496 



INDEX. 



CEnothera cardiophylla, Torr., 49. 

 Oligomeris glaucesceiis, Camb., o9. 

 Opuntia, 52. 

 Oxygen, specific gravity of, 228. 



P. 



Palafoxia linearis, Lag., 57. 

 Panicum capillars, Linn., var., 80. 



colonum, Linn., SO. 



dissitiflorum, Vasey, 80. 



fasciculatum, Sw., 80. 



var. niajus, 81). 



Hallii, Vasey, 80. 



lachnanthum, Torr., 80. 



paspaloides, Pers., 80. 



sanguinale, Linn., 80. 



var. ciliare, 80. 

 Pappophorura apertum, Munro, 81. 



Wrightii, Watson, 81. 

 Parallax, solar, 399. 

 Paspaluni distichvim, Linn., 79. 



publiflorum, Ruprecht, 79. 

 Passiflora foetida, Linn., 50. 

 Pattalias, 60. 



Palmeri, 60. 

 Paullinia Sonorensis, 45. 

 Pectis angustifolia, Torr., 58. 



Coulteri, Gray, 58. 



Palmeri, 58. 



prostrata, Cav., 58. 



punctata, Jacq., 58. 

 Pedilanthus macrocarpus, Benth., 



74. 

 Pellsea Seemanni, Hook., 82. 



Wrightiana, Hook., 82. 

 Pelucha, ,55. 



tritida, 55. 

 Pentaniidobenzol, on, 105- 



trichloride of, 108. 

 Perezia Palmeri, 58. 

 Perityle Calif ornica, Benth., 57. 



deltoidea, 57. 



Palmeri, 57. 

 Petalonyx linearis, Greene, 50. 

 I'eiicephyllum Schottii, Gray, 58. 

 Phacelia crenulata, Torr., 61. 



panciflora, 61. 

 Phaseolus atropurpurens, DC, 47. 



var. sericeus. Gray, 47. 



filiformis, Benth., 47. 

 Phaulothamnus spinescens, Gray, 



Philibertia linearis, Gray, .59. 

 var. heterophylla, Gray, 59. 



Philibertia Pavoni. Hemsl., 59 

 Phoradeudron Calif ornicum, Nutt., 

 73. 

 flavescens, Nutt., 73. 

 Phragmites communis, Trin., 81. 

 Physalis angulata, Linn., 64. 

 var. Linkiana, Gray, 64. 

 pubescens, Linn., 64. 

 Pithecolobium Sonorse, 49. 

 Plantago Patagonica, Jacq., 68. 

 Plants, descriptions of some new 

 species of, chiefly Califor- 

 niau, with miscellaneous 

 notes, 82. 

 Plants, upon a collection of, made 

 by Dr. E. Palmer, in 1887, 

 about Guaymas, Mexico, at 

 Muleje aud Los Angeles Bay 

 in Lower California, and on 

 the Island of San Pedro ]\Iar- 

 tin in the Gulf of California, 

 36. 

 indeterminable species, 82. 

 Polygonum Persicaria, Linn., 73. 

 Porophyllura 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. 

 Rhynchosia phaseololdes, 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. 



S. 



Salvia privoides, Benth., 68. 



San Pedro Martin, island of, coUec- 



