INDEX 



377 



Pseudolarix amabilis. Fig. 43; 191 

 Pseudotsiiga, 191, 196; P. taxi folia, 



Fig. 43 

 Psilophytales, 85, 87 

 Psilophyton, 85, 87, 88 

 Psilotales, 85, 88 

 Psilotiim, 13, 22, 25, 29, 81, 85, 86, 87, 



88, 98, 102, 104, 169, 170; Fig. 5; P. 



triqiietritm, Fig. 20 

 Pteridophyta, 326 

 Pteridospermae, 185 

 Pteridum aqiiilinwn, 146 

 Pteris cretica, 158; P. senatula. Fig. 35; 



144 

 Pteropsida, 171 

 Pyrus, 248 



quadrants, 93 



Radforth, 186, 188 



Radiila, 14; Fig. 2; R. complanata, 



Fig. 1 

 Rafflesia, 278 

 Ranales, 245 

 Randall, 293 



Randolph, 270, 272, 274, 276, 293 

 Ranunculaceae, 245 

 Ranunculus ficaria, 262, 264; Fig. 67 

 Rao, 227, 228 



Rappaport, 310, 312, 313, 315 

 ratio of surface to bulk, 26, 28, 31 

 Rauch, 281 

 reaction system, 6, 33, 82, 83, 91, 144, 



166, 167, 238, 250, 319, 330, 331 

 Rehoulia, 68 



recapitulation, 162, 164, 333 

 reduced embryos, 268, 278 

 reduction 162, 163, 172, 176 

 reduction series, 83 

 Reed, 49 

 Reeder, 270, 276 

 Reeve, 238 



regeneration, 159, 163 

 regulation, 9, 82, 83, 166, 294, 311, 316, 



331 

 Rendle, 257 

 Renner, 312 

 Reseda lutea. Fig. 60 

 Resedaceae, 244, 245 

 Reynolds, 176 

 Reznik, 276 

 Rhinantheae, 282 



rhizophore, 110, 112, 114, 123 



Rhodophyllis, 60 



Rlwdotypos kerrioides, 305 



Rhodymenia, 60 



Rhynia, 74, 85, 87, 88, 325, 326 



Rihes aureum. Fig. 58; R. divaricatum. 



Fig. 58 

 Riccia, 64, 70, 83; R. glauca, Fig. 14 

 Ricciocarpus, 83 

 Richards, 325 

 Rick, 293 



Riella, 72, 84; R. americana, 11 

 Rietsema, 315 

 Rijven, 307, 310 

 Riley, 325 



Robertson, 210, 212 

 Robyns, 289 

 Rocen, 297 

 root, 93, 101, 102, 132, 135, 170, 174,236, 



238, 240, 274, 281; initials of, 193 

 Rosa, 248 



Rosaceae, 244, 245, 247, 248 

 Rosales, 245 

 Rose, 251 

 Rosenvinge, 18 



rosette ceUs, 191, 195, 210,212 

 rosette embryos, 195, 196 

 Rostafinski, 150 

 Rostowzew, 133 

 Rothia trifoliata. Fig. 63 

 Rubus, 248 



Rudbeckia speciosa, 287; Fig. 79 

 rudimentary organs, 170 

 rudiments, 164 

 Ruhland, 77 

 Ruta, 242 



Sachet, 311, 312 



Sachs, 223 



Sadebeck, 90, 159 



Sagina, Fig. 55; S. procumbens, 9, Fig. 1 



Sa^ittaria, 240, 265 ; 5". graminia. Fig. 



81 

 Sahni, 175, 210 

 Salvia splendens, 257 

 Salvinia, 155, 156, 169, 170 

 Sampson, 102 

 Sanday, 215 



Sanders, 301, 305, 306, 307, 310 

 Santalaceae, 281 

 saprophytes, 278, 279, 285, 286 

 Sar codes sanguinea, 227, 286 



