INDEX. 



289 



Polypody, 303 



Polyponis, 179 



Polytriclium, 193 



Pond-scum, 11, 133, 134 (figs.); 



(parasites of, 139) 

 Pond-weeds, 343 

 Pontederiacese. 344 

 Poplars, 354, 376 

 Popples, 376 

 Poppywoits, 363 

 Pore fungi, 179 

 Portulacacese, 363 

 Potato, 378 

 Potato, 377 (fig.) 

 Potato-mildew, 140 

 Potato-mildew, 140, 141 (figs.) 

 Prickles, 63 

 Prickly Fungi, 179 

 Primary Meristem, 39 

 Primrose, hairs, 37 (fig.) 

 Primroses, 358, 376 

 PrlmulacesB, 358 

 Primulale Cohort, 358 

 Procambium, 49 

 Proteacese, 356 

 Proteads, 356 

 Protein Matter, 11 

 Proterandry, 337 

 Proterogyny, 337 

 Prothalllum, 195 

 Prolococcus, 113 

 Protoneiiia, 191 

 Protophyta, 105 

 Protophytos, 105 

 Protoplasm, 1 

 Protoplasmic Activity, 3 

 Prunus, flower, 365 (fig.) 

 Pleriddpliyla, 194 

 Pleridophytes, 194 

 Pteris, 303 



Pteris, tissue, 34, 48, 306 (figs.) 

 Piiccinia, 169 

 Pucclnia, 170, 171 (figs.) 

 Puflf-balls, 175, 176 

 Pumpkins, 3^8 

 Pumpkin stem, sieve-tissue, 31 



Punctum vegetationis, 31 

 Purslanes, 363 

 Pyrenomycetes, 103 



QUASSIADS, 361 

 Qulllworts, 310 

 Quinic Acid, 83 

 Quinine, 378 



Radial Bundles, 49 



Radicle, 353 



Radishes, 378 



Ranale Cohort, 363 



Ranunculacese, 363 



Rapateaceee, 344 



Raspberries, 378 



Red Rust, 173 



Red Seaweeds, 151 



Red-snow Plant, 113 



Redwoods, 334 



Regions of Vegetation, 100 



KesedacesB, 363 



Resedads, 363 



ResllacesB, 343 



Reserve Material, storing of, 81 



Reserve Material, use of, 88 



Resin-canals, 58 



Resting Spore, 115, 130 



Reticulated Veins, 300 



Reticulated Vessels, 33 



RhamnacesB. 361 



Rhamnads, 361 



Rhizolds, 183 



Rhizocarpese, 305 



Rhiznphoracese, 360 



Rhododendrons, 376 



Rliubarb crystals, 13 (fig.) 



RicciacesB, 187 



Rice, 350 



Ricinus. embryo, 253 (fig.) 



Ringed Vessels, 33 



Riiigless Ferns, 303 



Rivularia, 113 



Rock-roses, 363 



Rock weeds, 143 



Rockweeds, 144, 145, 146 (figs.) 



Root, 60. 63 



Root-hairs. 37, 63 



Root-pressure, 75 



Root stocks, 63 



Rosacea;. 860 



Rosale Cohort, 360 



Roses, 376 



Roseworts, 360 



RoxburghlaceiE, 344 



