280 



Phlox bifida, 229 



Phoradendron, 224 ; flavescens, 224 



Phragmidium, 21-23, 25, zj, 28 ; 

 americanum, 21, 2.2, 25, 26; disci- 

 florum, 21, 23, 25 ; montivagum, 

 23, 24-27; mucronatum, 21 ; Rosa 

 arkansana, 26 ; Rosae-arkansanae, 

 23, 25-27 ; Rosae-californicae, 22, 

 25-27 ; Rosae-setigerae, 22, 25 ; 

 speciosum, 21 ; subcorticium, 21 



Phragmites alaskana, 142 ; falcata, 

 142; laramianus, 141; oeningensis, 

 141, 142 ; phragmites, 142 



Phragmipedium, 80 



Phycomyces nitens, 143 



Phyllorhipsalis, 155 



Phymatodes exiguum, loi 



Physiological effects of radium rays, 

 105, 128 



Physostegia virginiana, 165 



Picea canadensis, 145 ; Mariana, 206 



Pieris nitida, 170 



Pilobolus crystallinus, 144 



Pinchot, G., 15, 192; personal, 130 



Pinguicula lutea, 170; vulgaris, 50 



Pinus echinata, 161, 217, 226; Elliot- 

 tii, 217, 226; palustris, 217; pun- 

 gens, 205 ; resinosa, 204 ; rigida, 

 217, 226; Strobus, 160; Taeda, 161, 

 205, 217, 221-223, 226; virginiana, 

 205, 221, 224, 226 



Piper antiquum, 119; Heerii, 119 



Piptocephalis repens, 145 



Pithecolobium, 173 



Planera, i ; longifolia, i 



Plantago lanceolata, 222 



Plant Immigrants, New Stations for, 

 79 



Plant Industry, Bureau of, 39 



Plant World, 149 



Plants, Cultivation of medicinal, 87 



Plants, East Indian economic, 149 



Plants from Florissant, Two New 

 Fossil, 184 



Plants, Mechanical Response of, 9 



Plants of Drosera, Seedlings and Ad- 

 ventitious, 201 



Plants of Mexico, The Rubber, 177 



Plant preservation, 213 



Platanus raynoldsii, 141 ; rhomboidea, 

 141 



Pleurotus ostreatus, 147 : sapidus, 147 



Pluchea foetida, 166 



Podophyllum peltatum, 171 



Poafonia divaricata, 162 (See Errata) 



Pollard, C. L., 57; personal, 194 



Polygala cruciata, 164; cymosa, 163; 



incarnata, 163; lulea, 164, 224; 



Mariana, 164; Nuttallii, 164; ra- 



mosa, 163, 225 

 Polygonum Careyi, 163 ; Hydropiper, 



224; Opelousanum, 163; viviparum, 



48 

 Polypodium vulgare, 212 

 Polyporus, 144 

 Polytrichum gracile, 52 

 Pompeii, Specimens, 236 

 Pondweeds, North American, 103 

 Ponlederia cordata, 222 

 Popular Science Monthly, 128 

 Populus heterophylla, 162 

 Porto Rico, Some Floral and Scenic 



Features of, 265 

 Potamogeton, 103; augustifolius, 207; 



bupleuroides, 103 ; confervoides, 



208 ; crispus, 208 ; lateralis, 207 ; 



lucens, 208 ; natans, 207 ; Oakesi- 



anus, 207; perfoliatus, 103, 208; 



pulcher, 161; Richardsonii, 103; 



Robbinsii, 207 ; Vaseyi, 208 

 Potentilla emarginata, 52 

 Poulton, E. B., 20 

 Practical Nature Study, Coulter and 



Patterson's (review), 120 

 Preservation, Forest, 42 

 Presque Isle, Jennings's Botanical 



Survey of (review), 261 

 Prioria, 9 ; copaifera, 8 

 Proceedings of the Club, 8, 37, 57, 



79, 99, 124, 146, 168, 233, 263 

 Protection, Forest and staple crop, 



149 

 Protection of shade trees, 212 

 Protein-Digesting Power, Experiments 



upon Drosera rotundifolia as to its, 



109 

 Prunus, 265 ; angustifolia, 163, 224 

 Pseudotsuga Douglasii, 267 

 Pteris aquilina, 186, -222 

 Pterocarya, 97 

 Pterospora andromedea, 187 

 Publications of the United States De- 

 partment of Agriculture, 192, 236 

 Puccinia graminis, 4 ; Phlei-pratensis, 



4: poculiformis, 4; violae, 55 

 Pulchella, 52 

 Pyrola rotundifolia, 187; secunda, 164 



Quercus alba, 221 ; falcata, 221-223 j 

 marylandica, 224 ; Michauxii, 71, 

 162, 223; nigra, 162, 223, 224; 

 Phellos, 221-224 



Racomitrium lanuginosum, 50 

 Radicula sylvestris, 65 



