INDEX. 



675 



Nama Sandwicensis, 283. . 



sericea, 285. 



systyla, 285. 



undulata, 282. 

 Nardophyllum genistoides, 636. 

 Nasturtium curvisiliqua, 376. 



palustre, 376. 

 Navarretia, 268, 270. 



heterophylla, 260. 

 Nebula?, 516. 



Nemacaulis Nuttallii, 146. 

 Nemophila parviflora, 397. 

 Nicotiana multivalvis, 398. 

 Nuphar polysepalurn, 376. 

 Nuttallia cerasiformis, 381. 



O. 



Observatory of Cordoba, 499. 

 CEnanthe sarmentosa, 385. 

 Oenothera albicaulis, 384. 



densiflora, 384. 



glabella, 384. 



Lindleyi, 384. 



purpurea, 384. 



Revision of, 573. 



Index to species, 601. 

 Officers elected, 3, 7, 104, 110, 



121, 122, 328, 441. 

 Optical Meteorology, 215. 

 Oritropium, 389. 

 Orthocarpus bracteosus, 396. 



hispidus, 396. 



pusillus, 396. 

 Orthomeris, 388. 

 Osmorrhiza nuda, 386. 

 Oxalis corniculata, 378. 



Oregana, 378. 

 Oxytheca, 190. 



dendroidea, 190. 



glandulosa, 181. 



perfoliata, 191. 



Watsoni, 191. 



P. 



Pachystima Canbyi, 623. 

 Myrsinites, 378, 624. 



Palafoxia leucophylla, 291. 

 Panicum dichotoruum, 411. 



scoparium, 411. 

 Pedicularis Groenlandica, 396. 



racemosa, 396. 

 PentachiEta, 633. 



aurea, 633. 



exilis, 633. 



gracilis, 633. 

 Pentstemon diffusus, 395. 



Menziesii, 394. 



Palraeri, 291. 



Richardsonii, 395. 



triphyllus, 394. 

 Perilomia, 370. 

 Periodicity of the Aurora Borealis, 



55. 

 Perityle Acmella, 648. 

 Peucedanum leiocarpum, 386. 



macrocarpum, 385. 



nudicaule, 385. 



triternatum, 385. 



utriculatum, 385. 

 Phegopteris Dryopteris, 411. 

 Pheliprea pinetorura, 394. 

 Philadelphus. Lewisii, 383. 

 Phleuni alpinum, 408. 

 Phoradendron flavescens, 401. 

 Phyllotaxis, 335. 

 Phloganthea, 260. 

 Phlox, 249. 



acuminata, 249. 



amoena, 251. 



andicola, 254. 



aristata, 251, 252? 



bifida, 251. 



bryoides, 253. 



caespitosa, 253. 



canescens, 253. 



carnea, 250. 



Carolina, 249. 



cordata, 249. 



corymbosa, 249. 



crassifolia, 251. 



divaricata, 251. 



Douglasii, 254, 397. 



Druramondii, 257. 



Floridana, 250. 



glaberrima, 250. 



glandulosa, 249. 



