INDEX 



Potentilla Anserina, 174, 463, 



507- 



argentea, 172, 475. 



arguta, 172, 475, 5<>7- 



canadensis, 174, 475, 504. 



fruticosa, 174, 475, 507. 



monspeliensis, 172, 475, 504. 



palustris, 312, 463, 507. 



recta, 172. 

 Poverty Grass, 430, 467, 504. 

 Prairie, Queen of the 260. 



Rose, 440. 



Willow, 377, 474. 

 Prenanthes alba, 146, 497, 515. 



altissima, 146, 497, 515. 



serpentaria, 146, 370, 478, 



517. 



Prickly Gooseberry, 384, 489. 



Pear, 194, 490, 508. 

 Primrose, Common Evening 195, 



476. 

 Primrose-leaved Violet, 96, 467. 

 Prince's Feather, 252, 483. 



Pine, 274, 490, 513. 

 Privet, 418. 



Andromeda, 413. 



Swamp 431, 459. 

 Proserpinaca palustris, 35, 459, 



470. 

 Prunella vulgaris, 337, 477, 510. 

 Prunus americana, 400, 458. 



angustifolia, 400, 475. 



instititia, 400, 475. 



maritima, 400, 467. 



pumila, 401, 467, 479, 501. 



serotina, 401. 



virginiana, 401, 489. 

 Psedera quinquefolia, 390, 490. 

 Ptelea trifoliata, 401, 484, 508. 

 Ptilimnium capillaceum, 102, 464, 



509. 

 Puccoon, Yellow 74, 495. 

 Pulse Family, 8. 

 Purple Aster, Late 359. 



Avens, 312, 463, 472. 



Azalea, 441, 464. 



Bladderwort, 350, 470. 



Cinquefoil, 312. 



Clematis, 308, 488, 503. 



Cudweed, 143, 468. 



Flowering Raspberry, 437, 

 475- 



Purple. — Continued. 



Fringed Orchis, Large 303, 

 471. 



Fringed Orchis, Small, 246. 



Gerardia, 289, 467. 



Loosestrife, 508. 



Milkweed, 328, 509. 



Virgin's Bower, 450. 

 Purple-leaved Willow Herb, 273, 



472. 

 Purple-stem Aster, 364, 465. 

 Purplish Meadow Rue, 307, 472. 

 Purse, Shepherd's 79, 483. 

 Purslane, 162, 483. 



Milk 265, 476. 



Sea 307, 466, 511. 



Speedwell, 127. 



Water 271. 

 Pussy Willow, 378. 

 Putty-root, 305, 372, 494. 

 Pycnanthemum flexuosum, 342, 



492, 513- 

 incanum, 342, 492, 513. 

 muticum, 342, 492, 513. 

 Torrei, 342, 492, 513. 

 virginianum, 342, 492, 513. 

 Pyrola americana, no, 490, 509. 

 elliptica, no, 490, 509. 

 One-flowered 108, 276, 496, 



509. 

 Pyrus arbutifolia, 395, 463, 501. 

 Pyxidanthera barbulata, 114, 278, 



49i, 5oi. 

 Pyxie, 114, 278, 491, 501. 



Q 



Quaker Lady, 395. 



Quarters, Lamb's 28. 



Queen of the Prairie, 260, 475, 



507. 

 Queen's Lace, 108. 

 Quercus ilicifolia, 382, 479. 

 prinoides, 382. 



Rabbit-foot Clover, 313, 475. 

 Racemed Milkwort, 264. 

 Radicula Nasturtium-aquatica, 



79, 463- 

 palustris, 171, 463. 



35 



543 



