudicaulis SPRENG..... 
Patrinia ceratophylla Hook... 
— longifolia MACNAB..... 
Pedicularis LINN...........00- 
Pedicularis aequinoctialis 
EB ingens an assess oon sere 
Pedicularis auriculata SM..... 
Pedicularis canadensis LINN... 
Pedicularis gladiata Micux... 
Pedicularis lanceolata MICHX.. 
Pedicularis pallida PURSH.... 
Pedicularis resupinana PurRsH 471 
—virginica PoIR.......... 471 
Pedilea LINDL.........-..--.. 172 
Pedrosia LOWE..............- 331 
Pelonastes Hook. f..........- 383 
Peltopsis RAF.....-.....0 see. 33 
— perfoliata RAF.......... 35 
Pendea: PLUM. son cds acalccogeae 8 338. 
Penstemon MITCH............. 461 
——acuminatus DoUGL...... 461 
Penstemon albidus NuTT. ... 461 
——bradburii PursH........ 461 
——cristatus MAC........... 461 
——fendleri GRAY.... ..... 461 
Penstemon gracilis NUTT...... 462 
——grandiflorus NUTT...... 461 
——hirsutus (LINN.)......... 462 
Penstemon nitidus DoueL.... 461 
——pubescens SOLAND...... 462 
——pubescens var. gracilis 
PUA bo 2:2 dager nieces 462 
Penstemon teretiflorus NUTT.... 461 
Penstemon viscidulum NEES.. 461 
Pentacalia CASS.............. 554 
Pentacophrys GRAY........... 216 
Pentaglossum FORSK......... 374 
Pentaqgonia SIBG.... 6... eee 496 
— perfoliata (LINN.)....... 496. 
Pentalophus DC.............. 437 
—mandanense DC......... 437 
—longiflorus A. DC....... 437 
Pentameris BEAUV........... 69 
Pentanoma Moc. and SxEss.... 337 
Pentanthus Hoox. and ARN.. 554 
Pentaphylloides TouRN...... 293 
Pentaphiltrum REICH........ 456 
Pentaple REICH.............. 223. 
Pentapteris HALL..... ...... 384 
Pentapterophyllum Diuu..... 384 
Pentastemon WETTST........ 461 
Penthorum LINN........ 0.0006 273 
—sedoides LINN........... 273 
Pentreas RAF.............00585 215 
Pentstemon L’HER........... 461 
Peramibus RAF............... 543 
Peramium SALISB...........55 171 
——pubescens (WILLD.)....... 171 
— repens (LINN.)...... .... 172 
Periballanthus F. and §....... 154 
Pericalia CASS....4.0064 onevece 554 
Pericallis: WEBB: icici dasaceacows 553 
POV aCe BUG aecteccs cana givens 337 
Peristylis BLUME............. 165 
——bracteatus LINDL....... 168 
Peritoma DC... ...... ss detoerde 269 
——integrifolia NuTT....... 270 
— serrulatum DC.......... 270 
Perizomantbus PursH........ 253 
Perrottetia DC............... 319 
PersicariaamphibiaS F.Gray 206 
—~—virginiana GAERTN..... 209 
Personatae DO. ss «ose dovasesce 459 
Perularia LINDL.............. 165 
Petaloma RAF..........c cee 34] 
