600 



INDEX 



All numbers refer to pages, h 



Pine grove illustrating mutual ac- 

 commodation, 453, 454 

 Pine Order, 393, 397, 426, 427 

 Pines, 550 

 Pineapple, 88, 103, 121, 124, 233; 



fiber, 232; gall, 272 

 Pineapple-cloth, 234 

 Pineapple Family, 397 : pineapple, 



103; southern moss, 234 

 Pin-mold, 495, 496, 497 

 Pin-mold Family: pin-mold, 496, 



497 

 Pin-mold Fungi, 495 

 Pink Family, 398 

 Pinnate, 341; nervation, 352 

 Pinnately, compound, 341; nerved, 



341 

 Pinus sylveslTis, Scotch Pine 

 PiperacecB, Pepper Family 

 Piperales, Pepper Order 

 Piper nigrum, Black Pepper 

 Piping, 287 



Pistil, 11, 14, 308, 319, 345; com- 

 pound, 347; simple, 347 

 Pistillate flowers, 347 

 Pistil, parts of, ovary, 345; ovule, 



346; placenta, 346; stigma, 345; 



style, 345 

 Pisum sativum, Pea 

 Pith, 250, 254 

 Pith-rays, 250, 253, 254 

 Pivotal place of plants in economy 



of nature, 574 

 Placenta, 346; axile, 355; dorsal, 



346; parietal, 362; ventral, 346 

 Plaiting, 223, 235 

 Planetesimal hypothesis, 465 

 Plane-tree, 267, 2(;8 

 Plane-tree Family, 399: American 



sycamore, 267 

 Planks, 270 



Plnnlnriiii(icc(c, Plantain Family 

 PliDiliifiiiKiles, Plantain Order 

 Plantain l^amily, 401 

 Plantain Order,' 401 

 Plant, formulas, 352; groups, 35.S; 



names, early, 3 

 Plant life ami human life, 575 

 Plants, annual, 11; biennial, 52; 



compass, 73; diivcious, 360; 



habit of, 359; mona_'cious, 371; 



ocreate, 372; perennial, 58; 



avy type indicating illustrations. 



polygamous, 347; shrub, 36; 

 tree, 36; glabrous, 343; pubes- 

 cent, 343 

 Plants and animals defined, 573, 



574 

 Plants, how named, 2; in general, 

 574; our dependence upon, 1; 

 needs of, 2 

 Plant's place in Nature, 561 

 Plants poisonous, to eat, 192; to 



handle, 217 

 Plant segment, 324 

 Platanaceoe, Plane-tree Family 

 Platanus occidentalis, American 



Sycamore 

 Pleurococcacew, \\''all-stain Algae 

 Pleuroccus vulgaris. Wall-stain 



Alga 

 Plicate estivation, 381 

 Plicate-convolute a-stivation, 381 

 Plum, 8S, 90, 121, 124, 364; wood, 



357, 263 

 Plumule, 48, 317, 318, 319, 546, 



556 

 Podded Jute, 232 



Poison, Dogwood, see Poison- 

 sumac; Hemlock, 194, 195, 209, 

 370, 410, 411 

 Poison-ivy, 217, 218, 219 

 Poison-oak, see Poison-ivy * 

 Poisonous bark, 190; drugs, 176; 

 flowers, 205, 208; fruits and 

 seeds, 209; herbage, 199; honey, 

 205, 207, 20S; mushrooms. 111, 

 213; juice, 357; plants, 112, 162, 

 163, 192, 219; substances, 302; 

 underground parts, 192; volatile 

 oils, 177 

 Poisons, 162; as by-]iroducf s, 192 

 Poison-sumac, 217, 220 

 Poke, Indian, 390, 424, 425 

 Pokcweed, 195, 196, 20s, 209 

 Pokeweed I<\imilv, 398: pokeweed, 



195, 196 

 Polemoninlis, Phlox Order 

 Poles, 215, 270 

 Pollen, 12, 14, 319; grain, 550, 



551, 556 

 Polli'n-sacs, :>25, 32ti 

 Pollen-lube, 551, 555, 556 

 Pollination, 557 

 Polygamous flowers, 347, 354 



