490 



INDEX. 



parviflora, 200. 



pilosa, 201. 



pubescens, 201. 



Sibirica, 200. 

 Virginica, 200. 

 Purshia mollis, 206. 



hispida, 206. 

 Pycnanthemuui, 343, 354. 



albescens, 356. 



aristatum, 354. 



Arkansanum, 355. 



Californicum, 355. 



clinopodioides, 355. 



dubhim, 355. 



hyssopifolium, 354. 



incanuin, 355. 



incanum, 356. 



lanceolatum, 354. 



leptodon, 355. 



linifoliuiii, 354. 



Loomisii, 356. 



moiitaniini, 356. 



Monardella , 374. 



muticuni, 355. 



nudum, 354. 



pilosum, 355. 



seiosum, 354. 



tenuij'olium, 354. 



Torreyi, 355. 



Tullia', 355. 



verlicillaium, 354. 



Virginicum, 354, 355. 

 Pi/cnosphace, 366. 

 Pycnothymvs, 358. 

 Pvrola, 18, 46. 



aphylla, 48. 



asarifuUa, 47. 



bracteata, 48. 



chlorantha, 47. 



corymbosa, 45. 



denfata. 48. 



cZ^rrt, 48. 



elliptica, 47. 



grandijtura, 48. 



Grcenlandica, 48. 



maculata, 45. 



Memiesii, 45. 



minor, 46. 



obovati, 48. 



occidentalis, 47. 



oxvpetala, 47. 



picta, 48. 



renij'olia, 47. 



rosea, 46. 



rotundifolia, 47. 



secunda. 46. 



uliginosa, 48. 



umbellnta, 45. 



unijlura, 45. 

 Pyrole.e, 17. 

 Pyrolixe^, 17. 

 Pyxidanthera, 52. 



barbulata, 52. 

 Pyxothamnus, 25. 



QuamocUf, 209. 

 coccinen, 209. 

 hederifoUn, 209. 

 vulgaris, 209. 



Ramsted, 251. 

 Rnnapalus Eiseni, 451. 

 R'ipanea Giiyanensis, 65 

 Red Ash, 74. 

 Rhabdadenia, 84. 



paludosa, 401. 



Sagrcei, 84. 

 Rhinantiiidk.e, 248. 

 lihinauthus, 249, 310, 



Crista-galli, 310. 



minor, 310. 



Virginicus, 291. 

 Rhododexdre.e, 16. 

 Rhododendron, 16, 39, 398. 



albiflorum, 40. 



arborescens, 40. 



bicolor, 41 . 



calendulaceuni, 41. 



calenduUiceiLin, 40. 



Californicum, 41, 398. 



canescens, 41. 



Catawbiense, 42. 



Chapmanii, 42. 



glaucum, 41. 



hispidtini, 41. 



Kamtschaticum, 40. 



Lapponicum, 42. 



macrophyllum, 42, 398. 



maxinuim, 42. 



viiiiiis, 42. 



nitidum, 41. 



nudiflorum, 41. 



occidentale, 40. 



pulchellum, 41. 



purpureum, 42. 



punctatum, 42. 



Purshii, 42. 



Rhodora, 41. 



Vaseyi, 398. 



viscosum, 40. 

 Rhodothamnus Kamtschnticus, 40. 

 Rhvdora Canadensis, 41. 



congesta, 41. 

 Rhynchospermum, 85. 

 Rhytiglossa humilis, 330. 



obtusifolia, 330. 



pedunculosa, 329. 



viridiflora, 330. 



viridijblia, 330. 

 Ribijrass, 391. 

 Ribwort, 389. 

 Ripple-grass, 391. 

 RucheUa glomerata, 195. 



patens, 197, 422. 

 Romanzoffia, 153, 172, 418. 



Sitchensis, 172, 418. 



Unalaschkensis, 172, 418. 

 Rose Bav, 39, 42. 

 Rothrocliia, 401, 403. 



cordifolia, 403. 

 Roulinia, 86, 100. 



unifaria, 100. 

 Ruellia, 322, 325. 



biftora, 324. 



ciliosa, .326, 457. 



clandestina, 325. 



Drummondiana, 326. 



f/«/c/.<, 327. 



hirsiita, 326. 



fnimilis, 326. 



humistrntri, 324. 



hybrlda, 326. 



juslicia'jiorii, 324. 



Idcuslns, 324. 



noctiflora, 326. 



iiblonqifolia, 324. 



Parryi; 326. 



pedunculata, 325. 



strepens, 327. 



strepens, 326. 



tuberosa, 325. 

 tiibijiora, S26. 



RUELLIE.E, 322. 



Sabbatia, 110, 113. 



angularis, 114. 



Boykini, 116. 



brachiata, 1 14. 



calycosa, 114. 



campestris, 115. 



chloroides, 115. 



concinni, 114. 



corymbosa, 114. 



cymosa, 114. 



Eiliottii, 115. 

 forntosa, 115. 



gentianoides, 115. 



gracilis, 115. 



gracilis, 114. 



lanceolata, 114. 



macro])hvi]a, 114. 



oligophyUa, 115. 



paniculata, 114. 



paniculaia, 115. 



simplex, 116. 



stellaris, 115. 

 Saccanihera, 271. 

 Saccularia Veatc/iii, 439. 

 Sage, 366. 



Sagina Virginica, 127. 

 Scliistoj)hragma, 279. 

 Salal, 30. 

 Salazaria, 346, 382. 



Mexicana, 382. 

 Salpichroa, 225, 231. 



Wrightii, 231. 

 Salpiglosside.e, 226. 

 Halpicjlossis prostratu , 243. 

 Salvia, 345, 366, 460. 



acuminata, 369. 



acuminatissima, 369. 



albiflora, 370, 461. 



amabilis, 369. 



angustifolia, 369. 



angusiifolin, 369. 



Arizonica, 370. 



azurea, 369. 



ballotieflora, 371. 



Bernardma, 400. 



Blodgettii, 370. 



brerijlora, 461. 



ctesia, 369. 



carduacea, 366. 



chamwdryoides, 371. 



Chamcedrys, 371. 



Chapmani, 370. 



Claytoni, 370, 372. 



coccinea, 368 



Columbaria^ 307. 



conij'olia, 367. 



elntn, 309. 



elongata, 369. 



Eugelmanni, 366. 



fariuacea, 368. 



f'ulgens, 366. 



gossypina, 366. 



Greggii, 368, 460. 



Henryi. 367. 



Hispanica, 461. 



lanceolata, 369. 



Zaa-a, 371. 



Lemmoni, 461. 



longifolia, 369. 



hrata, 367. 



Mexicana, 369. 



