INDEX. 



353 



Protoplasm, 1 



Protoplasm and plant-cells, 1 

 Prunus, 277 

 Pteridophyta, 318 

 Pteris, 335 ' 

 Puccmia, 191, 195 

 Puff-balls, 199 

 Putrefaction, 139 

 Pyrenin, 3 

 Pyrenomyceteee, 180 

 Pyxis, 316 



Quassiads, 339 

 Quillworts, 334 

 Quinine, 389 



Raceme, 303 



Radial Ijundle, 55 



Radicle. 375, 318 



Ramularia, 198 



Ranales 336 



Ranunculacese, 336 



Rapateaceac, 331 



Reagents, 4 



Red-rust, 193 



Red seaweeds, 170 



Red snow plant, 135 



Redwood, 348, 349 



Relationship of the classes and 



branches, 119 

 Reproduction, 113 

 Resedacese, 337 

 Reserve material, storing, 81 

 Reserve material, use of, 81 

 Resin-reservoirs, 63 

 RestiacesB, 335 

 Resting-spore, 133, 146, 150, 155, 



163 

 Results of cell-union, 114 

 Reticularia, 133 

 RhamnaceiB, 337 

 Rhizophoraceae, 335 

 Rhododendrons, 387 

 Rhodophycese, 168, 170 

 Rice, 373 

 Ricinus, 374 

 Ringless Ferns, 333 

 Rivularia, 137 

 Roclc-roses, 337 

 Rockweeds, 163 

 Root, 66, 69, 394 

 Root-hairs, 43, 71, 394 

 Jioot-pressure, 104 



Roots, aerial, 69 

 Roots of parasites, 69 

 Roots, subterranean, 69 

 Root-stocl::, 68, 393 

 Root-tubercles, 79 

 Rosaceae, 335 

 Resales, 334 

 Roses, 388 

 Roseworts, 335 

 Rubiacese, 339 

 Rubiales, 339 

 Rudimentary tissue, 30 

 Rueworts, 339 

 Runners, 68 

 Rushes, 334 

 Rusts, 191 

 Rutaceae, 339 

 Rye, 373 



Sabiaceae, 338 

 Saccliaromyces, 189 

 Saccharomycetacese, 189 

 Sac-fungi, 174 

 Sac-spores, 174 

 Salicaceae, 338 

 Salvadoraceae, 333 

 Samara, 316 

 Samydacese, 337 

 Sandal worts, 338 

 Santalacege, 338 

 Sapindaceee, 338 

 Sapindales, 338 

 Sapotacese, 333 

 Saprolegnia, 156 

 Saprolegniacese, 151 

 Sargasso Sea, 166 

 Sargassum, 166 

 Sarracenia, 384 

 Sarraceniacese, 337 

 SaxifragacesB, 335 

 Saxifrages, 335 

 Scalariform vessels, 83 

 Scale-mosses, 211 

 Scales, 68, 70 

 Scenedesmus, 135 

 Schizophycese, 125 

 Schulze's maceration, 35 

 Scitaminese, 325 

 Sclerenchyma, 33 

 Scorpioid dichotomy, 71 

 Scotch Pine, 348 

 Scouring Rush, 330 

 Screw-pines, 334 



