INDEX 



739 



im, seed, *31H 

 Pits,' 65 ; branched, 66 ; membrane, 65 



Pitted vrvs'-ls, !Ci 



Pix, burgundica, 498 ; li(|iiida, 498 



Placenta, 472, 503 



Placeutation. *504 



PUiu ;<,<-)i ;/, *429, *14 



Plagiotropie, 273 



Plankton, 351 



I'/n/tktoniella, *350 



Plantaginaceae; 668 



Plantagb *511, 668, *670 ; bundle?, 110 ; 



protogyny, *310 ; triplocaulescent, 



28 



Plantain, Pluittnu" 

 Plants, distinct from animals, 3 

 Plamodiophora, 342 

 Plasmodiiim, 54, *55, 341 

 Plasmolysis, 71, 180 

 l'lnsiiii'?'i, 382 

 Platanauceae, 593 

 Platanus, 593 



Platycerium, 251 ; heterophylly, 35 

 I'lec'tridium, *334 

 Pleiochasiuin, 51<> 

 Pleomorphism, 163 

 Plerome, 157 

 Pleurocladia, *368 

 PltnronffMO, 350 



Plumbagiuaceae, 649 <i* \ 



Poa, 530 

 Podalyrieae, 606 

 Podophylli rhizoma, 580 

 Podophyllum, 580, *581 

 Pm&upora, *394, 395 

 I'odostemaceae, 591 ; adventitious shoots, 



29 ; emergences, 107 ; hapterae. f>l ; 



roots, 48 



Polar, caps, 81 ; nuclei, 514 

 Polarity, 250 

 Polemoniaceae, 657 

 I'lilemonium, 657 

 Pollen, chamber, 486 ; grains, 475, *503, 



*513 ; sacs, 475 ; tube, 476, *481, 



*513 ; tube, rate of growth of, 255 

 Pollination, 306 

 Pollinium, 654 

 Polyangium, *337 

 Polyblepharis, *353 

 Polycarpicae, 571 

 Polyembryony, 302 

 Polygala, *6U, 615 

 Polygalaceae, 614 

 Polygonaceae, 567 ; stipules, 37 

 I'l'iii'innittinii, *f>22, 543 ; rhizome, *23, 



24 



/'in' I/Hint inn, *514, *515, *")67 

 /'(i/if/tui/iitiii, 446. *449, *450; heterophyllv. 



36 



Polyporeae, 410 

 /'"li/iii'i-i/x, *411 





Polytoma, *353 



Polytomy, 18 ; false, 18 



Polytrirliarear, conducting strands, 111 



PatytritJuan, 432, *434, 438 



Pomeae, 595 



Poplar, /'H/III/ a* 



Poppy, J'li/iin-i',- 



/'"/inltt.'i, *556 ; adventitious shoots, 20 ; 



bud, *39 



Poricidal, dehiscence, 519 

 Porogamy, *51. r ) 

 Positive, geotropism, 280 ; lieliotropism, 



275 



I'otamogeton, *523 

 Potamogetouaceae, 524 

 Potassium in plants, 187, 188 

 Potato, Solatium tubi'mxi/m 

 Potato disease, 381 

 Potentilla, *506, *594, 597 

 Potentilleae, 597 

 Prickles, 107 

 Primary members, the metamorphosis of, 



15 

 Primary meristem, 99 ; tissue, 100 ; tissues, 



distribution of, 117 

 Primitive form of membrane, 10 

 Primordial, leaf, 31 ; utricle, 54 

 1'i'i Hilda, glandular hairs, 108 ; hetero- 



styly, *311 ; siitenxix, *107 : rinensis, 



glandular hairs, *107 

 Primulaceae, 647 

 Primulinae, 647 

 Privet, Li<jnxt rum 

 Procambium strands, 113, 128 

 Products of assimilation, transfer of, 222 ; 



utilisation of, 221 

 Proembryo, 483, 516 

 Promeristem, 99 

 Promyceliuni, 403 

 Prophases, 84 

 Proaenehyma, 99 - 

 Proserpinaca, growth, 260 

 Protaudry, 310 

 Prothallium, *439, 443, *449, 453, *4">4. 



*457, 458, 460, *463, *405, 473 

 Protococcales, 335 

 Protogyuy, *310 

 Protonema, *423, 431 

 Protophloem, 114 

 Protoplasm, 53, 54, 173 ; circulation of, 



58 ; inclusions of, 73. ; movements of, 



58 ; reactions of, 57 ; rotation of, 58 

 Protoplast, 53 ; connection of, 93 ; *94 ; 



differentiation of, 73 ; movements of, 



265 



Protoxylem, 114 

 Pmneae, 598 



Pruni virgin ianae cortex, 599 

 I'm a us, *594, *598 ; ai-ium, bud scales, 



*36 ; cerasus, 511 ; cerasus, gum, 71 



98 ; spinosa, thorns, 28 



