INDEX. 



857 



Saxifragaceae, 566, 584. 

 Saxifragine ae, 584. 

 Scalariform vessels, 27, 98, 



355. 



Scale-leaves, 193. 



Schizaeaceae, 341, 360. 



Schizandrese, 579. 



Schizocarp, 537, 538. 



Schizomycetes, 214. 



Schizosporeae, 214. 



Schultz's solution, 67. 



Schvvendener's Lichen- 

 - theory, 262. 



Scirpus, 548. 



Scitaminese, 555. 



Sclerantheae, 583. 



Scleranthus, 569. 



Sclerenchyma, 35, 104, 106. 



Sclerotium, 239, 259, 277. 



Scolecite, 262. 



Scorpioid cyme, 160, 522. 



Scorpioid dichotomy, 157. 



Scorzonera, iii. 



Scrophularia, 99. 



Scrophulariaceae, 580. 



Scutellum, 144, 541. 



Scutiform leaf, 389. 



Secondary cortex, 573. 



Secondary products of me- 

 tastasis, 628. 



Secondary roots, 142. 



Secondary wood, 574. 



Secundine, 501. 



Seed, 423, 432, 518, 540. 



Segmentation of the apical 

 cell, 118. 



Selagineae, 580. 



Selaginella, 47, 78, 104, 403, 



405> 409* 410^ 414* 415* 



416, 417, 419. 

 Selaginelleae, 416. 

 Sensitiveness, 651, 776, 781. 

 Sepal, 470. 



Septicidal dehiscence, 538. 

 Septifragal dehiscence, 538. 

 Serpentariese, 578. 

 Seta, 294, 324, 330, 471. 

 Sexual affinity, 818. 

 Sexual generation, 203, 335, 



400, 432, 805. 

 Sexual reproduction, Pheno- 



nomena of, 801. 

 Sexual reproductive cells, 



203. 426, 802. 

 Sheath-teelh, 370. 

 Shells,' Formation of, in the 



cell-wall, 33, 

 Shield, 284. 

 Shoot, 136, 194. 

 Sieve-cells, 23. 

 Sieve-discs, 25, loi. 

 Sieve-tubes, loi, 418. 

 Sigillaria, 420. 

 Sileneae, 583. 



Silicon, 623. 



Siliqua, 538. 



Simarubeae, 583. 



Simultaneous whorls, 166. 



Siphoneae, 223. 



Skeleton of cell-wall, 37. 



Skeleton of starch-grain, 60, 

 589. 



Skin of protoplasm, 38, 41. 



Sleep of plants, 799. 



Sodium, 622. 



Soft bast, 10 1. 



Solanaceae, 198, 522, 580. 



Solitary arrangement, 167. 



Solorina, 271. 



Solubility of starch-grains,6 1 . 



Sorby's researches on chlo- 

 rophyll, 684. 



Soredial branch, 266. 



Soredium, 271. 



Sorus, 356. 



Spadiciflorae, 554. 



Spadix, 520. 



Spathe, 473. 



Special mother-cells, 32, 88, 

 485. 



Species, 829, 844. 



Species, Origin of, 822. 



Species-hybrid, 817. 



Spectrum of chlorophyll, 678. 



Sperm-cell, 203, 802. 



Spermogonium,246,256,27i. 



Spermatia, 240, 246, 256. 



Spermatozoid, lo, 203, 212, 

 803. 



Sphacelia, 259. 



Sphaeroplea, 231. 



Sphagnaceae, 326. 



Sphagnum, 326, 327, 328, 329. 



Sphere-crystals, 63, 65. 



Spicular cells, 66. 



Spike, 520. 



Spine, 197. 



Spiraeeae, 585. 



Spiral arrangement, 169. 



Spiral flowers, 523, 531. 



Spiral theory of phyllotaxis, 

 180. 



Spiral vessels, 23, 97. 



Spirogyra, 9, 10, 17, 220. 



Splitting of the cell- wall, 71. 



Spontaneous periodic move- 

 ments, 784, 801. 



Sporangium, 129, 252, 356. 



Spore, 203, 240. 



Spores, Mode of formation 

 of, 14. 



Sporidia, 248. 



Sporocarp, 392. 



Sporogonium, 292, 324, 338. 



Spur, 500. 



Stamen, 426, 473. 



Staminode, 479. 



Staphyleaceae, 582. 



3 K 



Starch, 6, 57, 635, 669. 

 Starch-cellulose, 57. 

 Stem, 130, 136, 575. 

 Stem-tendrils, 196, 775. 

 Stephanosphaera, 218. 

 Sterculia, 478. 

 Sterculiaceae, 583. 

 Sterigma, 257, 271. 

 Sticta, 264. 

 Stigeoclonium, 4, 8. 

 Stigma, 429, 488, 499. 

 Stigmaria, 421. 

 Stigmatic cells, ■?.^i, 323. 

 Stipule, 192, 281, 564. 

 Stolon, 196. 

 Stomata, 75, 86, 603. 

 Stone-fruit, 104, 106, 539. 

 Stratification of the cell- 

 wall, 20, 29. 

 Stratioteae, 554. 

 Strawberry, 518, 536. 

 Streaming of protoplasm, 38, 



42. 

 Striation of the cell-wall, 



20, 29. 

 Stroma, 256. 

 Strophiole, 540. 

 Struggle for existence, 831. 

 Strychnaceae, 580. 

 Style, 488, 498. 

 Stylidieae, 581. 

 Stylospore, 254, 256. 

 Stypocaulon, 118. 

 Styracaceae, 581. 

 Subepidermal tissue, 80, 105. 

 Subhy menial layer, 269. 

 Successive whorls, 166, 170. 

 Sulphur, 622. 

 Superficial glands, 114. 

 Superior ovary, 491. 

 Surface-growth of the cell 



wall, 21. 

 Superposed members, 168,, 



524, 568. 

 Survival of the Fittest, 843. 

 Suspensor, 405, 424, 513. 

 Swarmspore, 5, 39, 211. 

 Swartzieae, 584. 

 Swelling, 36, 698. 

 Swelling of starch-grains, 61, 



592. 

 Swimming of swarmspores 



and spermatozoids, 39. 

 Symmetrical, 183, 469, 533. 

 Sympetalae, 580. 

 Sympetalous, 201, 471. 

 Symphoricarpus, 566. 

 Symphyllous, 471. 

 S y mpodial inflorescence, 521, 

 Sympodium, 157, 159. 

 Synandrae, 581. 

 Syncarp, 537. 

 Synsepalous, 201, 471. 

 System, Natural, 844. 



