3^4 



INDEX. 



Papilionacece (pa-pil-i-o-na'ce-a;), 



269 



Parasitic fungi (nutrition of). 87, 88 

 Parmelia (par-me'li-a), 31.1, 312 

 Pea, 270 

 Pea family, 269 

 Peltandra (pel-tari'dra), 205 

 Pericarp, 229, 230 

 Perigynous, 222, 223, 265, 266 

 Perisperm, 208, 210, 212 

 Perithecium (per-i-the'ci-um), 136- 



138 



Personatae (per-so-na'tae), 277 



Petaloideae (pet-a-loi'de-ae), 236 



Phyllotaxy, n 



Pistil, 197, 198, 203, 206 



Pisum (pi'sum), 270 



Plant substance, 81, 83 



Pleiochasium (plei-o-cha'si-um), 



Plum family, 266 



Pollination, 192, 193, 205, 241 



Polycarpicae (pol-y-car'pi-cae), 256 



Polypodium (pol-y-po'di-um), 155 



Polytrichum, 149 



Pomacese, 267 



Pome, 230 



Pneumatophore (pneu-mat'o-phore), 



3 2 7 



Poricidal, 230 

 Prickly lettuce, 295 

 Primrose, 224 

 Progeotropism (pro-ge-ot!ro-pism), 



108 

 Prothallium (pro-thall'i-um), 203-207 ; 



ferns, 166-170 



Protonema (pro-to ne ma), 169 

 Protoplasm (pro'to-plasm), 15-27; 



movement of, 26 

 Prunus, 267 

 Pteris (pter'is), 170 

 Puccinia (puc-cin i-a), 129, 130 

 Purple trillium, 231, 232 

 Pyrus, 269 

 Pyxidium, pyxis, 230 



Quercus (quer'cus), 252 

 Quillwort, 180-183 



Raceme, 227 



Ranunculacese (ra-nun-cu-la'ce-ae), 



256-258 



Raphe, 207, 210 

 Raspberry, 206 



Rattlesnake-weed, 280 

 Red rust, 129-132 

 Reforestation, 300-304 

 Relationships, 225, 232 

 Respiration, 94-101 

 Rhizome, 200 



Rhizopus (rhi zo-pus), 126-128 

 Rhododendron (rho-do-den'dron), 



329 



Rhoeadinae (rhoe-a din'ae), 259 



Root, 220 



Root hairs, 15-18, 39-44 



Root pressure, 50, 51 



Root-stock, 219 



Rosaceae (ro-sa'ce-ae), 265 



Rose family, 265 



Rosiflorae (ro-si-flo'rae), 265 i : 



Rubus, 266 



Runners, 219 



Sagittaria, 306, 309 



Salicaceae (sal-i-ca'ce-ae), 250 



Salix, 251 



Samara, 256 



Sand dunes, 300, 301 



Schizocarp, 230 



Schrophulariaceae (schroph-u-la-ri-a'- 



ce-se), 277 

 Sea-wrack, 217 

 Seed, 208, 210 

 Seed distribution, 292 

 Seed (germination), 1-6 

 vSeedlings, 210, 216 

 Septicidal, 230 

 Sexual organs ; vaucheria, 122124 \ 



ferns, 170-173; angiosperms, 205- 



207 



Shepherd's purse, 259 

 Silique, 230 

 Silkweed, 296, 297 

 Skunk's cabbage, 243 

 Solomon's seal, 237 

 Spadiciflorae (spa-di-ci-flo'ras), 243 

 Spadix, 227 



Spathyema (spath-y-e'ma), 243 

 Species, 231 

 Spermatozoids (sper-mat'o-zoids), 



122, 123, 142, 171, 172 

 Sperm cell, 204, 205 

 Sphagnam, 324 

 Spike, 227 

 Spikelet, 247-249 

 Spines, 219 



