378 PROCEEDINGS: BOSTON SOCIETY NATURAL HISTORY. 



Polypodium, 196, 363 

 Polypody, 196 

 Polystichum, 191, 196 

 Pond Lily, White, 265 



Yellow, 266 

 Pondweed, 205 

 Pondweed Family, 205 

 Pontederia, 238 " 



PONTEDERIACEAE, 238, 357 



Poplar, 249 



Balsam, 250 



Lombardy, 250 



Necklace^ 250 



White, 249 

 Poppy, 272 



Common, 272 



Corn, 272 



Field, 272 

 Poppy Family, 271 

 Populus, 187,191,249, 356 

 Portulaca, 265 



PORTULACACEAE, 265, 358 



Potamogeton, 178, 181, 182, 191, 205, 



354 

 Potentilla, 179, 188, 192, 283, 361, 362 

 Prenanthes, 192, 346, 356 

 Prickly Ash, 294 

 Primrose, Evening, 305 

 Primrose Family, 314 

 Primulaceae, 314, 359 

 Prince's Feather, 259 



Pine, 310 

 Privet, 315 

 Proserpinaca, 306 

 Prunella, 180, 322 

 Primus, 192, 284, 353 

 Psedera, 187, 188, 298 

 Ptelea, 293, 353 

 Pteretis, 186, 196 

 Pteridium, 197 

 Pteris, 197 

 Pulse Family, 288 

 Pumpkin, 333 

 Purslane, 265 



Common, 265 



Water, 305 

 Purslane Family, 265 

 Pusley, 265 



Pycnanthemum, 323, 356, 362 

 Pyrola, 180, 187, 191, 312 



One-flowered, 311 

 Pyrus, 188, 191, 285, 353 



Queen-of-the-Meadow, 282 

 Queen-of-the-Prairie, 282 

 Quercus, 182, 187, 188, 191, 254 

 Quillwort, 202 

 Quillwort Family, 202 



Radicula, 186, 275, 355 

 Radish, 276 



Horse, 276 



Wild, 276 

 Ragged Robin, 263 

 Ragweed, 335 

 Ragwort, 347 



Golden, 347 

 Ranunculaceae, 266, 358 

 Ranunculus, 187, 190, 191, 268 

 Rape, 274 

 Raphanus, 276 

 Raspberry, 190, 286 



Black, 287 



Dwarf, 287 



Purple Flowering, 287 



Red, 286 

 Ratibida, 346 

 Rattle-box, 264, 289 

 Rattlesnake Fern, 200 

 Rattlesnake-root, 346 

 Rattlesnake-weed, 344 

 Razotimof.sk i/a, 257 

 Red Top, 209 

 Red-root, 298 

 Reed, 221 

 Reseda, 276, 353 

 Resedaceae, 276, 358 

 Rhamnaceae, 298, 358 

 Rhamnus, 188. 298 

 Rhaphanus, 353 

 Rhododendron, 192, 312, 355 

 Rhodora, 355 

 Rhus, 188, 295, 355 

 Rhyncospora, 188, 233 

 Rib Grass, 329 



Ribes, 187, 188, 191, 278, 355 

 Rice, Mountain, 217 

 Richweed, 256, 320 

 Robert if lie. 293 

 Robinia, 291 

 Robin's Plantain, 341 

 Rock Cress, 272 

 Rocket, 275 

 Rockrose, 300 

 Rockrose Family, 300 

 Rosa, 179, 285, 353 

 Rosaceae, 279, 358 

 Rose, 285 



Cinnamon, 286 



Chmbing, 286 



Prairie, 286 



Scotch, 286 



Swamp, 286 

 Rose Family, 279 

 Rosemary, Bog, 309 

 RuBiACEAE, 329, 359 

 Rubus, 188, 190, 192, 286, 355 



