INDEX. 



G27 



Pctroi)liytnm, 170. 

 Petunia, f)46. 

 Pencedamiin, 267. 

 Peucephylhim, 409. 

 Phaca., 146, 148-151 



155. 

 Phncelia, 506. 

 rhncelia, 505, 515. 

 Phmostnma, 232. 

 Plialacroldiiia, 331. 

 Phakciosoris, 423. 

 Phr.lipim, 584, 585. 

 Phdlinuli-ium, 264. 

 Pliiladelplius, 202. 

 Phlox, 486. 

 Phlnx, 493. 

 Phmnicmilis, 35. 

 Pholisma, 464. 

 Phntinia, 188. 

 Phyllodocc, 456. 

 Plii/llnpappns, 423. 

 PliyHnli.s, 540. 

 Pliysaria, 47. 

 Pickoriiigia, 114. 

 Picradenia, 394. 

 Picrothammm, 404. 

 Piloccrens, 247. 

 I'lmpeniel, 469. 

 Pimpinella, 259. 

 Pin-olover, 95. 

 I'iii-gm.ss, 95. 

 Pine-.snp, 462. 

 Pinodrops, 461. 

 Piiignieula, 586. 

 Pij)siHse\va, 459. 

 Piptoealyx, 527. 

 Pirns, 188. 

 Pistacia, 109. 

 Pitavia, 98. 

 Plagiobotlny.s, 526. 

 Plantaginacje^, 610. 

 PInntnffo, 610. 

 Plantain, 610. 

 IMatopnntia, 248. 

 Platycaipoa, 124. 

 I'latyspnnnnni, 27. 

 Platystenion, 19. 

 Platystignin, 20. 

 Plectritis, 287. 

 Pleuricospora, 463. 

 Pleurogync, 478. 

 Pluchea", 334. 

 Plum, 166. 



Pi,irMnAf:iNACK/T;, 465. 

 I'nnninonantlie, 482. 

 Podosciadiiiin, 263. 

 Pogogync, 596. 

 Poisoii Hondock, 258. 

 Poi.son Oak, 110. 

 Polanisia, 50. 



POTJOMONIACK.K, 485. 



Polpmoiunin, 499. 

 I'olycnrpon, 71. 

 Polyfrala, 58. 

 P()l,Yr!Ar,Aci'.T;, 58. 

 Pnb/prrpptis, 334. 

 PoMK.f;, 166. 

 Pond-Lilv, 17. 



Pofoi)hvlIn!n, 898. 

 Portrrella, 444. 

 Portnlaca, 73. 

 I'ourULACACE^, 73. 

 Potato, 558. 

 Potentilla, 177. 

 Polentmn,, 181, 184. 

 Poteridium, 186. 

 I'oteiinni, 186. 

 Prcnanthea, 428. 

 Piinirose, 468. 

 I'riniula, 468. 

 PltIMULACF,/K, 466. 

 Prince's Pine, 459. 

 Prosopis, 102. 

 PrunuH, 166. 

 Psatiiyrotes, 409. 

 Psilocarphus, 336. 

 I'silociirphns, 337. 

 Psilochenia, 435. 

 P.soralea, 139. 

 Ptolon, 97. 

 Pterospora, 461. 

 P/eroskp/iainis, 431 . 

 Piiloculijx, 520. 

 PtiloineVis, 378. 

 Ptilophom, 423. 

 Pnc(-oon, 522. 

 Pngiopappns, 354. 

 Palmmtavm, 523. 

 Pulsatilla, 3. 

 Pnrsliia, 173. 

 Purslane, 73. 

 Pycnanthemum, 592. 

 Pyrola, 460. 

 Purola, 459, 460. 

 Pi/rrocoma, 311, 312, 



'315. 

 Hadisli, 49. 

 Uafinesi|uia, 429. 

 Ragweed, 344. 

 Paillnrd^-lla, 416, 618. 

 RANirN(!UI,A('K,/K, 2. 



Hainuiculus, 5. 

 Paplianns, 49. 

 Raspberry, 171. 

 Rattleweed, 144. 

 Rcd-buil, 160. 

 Red Clover, 128. 

 Redwood, lot. 

 Rtdbuninin, 283. 

 Reseda, 53. 

 Rkskpackj;;, 53. 

 r11amnack.t:, 99. 

 Rhamnns, 100. 

 Rliododendron, 457. 

 Rhus, 109. 

 Ithynchohpix, 335. 

 Ribesia, 206. 

 Ribes, 204. 

 Ribgrass, 610. 

 Riddelin, 372. 

 Itigiopappus, 387. 

 Robsonia, 204. 

 RoinanzofTia, 516. 

 ]?oinncva, 20. 

 Ros.a, 187. 

 RosACEiE, 164. 



Rose, 187. 

 Rose Hay, 458. 

 Rosin weed, 361. 

 RiiniACK;*:, 281. 

 Rubus, 171. 

 Rudbeckia, 347. 

 Ruellia, 588. 

 RuiAcF.^;, 96. 

 llntosmn, 97. 

 Snrcu/ttrin, 551. 

 Sage, 598. 

 Sage-bush, 402. 

 Sagina, 70. 

 St. .lohn's-wort, 80. 

 Salal, 454. 

 Salazaria, 604. 

 Salmon -berry, 171. 

 S'llpii/losais, 546. 

 Salsify, 422. 

 Salvia, 598. 

 Sainbucus, 277. 

 Samolus, 470. 

 Sand-Spinrcy, 71. 

 Samlwort, 68. 

 Sdiujii.iHorhn, 186. 

 Sanicle, 255. 

 Sanicula, 255. 

 Santoliim, 40], 

 Sai'INI)ACK/K, 105. 

 Sararhn, 540, 541. 

 Sarcodes, 462. 

 Sari'osteinnia, 477. 

 Sailuaceniackm. 17. 

 Saxifraga, 192. 

 S'luri/nnin, 196. 

 Saxifp.aijai-k.k, 192. 

 Saxifrnge, 192. 

 Schinus, 109. 

 Srhizocarjin, 231. 

 Seliizoiiotus, 477. 

 Srffniriirpiis, 3(50. 

 Scorpion -(!rass, 522. 

 ScorzoncIIii, 424. 

 Scre\v-l)can, 162. 

 Screw-pod Mesi[\iite, 



163. 

 Scroj)hulana, 552. 



ScitniMHIt.ARIACE/K, 



546. 

 Scutellaria, 602. 

 Sca-Milkwort, 469. 

 Sea- Purslane, 251. 

 Scdnin, 209. 

 S;rd,(m, 211, 212. 

 Sclf-hcai, 004. 

 Sclinuin, 264. 

 Srliniim, 266. 

 Scnipervivuu), 208. 

 Sciiobicnt, 48. 

 Scnc.io, 410, 618. 

 Srnrcio, 431. 

 Scnnn, 161. 

 Sciicocarpus, 319. 

 Srriroijvitphix, 589. 

 Seriphidium, 405. 

 Service-berry, 189. 

 Srseli, 268. ■ 

 Sesuvium, 251. 



Rlicphrrd'a Purse, 44. 

 Shurtui, 378. 

 Sibbaldia, 180. 

 Sida, 86. 



,Sida, 83, 84, 87. 

 Sidalcea, 83. 

 Sicvcrsin, 176. 

 Silcne, 62. 

 Silvbuni, 421. 

 Silkweed, 474. 

 Sun-iia, 351. 

 Shift pis, 39. 

 Siphocaly.", 207. 

 Siphonella, 492. 

 Sisymbrium, 40. 

 Slum, 261. 

 Slum, 260. 

 Skullcan, 602. 

 Small Munzanita, 453. 

 Snudowskia, 42. 

 Smrloirskiii, 41. 

 Snapdragon, 548. 

 Sneczc-wecd, 392. 

 Snow-Plnnt, 462. 

 Snowl>erry, 279. 

 Snowbush, 103. 

 Sor.ANACE.*;, 537. 

 Solannni, 538. 

 Solanum., 538. 

 Solidago, 318. 

 SnNd^ujo, 314. 

 Soliva, 406. 

 Sonchus, 442. 

 Sm,r/n(.<;, 442. 

 Sojiliora, 114. 

 Sorbus, 189. 

 Sow-Thistle, 442. 

 Spanish Needles, 357. 

 Spearmint, 592. 

 Spccularia, 446. 

 Si)eedwell, 572. 

 Spergula, 70. 

 Spmjuln, 70. 

 Sperriulnrin, 71. 

 Sphacelc, 598. 

 Sphccno.iciadiiim, 265. 

 Spli.-Braleea, 86. 

 Sph-teralcca, 87. 

 Sp/un-oweria, 617. 

 S|)lia!rostigma, 225. 

 Spikenard, 273. 

 Spilnnthes, 397. 

 Spindle-tree, 98. 

 SpiiTea, 169. 

 Spiran, 171. 

 Spiaguca, 77. 

 Stachvs. 605. 

 Stanleva, 38. 

 Stapliylea, 108. 

 Star-flower, 468. 

 St.ar-Thistle, 421. 

 Stat ice, 465. 

 S/ntirr, 465. 

 S/nfim-itrpii.i, 520. 

 Stellaria, 67. 

 Stemodia, 570. 

 Sfenacfis, 330, 331. 

 S(enofu.i, 311. 



