876 
Pollen, 19, 258, 836 
— cells, 19, 259 
— development of, 258 
— grains, 19 
— sporangia, 791 
— spores, 371 
— structure of, 260 
-— tube, 264 
Pollination, 20, 841 
Pollinia, 260 
Polyadelphous, 256, 356 
Polycotyledonous, 344 
Polygamous, 241 
Polygonal cell, 38 
Polyhedral parenchyma, 48 
Polymerous, 279 
Polypetalous, 232, 
Polyphyllous, 225 
Polysepalous 225 
Polystemenous, 253 
Polythalamic, 322 
Pome, 321 
Pore, 261, 389 
Pore cells, 61 
Porous cells, 42 
dehiscence, 
308 
Position of ovules, 326 
— — stamens, 253 
Positive geotropism, 862 
— heliotropism, 862 
Preefloration, 157, 218 
Prefoliation, 155, 218 
Premorse leaf, 169 
— root, 119, 139 
Prepotent, 845 
Prickles, 66 
Primary axis, 197 
— meristem, 793 
— root, 125 
Primine, 329, 839 
Primordial cell, 22, 328 
— leaves, 146, 853 
— utricle, 22, 26 
Prismatic cell, 39 
233 
= 252, 
302, 
— leaf, 174 
Procambium, 126 
Process of germination, | 
853 
Procumbent, 114 
Production of hybrids, 844 
Pro-embryo, 831, 839 
Progressive, 77, 210 
Proliferous, 111 
Prolification, 352 
Prosenchyma, 49 
— varieties of, 49 
Prosenchymatous cells, 39, | 
785 
Prostrate, 114 
Protandrous, 843 
Proteid grains, 36 
Proteine crystals, 36 
Prothallium, 364, 366, 367 
Prothallus, 364 
Protista, 4 
Protococcus, 6, 771 
Protogynous, 844 
Protonema, 375, 377, 832 
Protoplasm, 22, 24, 771 
— movements of, 25 
Protruding, 256 
Pseud-axis, 109 
Pseudo-bulb, 114 
Pseudocarp, 204, 296, 322 
Pseudo-embryo, 834 
Pseudo parenchyma, 49 
Puccinia, 380 
Puffball, 779 
Pulyinus, 181 
Punctum vegetationis, 96, 
792, 795 
Putamen, 299 
Pyenidia, 389 
Pyramidal leaf, 174 
Pyrene, 299 
Pyxis, 316, 320 
QUADRIFID, 288 
Quadrifoliate, 177 
Quadrifureate, 250 
Quadrilocular, 245, 276 
Quadrinate, 177 
Quadriovulate, 325 
Quadripartite, 289 
Quadrispermous, 334 
Quaternary, 354 
Quinary, 221, 354 
Quinate, 177 
Quincuncial, 151, 220, 221, 
Quinquecostate, 160 
Quinquedentate, 225 
Quinquefid, 165, 167, 225, 
288 
Quinquefoliate, 177 
Quinquelocular, 276 
Quinqueoyulate, 325 
Quinquepartite, 225 
Quinquespermous, 334 
Quintuple-ribbed, 160 
Quintupli-costate, 160 
RACEME, 204 
Racemose, 110 
—- corymb, 205 
— cyme, 213 
Rachis, 162, 180, 198 
Radiated veined, 160 
Radical leaves, 146 
—- peduncle, 198 
Radicle, 12, 342, 343 
Ramal leaves, 146 
Ramenta, 65 
Ramentaceous hairs, 65 
Ramification, 108 
Ramified cells, 43 
Raphe, 332 
Raphian arillus, 339 
Raphides, 33 
Raphiditerous, 35 
Raphis-bearing, 35 
Rapidity of cell-production, 
779 
Receptacle, 17, 198, 265, 
292, 381, 396 
GENERAL AND GLOSSARIAL -INDEX TO 
Receptacles of secretion, 
72, 789 , 
Reclinate, 155, 345 - av 
— ovule, 326 , 
Rectiserial, 153 
Recurved, 243 
Red snow plant, 6, 771 
Reduplicate, 219, 220 
Reflexed, 225, 232 
Regma, 317 
Regressive, 210 
Regular, 225, 227, 232 
— buds, 110 
— flower, 355 
— monopetalous corolla, 
233 
— parenchyma, 48, 80 
— polypetalous corolla, 
233 
Rejuvenescence, 777 
Reliquize, 141 
Renewal of cell, 777 
Reniform, 173 
Replum, 277, 306, 317 
Reproduction of :— 
— Algee, 830 
— Angiospermia, 839 
— Characee, 831 
— Cormophytes, 831 
— Cryptogamia, 829 
— Equisetacez, 834 
—— Filices, 834 
— Gymnospermia, 836 
— Hepaticacez, 832 
— Lycopodiacez, 834 
— Marsileacez, 832 
— Musci, 832 
— Phanerogamia, 836 
— Rhizocarpez, 832 
— Selaginellacez, 833 
— Thallophytes, 829 
Reproductive organs of :— 
— — Algee, 392 
— — Characez, 390 
— — Cormophytes, 364 
— — Equisetace, 367 
— — Filices, 365 
— — Fungi, 385 
— — Hepaticacee, 375 
— —— Lichenes, 388 
— -— Lycopodiacez, 368 
— — Marsileacee, 370 
— — Musci, 372 
— — Selaginellacez, 369 
— — Thallophytes, 378 
Respiration, 4, 801, 823 
Resting spores, 830 
Reticulated cells, 46 
— veined, 159 
— venation, 159, 162 
— vessels, 55 
Retinacula, 260 
Retrograde metamorphosis, 
352 
Retroserrate, 164 
Retuse, 169 
Revolute, 156 
Revolving nutation, 860 
Rhizocarpee, 371, 832 
