562 



INDEX TO VOLUME LIV 



[DECEMBER 



P 



Pace, Lula 306 



Paleobotanical notes 438 



Palms 168 



Pantanelli, E., work of 434 



Papaver, color-inhibitors of 120 



Paradaniellia 348 



Paraguay, plants of 169 



Paris, G., work of 434 



Parnassia, morphology of 306 



Parrya Huddelliana 139 



Paulsen, 0., work of 346 



Pax, Ferdinand, work of 427 



Pearl, R., work of 264 



Pearson, H. H. W., work of 255 . 



Penstemon attenuatus 146; attenuatus 



varians 146; brevis 417; confertus 

 145; erianthera Whitedii 148; laxus 

 147; linarioides seorsus 147; procerus 

 146 



Peranema 348 



Pericystis alvei 440 



Peridinium 346 



Perithecium of Polystigma 556 



Perkins, Janet, work of 427 



Permeability 263 



Pfeffer, W., work of 171, 436 



Pflanzenreich 427 



Phacelia firmomarginata 143 



Phajus, embryo sac of 375 



Phanerophlebia 170 



Philippine plants 169 



Phlox Ion gi folia filiofolia 143 



Phoradendron 439 



Phyllanthus leptobotryosus 241 



Phytomyxaceae 86 



Pinus, Banksiana, anatomy of 273; 



lateral archegonia in 556; rigida, 



growth studies 386 

 Platan us occidentalis, anatomy of 295 

 Platytinospora 427 

 Pluteolus 170 

 Poaceae 429 

 Podocarpeae 254 



Podocarpineae, root nodules of 552 

 Podocarpus 255 

 Podozamites distans 555 

 Pogonia, embryo sac of 379 

 Polygonum 170; emaciatum 138 

 Polyporaceae 170 

 Polysiphonia, generations of 164 

 Polystigma, perithecium of 556 

 Polytrichum, cytology of 429 

 Populus, balsamifera, anatomy of 281; 



deltoides, anatomy of 282 

 Practical botany 75 

 Prankerd, Theodora L., work of 548 

 Pringsheim, Hans, work of 339 

 Pritchardiopsis 168 



Prunus, pumila, anatomy of 271; virgini- 



ana, anatomy of 287 

 Psaronius, roots of 81 

 Psedera quinquefolia, anatomy of 290 

 Pseudobotrys 170 

 Psygmophyllum 438 

 Ptelea trifoliata, anatomy of 288 

 Pteridium, sieve tubes of 349 

 Pteridocalyx 347 

 Puccinia Malvacearum 431 

 Pyronema confluens, development of 83 



Q 



Quercus velutina, anatomy of 273 



R 



Rankin, W. H., work of 346 

 Ranunculaceae, embryogeny of 264 

 Reichel, J., work of 345 

 Rendle, A. B., work of 346 

 Respiration, effect of temperature on 87 

 Reviews: Bergen and Caldwell's "Prac- 

 tical botany" 75; Bowman's "Forest 

 physiography" 166; Coulter, Barnes, 

 and Cowles' "Textbook of botany" 

 73; Engler's "Das Pflanzenreich" 

 427; Hall and Case's "Yosemite 

 flora" 167; Hancock's "Nature 

 sketches" 76; Lister's "Mycetozoa" 

 428; Lotsy's "Stammesgeschichte" 

 253; Nathanson's "Allgemeine Bo- 

 tanik" 540; Schneider's " Illustriertes 

 Handbuch" 428; Wood's "Natal 



plants" 540 

 Rhus toxicodendron, anatomy of 291 



Rigg, George B. 164 



Rigiostachys quassiaefolia 235 



Ripke, O., work of 340, 341 



Ritter, G., work of 78 



Ritter, Herman von Guttenberg, work 



of 171 

 Robbins, W. W., work of 554 

 Rolfe, R. A., work of 346 

 Root habits of desert plants 174 

 Root nodules of Podocarpineae 552 

 Root-form, inheritance of 259 

 Roots of Psaronius 81 

 Rose, J. N., work of 169 

 Rose, R. Catlin 49 

 Rosendahl, F., work of 541 

 Rosenstock, E., work of 346 



Roussy, A., work of 344 

 Rubsaamen, E. H., work of 434 

 Rust, mallow 431; cytology of 436 

 Rydberg, P. A., work of 346 



s 



Sabulia 438 



Saito, K., work of 345 



