INDEX. 



585 



Platystemonese, 270. 

 Plumeria Mexicana, Lodd., 434. 

 Poa infima, HBK., 461. 

 Podistera, 475. 



Nevadensis, 475. 

 Polygala Amei'icana, Mill., 398. 

 Berlandieri, Watson, 398. 

 conferta, Bennett, 398. 

 glochidata, HBK., 398. 

 gracillima, 398. 



?, 398. 



leptocaulis, Torr. & Gray, 398. 

 longicaulis, HBK., 398. 

 Polypetalous genera and orders, re- 

 vision of some, precursory to 

 the flora of North America, 

 270. 

 Polypodium aureum, Linn., 462. 

 var. areolatum, 462. 

 plesiosorum, Kunze, 462. 

 thyssanolepis, Al. Braun., 462. 

 Polypremum procumbens, Linn., 



438. 

 Porophyllum Seemanni, Schultz 

 Bip.,431. 

 viridiflorum, DC, 431. 

 Portulaca, 272, 274. 



halimoides, L., 274. 

 parvula, 274. 

 pilosa, L., 274. 



stelliformis, Mo9ino & Sesse, 

 274. 

 Portulacacese, 272. 

 Potassic mucoxybromate, 318. 



mucoxychlorate, 330. 

 Potassium from lithium, a method 

 for the separation of sodium 

 and, by the action of amyl 

 alcohol on the chlorides, with 

 some reference to a similar 

 separation of the same from 

 magnesium and calcium, 177. 

 Pouzolzia nivea, 453. 



Palmeri, 453. 

 Powell, John Wesley, election of, 



506. 

 Priva hispida, Juss., 444. 

 Prochnyanthes, 457. 

 viridescens, 457. 

 Prockia crucis, Linn., 401. 

 Prunus salicifolia, HBK., 411. 

 Psilotum triquetrum, Linn., 465. 

 Pyrogallol triparabi'ombenzoate, 

 257. 

 properties, 258. 

 Pyrrhopappus multicaulis, DC, 433. 



Q. 



Quercus Sadleriana, R. Brown, 477. 



R. 



Ranke, Leopold von, death of, 499. 



biographical notice of, 542. 

 Ranunculus Hookeri, Schlecht.,397. 

 Ravenelia glandulseformis, on the 

 morphology of, 205-218. 

 aculeifera, Berk., 212, 213, 215, 



217. 

 glabra, K. & Cke., 213, 215- 



217, 219. 

 glandulosa, Berk. & Curt., 211, 



212. 

 HJbs"oni, Cke., 213. 

 Indica, Berk., 211-215, 217, 



218. 

 macrocystis. Berk. & Br., 212, 



213. 

 sessilis, Berk., 212, 216-218. 

 strictica, Berk. & Br., 212, 213, 



217 219. 

 Tephrosife, 217. 

 explanation of figures, 218. 

 Rhamnus Palmeri, 403. 

 Rhizomatose, 280. 

 Rhynchosia minima, DC, 408. 

 nigropunctata, 408. 

 phaseoloides, DC, 407. 

 Rhynchospora, 459. 

 Richardia scabra, Linn., 417. 

 Richardson, Henry Hobson, death 

 of, 503. 

 biographical notice of 539. 

 Ritchie, John, Jr., election of, 506. 

 Roestelia aurantiaca, 265, 267, 268. 

 botryapites, 265, 269. 

 cornuta, 267-269. 

 lacerata, 265-269. 

 penicillata, 265, 266. 

 pyrata, 266, 269. 

 transformans, 265, 269. 

 Roestelije on certain cultures of 

 Gymnosporangium, with 



notes, 259. 

 Rothrockia, Gray, 437. 

 Roulinia Jacquini, Decaisne, 435. 

 Ruellia pilosa, Pav., 443. 

 Rumford medals, presentation of 



the, 508. 

 Russellia sarmentosa, Jacq., 442, 



