INDEX 



rei 



Pollination, 482 



Poll/augium, *339 



Polyhh'pluiris, 356 



Polycarpicae, 572 



Po/i/carjton, 499 



Polyembryony, 283 



J\il)/gala,'*60'i, 605 



Polygalaceae, 605 



Polygamy, 482 



Polvgonaceae, 567 



Poiijgnnatum, *24, 705, *685 ; leaf of, 



*6S5 ; rhizome of, *24 

 Polyyonum, *510, *511, 565 ; develoji- 



ment of the embryo-sac, *510, *511 ; 



fertilisation, *511 ; ovary, *511 

 Polypodiaceae, 453 

 PohjlMdium, 450, *453, *454 

 Polyporeae, 412 

 Polypnrus, *412, 413, 415 

 Poll/stigma, 388 

 Pulytoma, 356, 358 

 Polytoniy, 18 ; false, 18 

 Polytrichum, 436, *438, 441, 442 

 Pomeae, 612 

 Poplar, Pojjidns 



Pojmlus, '':i9, 553, *554 ; bud of, *39 

 Porogamy, 512 

 Potamngetim, 686, *687 

 Potamogetouaceae, 686 

 Potassium, assimilation of, 232 

 Potato, Solannm tuherosum 

 Potrntilla, *487, *612, 615 

 Puli'ittil/eac, 615 

 Primula, 642, *643, 643 ; hair, *11S ; 



heterostyled flowers, *501 

 Prinuilaceae, 642 

 Primulinae, 641 

 Privet, LigvsLrum ridgare 

 Procambium, 124 

 Proenibryo, 505, 513 ; of gymnospernis, 



505 

 Promeristera, 107 

 Prophase, 84 

 Prosenchynia, 107 

 Protandry, 500 



Proteids, 237 ; hydrolysis of, 237 

 Prothallium, 443, *443, 477 

 Protococcales, 358 

 Protogyny, 500 

 Protonema, 425, *426 

 Prolopliloem, 125 

 Protoplasm, 54, 175 

 Protoplasmic movements, 292 

 Protoplast. 53 ; differentiation of, 80 ; ex- 

 ternal products of, 71 ; inclusions of, 



63 

 Protoxylem, 125 

 Pruneae, 615 

 Prunus, *34, *612, 615, *616 ; bu.l-scales, 



*34 

 Psallinf,,, 00, *412, 414 



Pseudomonas, 337 



PsidmiH, 630 



PsUotn/i), 472 



Pteridophyta, 331, 442, 446, 471 ; classi- 

 fication, 446 ; fossil, 471 



Pteridospermae, 472, 540 



Pteris, *105, *r25, *443, *444 ; concentric 

 bundle, *125 ; embryo, *443 ; rhizome, 

 *444 ; root apex, *105 ; scalariform 

 vessel, *99 



Plcrocarpus, 627 



Puccinia, *405, *406. 408 



Pulmonaria, 653 



Pulvinus, 33, 321 ; of Phaseoius, *299 



Pumpkin, Cmurbita jmpo 



Punica, 631, *632 



Punlcaceae, 631 



Purple Bacteria, 337 



Purj^le Loosestrife, Lythrum salicaria 



Pycnidia, 393 



Pyrenomycetes, 392 



Pyrola, 641 



Pyrolaceae, 641 



Pyronema, 388, *396, ''397 



Pyrus, *158, *487, *612. ''613 ; periderm, 

 *158 



Pythium, 383 



Pyxidium, 519 



Quassia, *603 



Querciflora3, 546 



Querciis, *160, *550, *551, *552, 553 ; 



cork, *160 

 Quercus suber, cork, 158 

 Quillaja, 611, *613, 616 

 Quinaria, *28, 609 

 Quince, Cydonia vulgaris 

 Quinine, 240 

 Quisqualis, 629 



Raceme, 490, *492 



Racemose inflorescences, 490, *491 



Piadial walls, 103 



Radially symmetrical flower, 488 



Radicle, 168, 506 



Radish, Raplianus saticvs 



Rafflesia, 27, 587 



Rafflesiaceae, 587 



Ramalina, 419 



Ramenta, 450 



Ramondia, 662 



Rantmculaceae, 573 



Ranunculus, *36, *123, *487 



vascular bundle, *123 

 Raoidia, *]97, 682 

 Raphanus, 592 

 Raphe, 351, 476, 515 

 Raphides, 68, *68 

 Raspberry, Rubus idacus 

 Red Algae, see Rhodojihyceae 

 Reduced structures, 10 



574, *575 



