496 



INDEX. 



Paliurus Texanus, 403. 

 Pansy, 204. 

 Papaver, 83, 88. 



alpinum, 89. 



Argemone, 88. 



Califoruicum, 88. 



crassifollam, 89. 



dubium, 88. 



heterophil II urn, 89. 



Leminoni, 88, 89. 



microcarpum, 89. 



Dudicaule, 89. 



nudicaule, 89. 



KhcEas, 88. 



somniferum, 88. 

 PAPAVERACE^, 82, 466. 

 Papavere^, 82. 

 Papaw, 62, 63. 

 Papulosa, 261. 

 Paradise-tree, 378. 

 Puritiiim, 337. 



ti/iuceum, 337. 

 Parrasia, 142. 



camporum, 142. 



linearifolia, 142. 

 Parrya, 104, 151. 

 Parriia, 140, 151. 



arctica, 151. 



urenicola, 136. 



inacrocarpa, 151. 



Meuziesii, 152. 



nudicaulis, 152. 

 Parthenocissus, 431. 



quinq lie folia, 431. 



vitucea, 431. 

 PauUinia, 432, 442. 

 Pawa, 446, 447. 



atropiirpurea, 447. 



bicolor, 447. 



Californica, 448. 



carnea, 446. 



discolor, 447. 

 yZnm, 447. 

 /i</m, 447. 



cjlahra, 446. 



hitmilis, 447. 



hybrid a, 447. 



intermedia, 447. 



Lindleyana, 447. 



livida, 447. 



lucida, 447. 



Michau.rii, 447. 



nmtahitis, 447. 



neglecta, 447. 



Ohioensis, 446. 



pallida, 446. < 



rubicunda, 446. 



versicolor, 447. 



VFrr/.son/anrt, 446. 



Willdfiioiriana, 447. 

 Pariaiiajlarii, 447. 

 Pavonia,"297, 331. 



Driimmondii, 332. 



hastata, 331. 



Jonesii, 331. 



lasiopetala, 331. 



LeContii, .331. 



racemosa, 331. 



sjiicata, 331. 



spiuiiex. 331. 

 Virr/inica, 333. 



Wright a, 331. 

 Pearl wort, 247. 

 Peduncidosa, 308. 

 Pegauum, 352, 3.53, 355. 



Ilarmata, 355. 



Mexicanum, 355. 



PELARGONlEiE, 357. 



Pelargouium, 357, 363. 



aiiceps, 363. 

 Penny Cress, 123. 

 Pentagonocarpus, 332. 

 Pentaspermum 



altbecefolium, 333. 



smilaci folium, 333. 

 Peplis Americana, 281. 

 Peppergrass, 124, 126. 

 Pepper-root, 153. 

 Pepper-tree, 381. 

 Pepper-wood, 374. 

 Perfonon ferrugineit m, 418. 



laurifolium, 408. 

 Peritoma, 183. 



aiirea, 184. 



integrifolia, 183. 



serrulatum, 183. 

 Pharnaceum Cerviana, 258. 



maritimum, 260. 

 Pheasant's-eye, 18. 

 Phemeranthus, 266. 



tereti/olius, 266. 

 Philetceria, 280. 

 Phccnicaidis, 152. 



cheiranthoides, 152. 



Menziesii, 152. 

 Pliixnicodelphis, 51. 

 P//(/sa, 258. 



Physaria, 100, 121, 468. 

 Physaria, 116, 118. 



didymocarpa, 121, 468. 



didymocarpa, 468. 



Gey en, 121. 



montanu, 1 17. 



Newberryi, 121, 468. 



Oregona, 121. 

 Physarie^, 100. 

 Physelytron, 442. 

 Picramuia, 377, 379. 



pentandra, 379. 

 PlCRAMNIE^, 377. 

 Picrella, 372. 

 Pigeon Grape, 427. 

 Pine-wood Grape, 428. 

 Pink, 211. 

 Pinweed, 192. 

 Pistacia Mexicann, 381, 386. 



Simarubn, 380. 

 Pislacioides, 386. 

 Pitavia, 375. 



dumosa, 375. 

 Pitcher-plant, 79. 

 Piti/rosperma, 54. 

 Plagiorhegma dubium, 71. 

 P lat y petal uni, 140. 



dubium, 140. 



piirpurascens, 140. 

 Platysperinum, 104, 151. 



scapigerum, 151. 

 Platystemou, 82, 84. 

 Platystemon, 85. 



Californicus, 84. 



Californicus, 84. 



crinitus, 84. 



denticulit/us, 85. 



leiocarpus, 84. 



linearis, 85. 



Oreganus, 85. 



Torreyi, 85. 

 PlatystemonejE, 82. 

 Platystigma, 82, 84. 



Californicum, 85. 



denticulatum, 85. 



lineare, 85. 



Oreganum, 85. 

 Podophyllum, 67, 72. 



callicarpiim, 72. 



diphyllum, 72. 



montanum, 72. 



peltatum, 72. 

 Poison Bay, 59. 



Dogwood, 383. 



Elder, 383. 



Ivv, 382. 



Oak, 382, 383. _ 



Sumacli, 383. 



Vines, 382. 

 I'oison-wood, 382. 

 Polanisia, 180, 182. 



graveoleus, 182. 



tenuifolia, 182. 



trachysperma, 182. 



uniglandulosa, 182. 



uniglandulosa, 182. 



viscosa, 182. 

 Polycarpa, 254. 

 Polycarpaa, 255. 



POLYCARPE^, 210. 



Polycarpon, 210, 254. 



depressum, 255. 



sti])ulicidum, 255 



tetraphyllum, 254. 



uniflorum, 240, 254. 

 Polygala, 449. 



acanthoclada, 452. 



acutifolia, 459. 



alba, 455. 



a/6a, 454, 455. 



ambigua, 456, 457. 



Americana, 449. 



Arizonje, 451. 



.4r/20?ife, 452. 



attenuuta, 458, 459. 



Balduini, 459. 



Baldwiui, 459. 



Baldivinii, 459. 



bicoliir, 454, 455. 



Bovkini, 454. 



Boykinii, 454, 455, 



brevi folia, 458. 



buxi folia, 450. 



Californica, 452. 



