INDEX 



389 



Rattlesnake 321, 318:4 



Water 300 

 Plantain Family 92, 112: 



1-6 

 Platyschkuria 287 

 Pleurogyne 97 

 Plum 165 

 Plum Family 165, 160:13- 



15 

 Poa 359, 330:21 

 Poaceae 335, 330:18-30; 



342:i-35 



Poales 324 



Poison Ivy 220, 218:3 

 Polanisia 15 

 Polemoniaceae 103, 106: 



3, 5-7; 112:2-6 

 Polemoniales 103 

 Polemonium 107, 106:3, 



5-7 

 Polygala 30 

 Polygalaceae 30 

 Polygonaceae 51, 44:4, 5, 



8; 54:17, 18 

 Polygonatum 309 

 Polygonum 56, 44:4; 54: 



17 



amphibium 56 

 aviculare 57 

 bistorta 56, 54:17 

 convolvulus 57 

 Douglasi 58 

 emersum 56 

 erectum 57 

 exsertum 57 

 hydropiper 57 

 hydropiperoides 57 

 lapathifolium 57 

 pennsilvanicum 57, 

 44:4 



persicaria 57 

 polygaloides 58 

 punctatum 57 

 ramosissimum 58 

 scandens 57 

 spergulariforme 58 

 tenue 58 

 viviparum 56 

 Watsoni 58 



Polypogon 360 

 Polypterus 287 

 Pond Lily, Yellow 9 

 Pondweed 302, 322:1 

 Pondvveed Family 301, 



322:1 

 Pontederiaceae 314 

 Poplar 72, 70:1-6 



Balsam 70:6 

 Poppy 12 



Prickly 12 

 Poppy Mallow 31, 38:8 

 Poppy Family 9 

 Populus 72, 70:1-6 

 Portulaca ^50 

 Portulacaceae 48, 54:11- 



Potamogeton 302, 322:1 

 Potentilla 158, 154:2 

 Potato Family no, 106: 



1, 4; 112:15 

 Prairie Clover 184, 166:3 

 Prenanthella 289 

 Prenanthes 289 

 Prickly Pear 208, 204:6 

 Prickly Poppy 12 

 Primrose 91, 90:1, 3, 6 



Evening 205, 204:4 

 Primrose Family 88, 90: 



1-9 

 Primrose Order 88 

 Primula 91, 90: 1, 3, 6 

 Primulaceae 88, 90:1-9 

 Primulales 88 

 Prunaceae 165, 160:13-15 

 Prunella 149, 146:2 

 Prunus 165, 160:13-15 

 Pseudocymopterus 235, 



232:23, 24; 240:7 

 Pseudotsuga 368, 366:10 

 Psilostrophe 289 

 Psoralea 185, 172:4 

 Ptelea 40, 10:5 

 Pterospora 82, 80:8 

 Pteryxia 235 

 Ptilocalais 289 

 Ptiloria 290 

 Puccinellia 360 

 Puccoon 122, 120:3 



Pulsatilla 6, 4:5 

 Pumpkin, Wild 210 

 Purple Aster 284, 260:4 

 Purple Ground-cherry 



115, 106:1 

 Purshia 162, 160:6 

 Purslane 50 



Sea 51 

 Purslane Family 48, 54: 



n-14 



Qua^k Grass 340, 342:26, 



27 

 Quamasia 310 

 Quamoclidion 72 

 Quercus 221, 218:10-12 

 Quincula 115, 106:1 



Radish 26 

 Ragweed 253 

 Ranales 1 

 Ranunculaceae 1, PI. 1:1- 



4; 4:1-3, 5, 6 

 Ranunculus 6, 4:3, 6 



abortivus 7 



acriformis 7 



adoneus 7 



affinis 7 



aquatilis 8 



cymbalaria 6, 4: 3 



Douglasii 7 



ellipticus 6 



eximeus 7 



flammula 6 



Macauleyi 6, 4:6 



Macounii 8 



maximus 7 



multifidus 7 



natans 7 



nivalis 7 



ovalis 7 



pennsilvanicus 8 



Purshii 7 



ranunculinus 8 



sceleratus 7 

 Raphanus 26, 22:36 

 Raspberry 162, 160:3 

 Ratibida 290, 272:1, 6 

 Rattle-box 138 



