288 
a 
Passifloracee, 260 
Passiflorale Cohort, 259 
Passion-flowers, 260, 276 
Pea-blight, 160 
Peaches, 268 
Pears, 278 
Peas, 268 : 
Pea-starch, 10 (fig.) 
Peat-mosses, 191 
Pedaliacese, 257 
Peneaceer, 255 
Penicillium, 160 
Penicillium, 161 (fig.) 
Peppers, 256 
Pepperworts, 200, 205 
Pericambium, 45 
Pericarp, 151 
Peridium, 176 
Perisporiaceer, 155 
Perithecia, 164 
Peronospora, 140 
Peronosporee, 1389 
Personale Cohort, 257 
Petals, 227 
Peziza, 163 
Peziza, 161, 162 (figs.) 
Phallus, 177 
Pheosporee, 118 
Phanerogamia, 212 
Phanerozams, 212 
Phascaceze, 192 
Phaseolus, 253 
Phellogen, 54 
Philydraces, 244 
Phloém, 45 
Phloxes, 257, 276 
Phragmidium, 172 
Phycomyces, 129, - 
Phycoxanthine, 121 
Phyllome, 60, 62 
Phyllospora, 147 
Physarum, 106 (fig.) 
Physcia, 167 (fig.) 
Phytolaccacee, 256 
Pickerel-weeds, 244 
Pileus, 180 
Pilobolus, 129 
Pilularia, 205 
Pine-apples, 244 
Pines, 224 
Pine, trachefds, 26 (fig.) 
INDEX, 
Pinkworts, 262 
Pinus, 224 
Pinus, 216, 221 (figs.) 
Piperaceze, 256 
Piptocephalis, 129 
Pirus, 278 (fig.) 
Pistil, 228 
Pitcher-leaves, 256 
Pitcher-plant, Australian, 275 
Pitcher-plant, Californian, 273 
Pitcher-plants, 268, 272 
Pitchers, 63 
Pitted Vessels, 23 
Pittosporacer, 262 
Plane-trees, 255, 276 
Plantains, 258 
Plantaginaces, 258 
Plant-body, 59 
Plant-cell, 4 
Plant-food, 10, 77 
Plant-food, Compounds used, 7% 
Plant-food, Elements of, 77 
Plant-food, how obtained, 78 
Plant-food, how transported in 
the plant, 79 
Platanacese, 255 
Plocamium, 152 (fig.) 
Plowrightia, 163 
Plumbaginacesr, 258 
Plums, 278 
Plumule, 242, 251 
Podosphera, 160 
Podostemacee, 256 
Podostemads, 256 
Polemoniacesz, 257 
Polemoniale Cohort, 257 
Pollen, 62 
Pollen-cells, 213 
Pollen Mother-cells, 227 
Pollen-tube, 215 
Pollination, 234 
Pollination of Dicotyledons, 265 
Pollination of Monocotyledons, 
245-8 ; 
Pollination of Orchids, 246-8 
Polygalacer, 262 
Polygalale Cohort, 262 
Polygonaces, 256 
Polypetalee, 259 
Polypodium, 208 
Polypodium, 201, 202 (figs.) 
