INDEX. 



489 



Floridanus, 21. 



Stamlneus, 21. 

 Picrocolla, 146. 

 Pieris, 32- 



philhjveifolia, 32. 

 Pimpernel, 63. 

 Pine-drops, 48. 

 Pine-sap, 49. 

 Pinguicnla, 314, 317. 



acutifolia, 317- 



alpina, 317. 



australis, 318, 456. 



cazrufoa, 317. 



campanulata, 318. 



elatior, 318. 



Floridensis, 456. 



qrandiflora, 317. 



iutea, 318. 



macroceras, 317. 



m£croce7'as, 317. 



pumila, 317, 456. 



villosa, 317. 



vulgaris, 317. 

 Pipsissewa, 45. 

 Piptocalyx, 193, 428. 



circumscissuS) 193. 

 Piptolepts, 76- 



pkillyreioides, 77. 

 Plttonia similis, 181. 

 Plantain, 389, 391. 

 Plagiobothrys, (191), 420, 43U. 



Arizonicus, 431. 



canescens, (192), 431. 



Cooperi, 432. 



glomeratus, 432. 



hispidus, 432. 



Jonesii, 430. 



Kingii, 430. 



nothofulvus, 432. 



rufescens, 431. 



rufescens, 192. 



Shastensis, 431. 



tenellus, 431. 



Torreyi, 431- 



ursinus, 432. 

 PLANTAGINACEiE, 388. 

 Plantago, 389. 



aristata, 391. 



Asiatica, 389. 



attenuatcr, 390. 



Bigelovii, 392. 



Bigelovii, 392. 



borealis, 390. 



Californica, 392. 



Caroliniana, 390, 392. 



cordata, 389. 



Coronopus, 392 1 . 



cucullata, 390. 



decipiens, 391. 



Durvillei, 392. 



elongata, 392. 



eriopoda, 390. 

 JlUformis, 391. 



glabra, 390. 



gnaphalioides, 391. 



Hartwegi, 392. 



heterophvlla, 392. 



hirtella, 392. 



Sookeriana, 39J. 



hybrida, 392. 



interrupta, 390. 

 juncoides, 390, 391. 



Lagopus, 391. 



lanceolata, 391. 



lanceolata, 390. 



linearifolia, 392. 



longifolia, 390. 



Kamtschatica, 389, 390, 392. 



Kentuckensis, 389. 



macrocarpa, 390. 



major, 389. 



major, 390. 



maritima, 390. 



maritima, 391. 



media, 392. 



minima, 380. 



occkhntalis, 392. 



oliganthos, 390. 



Patagoniea, 391. 



_pa«cytfom, 390. 391. 



perpusilla, 392. 



purpurascens, 392. 



Purshii, 391. 



pusilla, 392. 



Richardsonii, 390. 



Rugelii, 389. 



sparsiflora, 390. 



spinulosa, 391. 



squarrosa, 391. 



Tweedyi, 390. 



Crvilki, 392. 



Virginica, 392. 



Virginica, 390, 392. 



vtrescens, 390. 

 Wri(jhtiann , 391. 

 Pleuricospora, 18, 50, 398. 



fimbriolata, 50, 398- 

 Pleuk i oospores, 18. 

 Pleurisv-root, 89. 

 Pleurogyne, 111, 124. 



Carinthiaca, 124. 



Purshii, 124. 



rotata, 124. 

 PLUMBAGINACE^E, 53. 

 Plumeagine^e, 54. 

 Plumbago, 54, 55. 



Floridana, 55. 



scandens, 55. 



PlUMEEIE^E, 79. 

 Pneumonanthe , 120. 

 Podostemma, 98. 

 Podostigma, 86, 88. 



pubescens, 88. 



viridis, 89. 

 Pogogyne, 344, 364. 



Douglasii, 364. 



multiflora, 364. 



nudiuscula, 364. 



parviflora, 364. 



serpylloides, 364. 



tenuiflora, 364. 



ziziphoroidc^ 364. 

 POLEaLONIACE^E, 126. 

 Polemonium, 129, 149, 412. 



acutijiorum, 151. 



antarcticum, 151. 



cairuleum, 151, 412. 



c&ruleum, 151. 



capitatum, 147, 150. 



carneum, 151, 412. 



confertum, 150. 



dub'mm, 163. 



flavum, 412. 



foliosissimum, 151, 412. 



humile, 150. 



lanatum, 150. 



Mexicanum, 151, 412. 



micranthum, 151. 



moschatum, 151. 



Nycteha, 157. 



^w/t7ie/fom,150. 



pulclierrimum, 151. 



repbms, 151. 



Richardsonii, 150. 



rubruni, 145. 



viscosum, 150. 



viscosum, 150. 

 Poliomintha, 344, 361, 460. 



glabrescens, 460. 



incana, 361. 



mollis, 361. 

 Pobjdiclia, 243. 

 Polydiclis multivalvis, 243. 



quadrivalvis, 243. 

 Pol^ypremum, 107, 109. 



Linnaii, 109- 



procumbens, 109. 

 Polyotus angustifolhis, 98. 



htterophyllus, 99. 



lanuginosus, 99. 



longifolius, 99. 

 Pongatium Indicum, 10. 

 Porterella carnosula, 8. 

 Portuna, 31. 



Jloribunda, 31. 

 Potato, 227. 

 Prasium coccineum, 383. 



incarnation., 384. 



purpureum, 383. 

 Primrose, 58. 

 Primula, 56, 58, 399. 



angustifolia, 58, 399. 



borealis, 58, 399. 



cuneifolia, 59. 



Cusicluana, 399. 



Egaliksensis, 399. 



farinosa, 58. 



Finmarkica, 58. 



Hornemanniana, 58. 



integri folia, 58. 



Mistassinica, 58. 



nivalis, 59. 



Parryi, 59. 



pusiUu, 58. 



Rusbyi, 399. 



saxifra gee folia, 59. 



Sibirica, 58. 



Scotica, 58. 



stricta, 58. 



suffrutescens, 59. 

 PRIMULACEJL, 55, 399. 

 Peimule^e, 55. 

 Priva, 333, 334. 



echinata, 334. 

 Proboscidea, 321. 

 Prunella, 382. 

 Pseudocollomia, 143. 

 Pseudokrynitzhia, 429. 

 Pseudo-Myosotis, 195, 197. 429. 

 Ppeudoronfium, 251. 



PSEUDOSOLANEJE, 245. 



Pterospora, 18, 48. 



andromedea, 49. 

 Pterostyrax, 71. 

 Pterygium, 195, 428. 

 Ptilocalyx Greggii, 182. 

 Puccoon, 204. 

 Pulmonaria alpina, 201. 



ciliata, 201. 



denticulata , 200. 



lanceolata, 201. 



marginata, 201. 



maritima, 200. 



oblongifolia, 200. 



paniculata, 201. 



