676 



INDEX. 



Phlox glomerata, 251. 



glutinosa, 251. 



Hentzii, 252. 



Hoodii, 253. 



humilis, 255. 



involucrata, 251. 



latifolia, 249. 



linearifolia, 255. 



longiflora, 249. 



longifolia, 249, 254, 255. 



macrantha, 257. 



maculata, 249. 



muscoides, 253. 



nana, 256. 



nitida, 250. 



nivalis, 252. 



occidentalis, 256. 



odorata, 249. 



ovata, 248. 



paniculata, 249. 



penduliflora, 249. 



pilosa, 250. 



pinnata, 260. 



procumbens, 252. 



puberula, 250. 



pyramidalis, 249: 



reflexa, 249. 



reptans, 251. 



revoluta, 250. 



Richardsonii, 253. 



Rcemeriana, 257. 



scabra, 249. 



setacea, 252. 



Sibirica, 254, 255. 



SickmaVini, 249. 



speciosa, 255, 256. 



Stellaria, 252. 



stolonifera, 251. 



suaveolens, 249. 



subulata, 252. 



suffruticosa, 250. 



teretiflora, 249. 



triflora, 250. 



triovulata, 257. 



undulata, 249. 



Walteri, 251. 

 Photo-engraving, 488. 

 Photograph of sun, 228. 

 Phyllotaxis, 332. 

 Physostegia imbricata, 371. 



Physostegia intermedia, 371. 



parviflora. 371. 



Virginiana, 371. 

 Pimpinella Apiodora, 385. 

 Pinus albicaulis, 402. 



contorta, 402. 



monticola, 402. 



ponderosa, 402. 

 Pitysosperma, 375. 

 Plagiobotrys canescens, 397. 

 Planets, mean motions of, 336. 

 Plantago. Patagonica, 394. 

 Plectritis congesta, 388. 

 Pleuricospora fimbriolata, 394, 



629. 

 Poa andina, 409. 



stenantha, 409. 



tenuifolia, 409. 

 Polemonium, 280. 



casruleum, 281. 



capitatum, 281. 



confertum, 280. 



foliosissimum, 281. 



humile, 281. 



Mexicanum, 281. 



micranthum, 282. 



pulchellum, 281. 



reptans, 281. 



Richardsonii, 281. 



viscosum, 280. 

 Poliomintha, 295. 



incana, 296, 365. 



longiflora, 296, 365. 



marifolia, 365. 



mollis, 365. 

 Polygonum amphibium, 399. 



aviculare, 401. 



Bistorta, 399. 



coarctatum, 401. 



Convolvulus, 401. 



Davisiae, 399. 



Hartwrightii, 294. 



nodosum, 399. 



ramosissimum, 401. 



tenue, 401. 

 Polypodium Ghiesbreghtii, 618. 



Scouleri, 411. 



Stenoloma, 618. 



vulgare, 411. 

 Polypogon Monspeliensis, 408. 



