INDEX 
Pileus, 404 
Piliferous layer, 152 
Pilocarpinzee Hydrochloridum, 546 
Nitras, 546 
Pilocarpus, 546 
Pilocarpus, 545 
Pilocarpus Faborandi, 546 
microphyllus, 546 
neighboring-cells of leaf epidermis, 
252 
Pimenta, 574 
Pimenta acris, 574 
officinalis, 574 
Pimiento, 598 
Pimpinella, 577 
Pimpinella Anisum, 576 
magna, 577 
Saxifraga, 577 
Pinaceae, 465 
Pine, 465 
Austrian, 250, 447, 461, 453 
Drops, 580 
Family, 465 
inflorescences of, 464 
leaf of, 446 
pollen of, 282 
Scotch, 448 
stem, 445 
tar, 465 
White, 444 
wood of, 212 
Pineapple, enzyme in, 103 
fruit of, 307 
Pinenes, 97 
Pinguicula, 640 
vulgaris, 640, 641 
Pinites succinifer, 466 
Pink Family, 273, 514 
Pink Root, 583, 585 
Pinna, 55, 433 
Pinnularia, Figs. of, 349, 352 
Pinnule, 55, 433 
Pinus, 465 
austriaca, 447 
maritima, 466 
montana, 466 
nigra, leaf of, 250 
palustris, 465 
Strobus, 401, 444, 465 
777 
Pinus, sylvestris, 448 
Pinus Alba, N.F., 465 
Pinweeds, 509 
Piper, 305, 499 
Piper angustifolium, 499 
Cubeba, 498, 499 
longum, 499 
methysticum, 499 
nigrum, 498, 499 
officinarum, 499 
Piperacea, 499 
formation of endosperm and peri- 
sperm in, 314 
Piperales, 499 
Pipsissewa, 579 
Piscidia, 540 
Piscidia Erythrina, 540 
Pistachio, 552 
Pistacia vera, 552 
Lentiscus, 552 
Pistil, 285, 473 
bicarpellary, 285 
compound, 285 
monocarpellary, 285 
polycarpellary, 285 
system, 283 
tricarpellary, 285 
Pitcher plants, 629 
Pith, 165, 166 
Pits, 108 
bordered, 136 
Pix Burgundica, 466 
Canadensis, 466 
Juniperi, 466 
Pini, 465 
Placenta, defined, 287 
Placentation, 287, 288 
Plankton, 617 
Planococcus, 371 
Planosarcina, 371 
Plant, acaulescent, 186 
anemophilous, 291 
annual, 162 
aquatic, 164 
associations, 616 
axis, 6 
biennial, 163 — 
breeding, 3 
caulescent, 186 
