808 



METASPEKMAE OF THE MINNESOTA VALLEY. 



Polygonum erectvm Linn 208 



Polygonum fllifortne Bart — 208 



geniculatum Poir 209 



glandulosum Poir 205 



rolygonum hartivriyhtii Gray. . 206 



hydropi'per Linn 205 



Polygonum hydropiperMiCHX. 205 

 Polygonum hydropiperoides 



MiCHX 205 



Polygonum hydropiperoides 



PURPH 205 



Polygonum incarnatum Ell 207 



Polygonum lapathifolium var. 

 incarnatum Wats, and 



COULT 207 



llnifoliunii MunL 208 



mite Ell 205 



mite PURSH 205 



muhlenbergii S. Wats.. 206 



muticum Moench 209 



nodosum var. incarna- 

 tum Gray 207 



Polygonum joensylvanicum Linn. 207 



Polygonum persoonii Engelm. 205 



provinciale Kocii 209 



punctatumELL 205 



purpureum Gilib 206 



Polygonum ramosissi m u m 



Micnx 208 



sagittatum Linn 210 



Polygonum sagittatum var. 



boreale Meisn 210 



scabrum MoENcn 207 



Polygonum scandens Linn 210 



tenue Micnx 208 



Polygonum terrestre BSP 206 



Polygonum virg'mianum Linn . . 209 



POLYNOME SALISB 1 60 



Polypogon setosus Spreng — 60 



Polymnia Baill 531 



Polymuia IjINN 531 



canadensis Linn , 531 



Polymnia canadensis var. dis- 



coideaGRAY 531 



J^olymniastrum Lam 531 



Polydon HBK 70 



Polyotus NUTT 423 



lietcrophylhis N litt 423 



Polypogon glomeratus Willd 60 



racemosus Nutt 60 



Polypremnm Adans 492 



Pol'yporis Less 548 



Polystign)a Meissn 350 



Polytaenia DC 389 



~ — nuttallU DC 389 



Pomacea(! Kndl 281 



Ponceletia Tiior 69 



Ponerorchis Rek ii. f 165 



J'ontederia LiNN 137 



PontederiaangustifoliaPuRsii 1.37 



Pontederia cordata Li nn 137 



I^inledcria mucroiiata Raf... 1.37 



l*oiit<Ml<'riare}i«' 137 



J'opiilago TouitN 2.30 



Popidophyllum ,. 179 



Populus Linn 179 



Populus atheniensis Hort 181 



angulata Ait 179 



angulosa Micnx 180 



Populus balsamif era Linn 180 



Populus balsamifera var. gen- 



uina Wesm 180 



balsamifera lanceolata 



Marsh 180 



canadensis Micnx. f . . . 180 



candicans Ait 180 



Populus grandidentata MiCHX . . 180 

 Populus grandidentata var. 



pendula Torr 180 



laevigata Ait 179 



macrophylla Lodd 180 



Populus monilifera Ait 179 



Populus tacamahaca Mill 180 



tremuliforrais E3i 181 



Populus tremuloides MiCHX... 181 



Populus trepida Willd 181 



viminea Bon J80 



Porphyroscias MiQ 391 



Porroterantlie Steud 80 



Porrum Salisb 147 



Portidaca Linn 219 



retusa Engelm. and 



Gray 219 



Portulacaceae 217 



Portuna Nutt 406 



Potamogeton Linn 33 



Polamogeton acuminatus 



ScniTM 38 



acuminatus Waul 38 



acutifolius Pr 36 



Potamogeton a m p I if o I imi s 



TUCKM . 35 



Potamogeton angusti f o 1 i u s 



Op 30 



berchthold i i Fieb 36 



caudatus Seid 38 



complanatus Willd 39 



compressus Auct 39 



compressus Sm 37 



cornutus Pi: 38 



crispus Darl 35 



cuspidatus Sciirad 39 



fasciculatus Wolkg — 37 



fllicaulis Sciiuu 37 



Iloxicaule Detii 38 



llexuosus SciiL. and 



Wred 38 



Polamogeton ftuU((n.< Roth 34 



• foliosHs Uav 39 



Potaiiiogeton trii'sii Rupi: 37 



graniiiit'iis Mer 36 



gramineiis Roth 35 



gramineus var. lietere- 



phyllos Fkies 35 



Potamogeton gr(nni)ieus var. zizii 



"(ROTII) 36 



Iieterophyllos SCHREli 35 



