490 



INDEX. 



parvijlora, 200. 



pilosa, 201. 



pubescens, 201. 



Sibirica, 200. 

 Virginica, 200. 

 Purshia mollis, 206. 



hispida, 206. 

 Pycnanthemum, 343, 354. 



albescens, 356. 



aristatum, 354. 



Arkansanum, 355. 



Californicum, 355. 



clinopodioides, 355. 



dubium, 355. 



hyssop/folium, 354. 



incanum, 355. 



incanum, 356. 



lanceolatum, 354. 



leptodon, 355. 



linifolium, 354. 



Loomisii, 356. 



montanum, 356. 



Monardella, 374. 



muticum, 355. 



nudum, 354. 



pilosum, 355. 



setosum, 354. 



tenuifolium, 354. 



Torrevi, 355. 



Tullia", 355. 



verticillatum, 354. 



Virginicum, 354, 355. 

 Pycnosphace, 366. 

 Pycnothymus, 358. 

 Pyrola, 18, 46. 



aphylla, 48. 



asarifolia, 47. 



bracteaia, 48. 



chlorantha, 47. 



corymbosa, 45. 



dentata, 48. 



elata, 48. 



elliptica, 47. 



grandijlora, 48. 



Groznlandica, 48. 



maculata, 45. 



Menziesii, 45. 



minor, 46. 



obovatn, 48. 



occidentalis, 47. 



ox)'petala, 47. 



picta, 48. 



renijblia, 47. 



rosea, 46. 



rotundifolia, 47. 



secunda, 46. 



uliginosa, 48. 



umbellata, 45. 



uniflora, 45. 



PTEOLEiE, 17. 



PyeolinejE, 17. 

 Pyxidanthera, 52. 

 barbulata, 52. 

 Pyxolhamnus, 25. 



Quamoclit, 209. 

 coccanea, 209. 

 hederifolia, 209. 

 vulgaris, 209. 



Ramsted, 251. 

 Itanapalus Eiseni, 451. 

 Rapanea Guyanensis, 65 

 Bed Ash, 74. 

 Rhabdadenia, 84. 



paludosa, 401. 



Sagrcei, 84. 

 Rhinanthid'e/e, 248. 

 Rhinanthus, 249, 310, 



Crista-galli, 310. 



?ninor, 310. 



Virginicus, 291. 



RHODODENDKEJi, 16. 



Rhododendron, 16, 39, 398. 



albiflorum, 40. 



arborescens, 40. 



bicolor, 41. 



calendulaceum, 41. 



calendulaceum, 40. 



Californicum, 41, 398. 



canescens, 41. 



Catawbiense, 42. 



Chapmanii, 42. 



glaucum, 41. 



hispidum, 41. 



Kamtschaticum, 40. 



Lapponicum, 42. 



macrophyllum, 42, 398. 



maximum, 42. 



minus, 42. 



nitidum, 41. 



nudiflorum, 41. 



occidentale, 40. 



pulcliellum, 41. 



purpureum, 42. 



punctatum, 42. 



Purshii, 42. 



Ehodora, 41. 



Vaseyi, 398. 



viscosum, 40. 

 Rhodothamnus Kamtschaticus, 40. 

 Rhcdora Canadensis, 41. 



congesta, 41. 

 Rhynchospermum, 85. 

 Rhytiglossa humilis, 330. 



obiusifolia, 330. 



pedunculosa, 329. 



viridi flora, 330. 



viridy'olia, 330. 

 Ribgrass, 391. 

 Ribwort, 389. 

 Ripple-grass, 391. 

 Rochelia glomerata, 198. 



patens, 197, 422. 

 Romanzoffia, 153, 172, 418. 



Sitchensis, 172, 418. 



TJnalaschkensis, 172, 418. 

 Rose Bay, 39, 42. 

 Rothrockia, 401, 403. 



cordifolia, 403. 

 Roulinia, 86, 100. 



unifaria, 100. 

 Ruellia, 322, 325. 



biflora, 324. 



ci'liosa, 326, 457. 



clandestina, 325. 



Drummondiana, 326. 



cfata's, 327. 



kirsuta, 326. 



humilis, 326. 



humistrata, 324. 



hybrida, 326. 

 justiciazflora, 324. 



lacuslris, 324. 



noctiflora,326. 



oblonqifolia, 324. 



Parryi, 326. 



pediuiculata, 325. 



strepens, 327. 



strepens, 326. 



tuberosa, 325. 

 tubijlora, 326. 

 Ruelliejs, 322. 



Sabbatia, 110, 113. 



angularis, 114. 



Boyldni, 116. 



brachiata, 114. 



eatycosa, 114. 



campestris, 115. 



chloroides, 115. 



concinn'i, 114. 



corymbosa, 114. 



cymosa, 114. 



Elliottii, 115. 



formosa, 115. 



gentianoides, 115. 



gracilis, 115. 



gracilis, 114. 



lanceolata, 114. 



macrophylla, 114. 



oligopkylla, 115. 



paniculata, 114. 



paniculata, 115. 



simplex, 116. 



stellaris, 115. 

 Saccanthera, 271. 

 Saccularia Veatcliii, 439. 

 Sage, 366. 



Sagina Virginica, 127. 

 Sckistophragma, 279. 

 Salal, 30. 

 Salazaria, 346, 382. 



Mexicana, 382. 

 Salpichroa, 225, 231. 



Wrightii, 231. 

 Salpiglosside.e, 226. 

 Salpiglossis prostrata, 243. 

 Salvia, 345, 366, 460. 



acuminata, 369. 



acuminatissima, 369. 



albiflora, 370, 461. 



amabilis, 369. 



angustifolia, 369. 



angustifolia, 369. 



Arizonica, 370. 



azurea, 369. 



ballotseflora, 371. 



Bernardina, 460. 



Blodgettii, 370. 



brevvflora, 461. 



csesia, 369. 



carduacea, 366. 



chamanlryoides, 371. 



CJiammdrys, 371. 



Chapmani, 370. 



Claytoni, 370, 372. 



coccinea, 368. 



Columbaria?, 367. 



coriifolia, 367. 



etoa, 369. 



elongata, 369. 



Engelmanni, 366. 



farinacea, 368. 



fulgens, 366. 



gossypina, 366. 



Greggii, 368, 460. 



Henryi, 367. 



Hispanica, 461. 



lanceolata, 369. 



fa;ra, 371. 



Lemmoni, 461. 



longifolia, 369. 



lyrata, 367. 



Mexicana, 369. 



