496 



INDEX. 



CEnothera cardiophylla, Torr., 49. 

 Oligomeris glaucescens, Camb., 39. 

 Opuntia, 52. 

 Oxygen, s|)ecific gravity of, 228. 



Palafoxia linearis, Lag., 57. 

 Panicum capillare, Linn., var., 80. 



colonum, Linn., 80. 



dissitiflorum, Vasey, 80. 



fasciculatum, Sw., 80. 



var. niajus, 80. 



Hallii, Vasey, 80. 



lachnanthum, Torr., 80. 



paspaloides, Pers., SO. 



sanguinale, Linn., 80. 



var. ciliare, 80. 

 Pappophorurn aperturn, Munro, 81. 



Wrightii, Watson, 81. 

 Parallax, solar, 399. 

 Paspalum distichum, Linn., 79. 



publiflorum, Ruprecht, 79. 

 Passiflora foetida, Linn., 50. 

 Pattalias, 60. 



Palmeri, 60. 

 Paulliuia Sonorensis, 45. 

 Pectis angustifolia, Torr., 58. 



Conlteri, Gray, 58. 



Palmeri, 58. 



prostrata, Cav., 58. 



punctata, Jacq., 58. 

 Pedilanthus macrocarpus, Benth., 



74. 

 Pellsea Seemanni, Hook., 82. 



Wrightiana, Hook., 82. 

 Pelucha, 55. 



trifida, 55. 

 Pentaniidobenzol, on, 105- 



trichloride of, 108. 

 Perezia Palmeri, 58. 

 Perityle Calif or nica, Benth., 57. 



deltoidea, 57. 



Palmeri, 57. 

 Petalonyx linearis, Greene, 50. 

 l'eucephyllum Schottii, Gray, 58. 

 Phacelia crenulata, Torr., 61. 



pauciflora, 61. 

 Phaseolus atropurpurens, DC, 47. 



var. sericeus, Gray, 47. 



filiform is, Benth., 47. 

 Phaulothamnus spinescens, Gray, 



73 

 Philibertia linearis, Gray, 59. 



var. heterophylla, Gray, 59. 



Philibertia Pavoni, Hemsl., 59 

 Phoradendron Californicum, Nutt., 

 73. 

 flavescens, Nutt., 73. 

 Phragmites communis, Trin., 81. 

 Physalis angulata, Linn., 64. 

 var. Linkiana, Gray, 64. 

 pubescens, Linn., 64. 

 Pithecolobium Sonorae, 49. 

 Plantago Patagonica, Jacq., 6S. 

 Plants, descriptions of some new 

 species of, chiefly Califor- 

 nian, with miscellaneous 

 - notes, 82. 

 Plants, upon a collection of, made 

 by Dr. E. Palmer, in 1887, 

 about Guaymas, Mexico, at 

 Muleje and Los Angeles Bay 

 in Lower California, and on 

 the Island of San Pedro Mar- 

 tin in the Gulf of California, 

 36. 

 indeterminable species, 82. 

 Polygonum Persicaria, Linn., 73. 

 Porophyllum crassifolium, 57. 

 gracile, Benth., 57. 

 Seemanni, Schultz Bip., 57. 

 Portlandia pterosperma, 52. 

 Portulaca oleracea, Linn., 40. 

 Potamogeton pectinatus, Linn., 79. 

 Potassic 8 chlorpyromucate, 327. 

 Prosopis articulata, 48. 



heterophylla, Benth., 48. 

 Palmeri, 48. 

 Psilactis Coulteri, Gray, 55. 



R. 



Randia obcordata, 53. 



Thurberi, 53. 

 Rhizophora Mangle, Linn., 49. 

 Rhynehosia phaseoloides, DC, 47. 

 Riddellia Cooperi, Gray 57. 

 Rothrockia cordifolia, Gray, 61. 

 Ruellia tuberosa, 66. 

 Rumford Medals, presentation of, 

 to Prof. Albert A. Michel- 

 son, 380, 403, 427. 

 Rumford Premium, 488. 



Salvia privoides, Benth., 68. 



San Pedro Martin, island of, collec- 



