INDEX 



545 



Ring of sporangium, 310 



Ripe seed (Pine), 258 



Robinia, thyloses of, 75 



Root of Dicotyledons, 148 ; of 

 Monocotyledons, 180 ; of Pine, 

 247 ; of "Taxus, 250 ; of Selagi- 

 nella, 268 ; of Lycopodium, 283 ; 

 of Fern, 303 ; of Equisetum, 337 



Root, apex of, 157, 183, 251, 306, 

 &c. 



Root-cap, 159, 185, 251, 307, &c. 



Root-hairs, 33, 150, 182, 250, &c. 



Root, secondary thickening of, 152, 

 249 



Rosa, pith of, 97 



Rose Campion, flower of, 189 



Rotation of protoplasm, 33, 414 



Rubus, pith of, 97 



Rudimentary gynoecium and sta- 

 mens, 189 



Ruscus, 37 



Russula, 500 



Rust of Wheat, 462 



Rye, Ergot of, 481 



Salt solution, 3, 26, 29, 31 



Saxtfraga, chalk -glands of, 142 



Scalariform tracheides, 267, 297 



Scales of bulb, Hyacinth, 167 



Scale-hairs, 146 



Scale-leaves, Pine, 229 



Scape of Hyacinth, 167 



Schulze's solution, see Chlor-zinc- 

 iodine 



Schulze's macerating fluid, 104 



Scilla (Blue- bell), flower of, 193 



Sclerenchyma, of Sunflower, 67, 72 ; 

 of Elm, 95 ; of Cucurbita, 113 ; 

 distribution of, 140 ; of Maize, 

 161 ; in leaf, 173 ; of Lycopodium, 

 276; of Ferns, 289, 293, 296, 

 298 ; of Moss, 343 



Sclcrotium, 481 



Scutellum, 227 



Secondary thickening, of stem, 97, 

 169, 230 ; of root, 153, 248 ; of 

 Monocotyledons, 169 ; of Lamin- 

 aria, 407 



Sedum, leaf of, 136 



Seed coat, 215 



Seed, of Dicotyledons, 215 ; of Pine, 

 258 



Segmental cells, 302, 307 



Selaginella, 261, &c. 



Seta, 342, 350, &c. 



Sexual organs, of Ferns, 313 ; of 

 Mosses, 347 ; of Liverworts, 369, 

 &c. ; of Charace3e,410; of Floridea?, 

 387; ofFucus, 301; of Vaucheria, 

 431 ; of Volwx, 439 ; Lichens, 

 479 ; of Pythium, 494 



Sieve-plates, see sieve-tubes 



Sieve-tubes, Sunflower, 68, 72 ; of 

 Elm, 102 ; of Cucurbita, 113 ; of 

 Tilia, 116; of Maize, 164; of 

 Pine, 236, 242 ; of Ferns, 295, 

 &c., of Equisetum, 384 



Silica-skeletons, 90, 333 



Silicified cell-walls, 90 



Siphonese, 429 



Soft-bast, see Phloem 



Soredia, 476 



Sori, 309 



Spawn of Mushroom, 453 



Special-mother-cells, 204 



Spermatia, 480, 388 



Spermatozoids of Fern, 314 ; of 

 Moss, 347 ; of Fucus, 403 ; of 

 Chara, 415 ; of Faucheria, 432, 

 &c. 



Spermogonia, 467, 479 



Sphacelia, 483 



Sphagnum, 357 



Sphere-crystals of inulin, 120 



Spindle-threads, 85 



Spiral vessels, of Sunflower, 74 ; of 

 Elm, 103 



Spirogyra, 27, 442 



Spongy parenchyma, 127, 132, &c. 



Sporangium of Selaginella, 270 ; of 

 Lycopodium, 284 ; of Fern, 309 ; 

 of Pilularia, 322 ; of Equisetum, 

 338 ; of Laminaria, 408 ; of 

 Mucor, 498 ; of Sporodinia, 501 



Spores, of Selaginella, 271 ; of 

 Lycopodium, 284 ; of Fern, 309 ; 

 of Equisetum, ,339 ; of Moss, 353 ; 

 of Marchantia, 376 ; of Mush- 

 room, 459 ; of Peziza, 471 ; of 

 Lichens, 477 ; of Claviceps, 483 ; 

 of Mucor, 498 



N N 



