570 



INDEX. 



Polygala asperuloides, HBK., 459. 

 Berlandieri, 41(j. 

 Jioykinii, 410. 

 scoparia, 416. 

 Polygonum I^ersicaria, Linn., 438. 

 Polysiphoniaarctica, J. G. Agardh., 



470. 

 Porophyllum macroceiDhalum, DC, 

 433. 

 Seemanni, Schultz Bip., 392, 

 433. 

 Portulaca pilosa, Linn.? , 417. 

 Potassic antimonoso-phospho-tung- 

 state, 103. 

 arsenoso - phospho - tungstate, 



99, 102. 

 /3y-dibrompyromucate, 170. 

 /3S-dibronipyroinucate, 163. 

 /ii-monobroinpyromucate, 150. 

 8-inonobrompyroraucate, 141. 

 monometapliospho - tungstate, 



112. 

 phospho - hypophospho - tung- 

 state, 97. 

 phosphovoso - phospho - tung- 

 state, 95. 

 phosi^horoso-tungstate, 87. 

 phospho-vanadate, 55. 

 phospho - vanadico - vanadate, 



62. 

 pyrophospho - tungstate, 109, 



110. 

 tribrompyromucate, 178. 

 Potassio - sodic ortliometaphospho- 



tungstate, 115. 

 Potassium, antimonio-tungstate of, 



104. 

 Potassium hydrate, athermochemi- 

 cal analysis of the reaction 

 between alum and, 201. 

 Potentilla Thurberi, Gray, 428. 

 Proceedings of the Academy, 505. 

 Pseudaphanostemma, 365. 

 Psilactis asteroides, Gray, 432. 

 Psoralea Keverchoni, 447. 

 Ptelea angustifolia, Benth., 421. 

 Pteris aquilina, Linn., var. lanugi- 

 nosa, Bong , 444. 

 Ptilota pectinata, Kjellm., 475. 

 Pyromucic acids, on substituted, 



135. 

 Pyromucic tetrabromide, action of 

 alcoholic sodic hydrate upon, 

 155. 

 Pyrophospho-tungstate, ammonio- 

 sodic, 108. 



Pyrophospho-tungstate, potassic, 



109, 110. 

 Pyrophospho-tungstates, 107, 108. 

 analytical methods, 108. 



Quartz twins, 225. 



Quercus Emoryi, Torr., 441. 



R. 



Ralfsia deusta, J. G. Ag., 476. 

 Randia Pringlei, 379. 

 llanke, Leopold von, 517. 

 Ranunculi, Xorth American, a re- 

 vision of the, 363. 

 Ranunculus abortivus, L., and var. 



Harveyi, 372. 

 acriformis, 374. 

 acris, L., 375. 

 adoneus. Gray, 370. 

 affinis, R. Br., 371. 



var. validus, 371. 

 alismsefolius, Geyer, 368. 



var. alismellus, Gray, 368. 

 ambigens, Watson, 367. 

 Andersoni, Gray, 365. 

 aquatilis, L., 3(j3. 



var. trichophyllus, 363. 

 Arizonicus, Lemmon, 370. 



var. subaffinis, 370. 



var. subsagittatus, 370. 

 arvensis, L., 378. 

 Bloomeri, AVatson, 372. 

 bulbosus, 375. 

 Californicus, Benth , 374. 



var. latilobus, 375. 

 canus, Benth., 374. 

 Charaissonis, Schlecht., 365. 

 circinatus, >Sibth., 363. 

 cymbalaria, Pursh, 366. 

 digitatus,*IIook., 309. 

 Eschscholtzii. Schlecht., 371. 

 fascicularis, Muhl., 377. 

 Flammula, L., 367. 



var. intermedins. Hook., 367. 



var. reptans, E. Meyer, 367. 

 glaberrimus. Hook., 369. 

 glacialis, L., 365. 

 hebecarpus, Hook. & Am., 378. 

 hederaceus, 364. 

 hispidus, Michx., 37.5. 



var. Oreganus, 376. 



