INDEX 
3 79 
Prothallial cushion, 22 
Prothallus, 240 
Protoascales, 199 
Protobasidiomycetes, 217 
Protococcales, 186 
Protonema, 20, 232, 235, 240 
Protophloem, 90, 104 
Protophyta, 174 
Protoplasm, 38, 39 
Protoplasmic cell contents, 40, 41 
Protoxylem, 90, 104 
Prunum N. F., 288 
Prunus, 286 
amygdalus car. amara, 289 
cerasus, 59 
domestica, 288, 289 
serotina, 286 
virginiana, 286 
Pseudobulbs, 99 
Pseudomonas radicicola, 95 
Pseudopodia, 185 
Pseudotsuga mucronata, 244 
Ptelea, 298, 299 
trifoliata, 299 
Pteridophyta, 4, 236 
Pterocarpus marsupium, 292 ' 
Puccinia Graminis, 218 
Puff Balls, 227 
Pulsatilla, 273 
Pt»lvinus, 128 
Pumpkin, 347 
Punica Granatum, 320 
Punicaceae, 319 
Purified Siliceous Earth, 190 
Putamen, 161 
Pyrenoid, 188 
Pyrenomycetes, 213 
Pyrethri Flores, 354 
Pyrethrum, 353 
Pyrola, 326 
Pyrus malus, 288 
Pyxis, 163 
Quassia amara, 299 
Quercus N. F., 265 
Quercus alba, 265 
infectoria, 265, 266 
occidentaiis, 265 
Suber, 265 
Quillaj aN. F., 286 
Saponaria, 286, 288 
Raceme, 138 
Radicle, 85 
Ranales, 272 
Ranunculaceae, 272 
Ranunculus, 273 
Raphe, rss, 169 
Raphides, 55 
Receptacle, 143 
Receptacles of Fucus, 194 
Red Pepper, 338 
Regma, 163 
Rejuvenescence, 42 
Reproduction, asexual, 42 
defined, 42 
sexual, 42 
vegetative, 42 
Resin, micro-chemic test for, 61 
Resina, 244 
Resins, 60 
Resinogenous layer, 60 
Reserve cellulose, 66 
parenchyma, 69 
starches, 48, 49 
Respiration, 116 
Rhamnales, 307 
Rhamnase, 64 
Rhamnose, 64 
Rhamnus cathartica, 307 
Frangula, 64, 307 
# Purshiana, 307, 308 
Rheum officinale, 270 
palmatum, 270 
Rhinanthus, 340 
Rhizoids, 20, 191, 231, 235 
Rhizome, 100 
Rhizopus, 198 
nigricans, 196 
Rhododendron, 150, 326 
