486 



INDEX. 



Pileolaria brevipes, B. & Uav., 76. 

 Puiaro])a[jpus roseus, Less., 110. 

 Pinguicula candata, SclilecUt, 132. 

 Pinus Ayacahuite, Elirenb., 158. 



cenibroides, Zucc, 158. 



latisquaraa, Eiigelm., 158. 



MontezuniEe, Lamb., 158. 



Teocote, Cham. & Schleclit (?), 

 158. 

 Plantago caulescens, 141. 



Hu-tella, HBK., 141. 



major, Liuii., 141. 



Mexicaua, Link., 141. 



Palagduica, Jacq., 141. 



Virginica, Linn., 141. 

 Plantamour, Emile, notice of, 461. 

 Platanus Liudeniaua, Mart. & Gal., 

 155. 



Mcxicana, Moric, 155. 

 Plucliea campliorata, DC, 103. 



odorata, Cass., 103. 



subdecurrens, DC, 103. 

 Plumbago pulcbeHa, Boiss., 112. 



scandeus, Linn., 112. 



Plumiera ? 113. 



Poa annua, Linn., 182. 



Ruprecbtii, Peyr., 182. 

 Pogonatum cucullatum, Hampe, 190. 

 PoHomintba glabrescens. Gray, 137. 

 Polygonum acre, Linn., 147. 



aviculare, Linn., 147. 



Peunsylvanicmn, Linn., 147. 



persicaria, Linn., 147. 

 Polypodium aureum, Linn., 183. 



cbeliosticton, Pee, 183. 



elipsoideum. Pee, 183. 



furfuraceum, Scblccbt, 183. 



incanum, Swartz, 183. 



lanceolatum, Linn., 184. 



Martensii, Mett., 183. 



plebeium, Schleclit, 183. 



plesiosorum, Kunze, 184. 



subpetiolatum, Hook., 183. 



tbyssanolepsis, Al. Br., 184. 

 Polyprenuun procumbens, Ijinn., 116. 

 Polyptcris callosa. Gray, 107- 



Hookeriana, Gray, 107. 



Texana, Gray, 107. 

 Populus alba, Linn., 156. 



Fremonti, Watson, 157. 

 Porophvllura amplexicaule, Eugelm., 

 108. 



filifolium. Gray, 107. 



macrocppbalum, DC, 108. 

 scoparium. Gray, 108. 

 Potamogeton hybridus, Michx., 169. 



Potamogeton natans, Linn., 169. 



paucitlorus, Pursli., 169. 

 Potassic nitrite solution, 276, 

 Potassic salt, 235. 



Potential of a shell bounded by con- 

 focal ellipsoidal surfaces, 226. 

 Priva tuberosa, 135. 

 Products of the dry distillation of 

 wood at low temperatures, 47. 

 Propionic and acrylic acids, on certain 



substituted, 41. 

 PseudotsugaDouglasii, Eugelm., 158. 

 Psilactis breviUngulata, Schultz Bip., 



102. 

 Pteris aquilina, Linn., 187. 

 Pterocaulon virgatum, DC, 103. 

 Puccinia curtipes, Howe, 82. 



emaculata, Schw., 81. 



epdobii, DC, 80. 



lantanaj, Farlow, 83. 



veratri, Duby, 81. 



vexans, Farlow, 82. 

 Pylaiseea intricata, Bruch. & Schimp., 



190. 

 Pyropappus multicaulis, DC, 110. 

 Pyroxauthiu, 47. 



Q. 



Quercus castanea, Nee (?), 156. 

 coccinea, Wang., 156. 

 confcrtifolia, Humb. & Bonpl., 



156. 

 crassifolia, Humb. & Bonpl., 156. 

 Durandi, Buckley, 156. 

 grisea, Liebm., 156. 

 macrocarpa, Michx., 156. 

 nigi'a, Linn., 156. 

 reticulata, Humb. & Bonpl., 156. 

 stellata, Willd., 156. 

 tomeutosa, Wild. (?), 156. 



? 156. 



virens. Ait., 155. 



R. 



Randia xalapensis. Mart. & Gal., 98. 

 Ray, Isaac, notice of, 457. 

 Rb'agadiolus hedypnoides, All, 110. 



Rhynchospora F 171. 



Ribes ambiguum, 193. 

 Richardsonia scabra, St. Hil., 99. 

 Ridcllia arachnoidea. Gray, 107. 

 Rivina Isevis, Linn., 147. 



