978 



INDE X. 



Spiral vessels, 22, 90, 114? 

 116 (Figs. 75, 95). 



Spirillum, 249, 954 (Fig. 

 166). 



Spirobacteria, 249. 



Spirochaete, 249. 



Spirogyra, io„ 16, 46, 234, 

 258, 946 (Figs. 5, 6, 13, 

 170). 



Spirulina, 249. 



Splitting of the cell-wall, 73 

 (Figs. 58, 59). 



Spongy parenchyma, 84. 



Spontaneous periodic move- 

 ments, 880, 881, 895. 



Sporangium, 388, 402, 414, 



436, 453, 455, 456, 459, 

 466, 475, 476, 479, 480 

 (Figs. 285, 290, 292, 304, 

 305, 319-322, -325, 327, 

 334, 335, 337, 338). 



Sporastatia, 323. 



Spore, 223, 228, 382, 404, 

 438. 



Spores, Mode of formation 

 of, 12 (Figs. 7, 10, 188, 

 205, 223, 227, 268-270, 

 286, 305, 306, 322, 323, 



337). 

 Sporidia,33o, 334(Fig. 224). 

 Sporocarp — 



of Garposporeae, 236, 



284 (Figs. 164, 187- 



190, 199, 204, 207, 



208, 218). 



of Rhizocarpeae, 451, 



452,453,455,456,459 

 (Figs. 317-321, 325). 



Sporogonium, 226, 342, 350, 

 354, 355, 360, 374, 379, 

 380, 381 (Figs. 238, 240, 

 246, 257, 263-266). 



Sporophore, 225, 343, 387. 



Spur, 570 (Figs. 396, 491). 



Squamarieae, 292. 



Stamen, 490, 505, 514, 529, 

 541, 543, 544, 545, 54^ 

 (Figs. 344, 347-350, 362- 

 366, 490). 



Staminal leaves, 541. 



Staminode, 548. 



Staphisagria, 608. 



Staphylea, 651. 



Staph yleaceae, 660. 



Starch, 6, 56, 707, 747. 



Starch-forming corpuscles, 

 948. 



Starch grains, 46, 56, 61 

 (Figs. 45, 49). 



Staurospermum, 257. 



Stem, 150, 157. 



Stem-tendrils, 217, 865. 



Stephanosphaera, 255 (Fig. 

 168). 



Sterculia, 547 (Fig. 371). 

 Sterculiaceae, 661. 

 Stereocaulon, 319. 

 Sterigma, 326. 

 Stichococcus, 329. 

 Sticta, 320 (Fig. 214). 

 Stigeoclonium, 4, 8 (Fig. 3). 

 Stigma, 493, 558, 568 (Figs. 



382, 385-387, 390-392, 



395, 491, 492). 

 Stigma, of Muscineae, 343, 



373- 



Stigmaria, 485. 



Stigmatic cells, 351. 



Stinging hairs, 100. 



Stipulatae, 390, 410. 



Stipule, 212, 215, 640. 



Stipules of Chara, 295. 



Stolon, 217. 



Stomata, 77, 102, 103, 104, 

 105, 106, 678, 949 (Figs. 

 84-89). 



Stone, 122, J 25. 



Stone-cells, 84. 



Stone-fruit, 616. 



Stratification of the cell- 

 wall, 19, 27, 946. 



Stratioteae, 631. 



Stratiotes, 952. 



Strawberry, 221, 594, 614. 



Strelitzia, 555. 



Striation of the cell-wall, 

 19, 27 (Figs. 28, 30, 32). 



Stroma, 316 (Fig. 209). 



Strontium, 695. 



Strophiole, 618. 



Struggle for existence, 929. 



Struthiopteris, 428, 433, 



435. 

 Strychnaceae, 658. 

 Strychnos, 587, 949. 

 Style, 558, 567 (Figs. 383, 



386, 388-390, 392, 393, 



395, 491)- 



Stylidieae, 659. 



Stylogonidium, 239. 



Stypocaulon, 139 (Fig. 108). 



Styracaceae, 659. 



Suberous change of cell- wall, 

 20. 



Subhymenial layer, 310, 323, 

 325, 333, 338 (Figs. 7, 205, 

 218, 219, 227). 



Successive whorls, 187. 



Succulent tissue, 83. 



Sugar, 708. 



Sulphur, 696, 698. 



Sulphuric acid, 698. 



Sunflower,7i,i54, 171 (Figs. 

 118, 126). 



Superior gynaeceum, 560. 



Superposed, 189, 601, 645. 



Surface-growth of the cell- 

 wall, 21, 946. 



Survival of the Fittest, 941. 

 Suspensor, 472, 499, 523, 



588 (Figs. 332, 354, 355, 



399, 400, 402-405). 

 Swarm-spore, 4, 12, 240. 

 Swartzieae, 662. 

 Swelling -up, 35, 6j, 668, 



778. 

 Swimming of swarm-spores, 



38. 

 Symmetry, 204, 537, 610, 



960. 

 Sympetalae, 658. 

 Sympetalous, 221, 539. 

 Symphoricarpus, 642 (Fig. 



440). 

 Symphyllous, 539. 

 Symphytum, 577, 598. 

 Sympodial inflorescence, 597. 

 Sympodium, 178, 180. 

 Synacmic, 910. 

 Synalissia, 327. 

 Synandrae, 658. 

 Syncarp, 614. 

 Synchitrium, 252. 

 Synergidse, 580, 959 (Fig. 



399)- 

 Synsepalous, 221, 539. 

 Syntagma, 664. 

 Syringa, 652. 

 System, Natural, 942. 



Taccaceae, 632. 



Tagma, 664. 



Tamariscineae, 660. 



Tannin, 706. 



Tap-root, 637. 



Tapetum, 388, 437, 49 1 (Figs. 



305, 322, 337, 374, 377). 

 Targioneae, 356. 

 Tasmannia, 651. 

 Taxineae, 527, 958. 

 Taxodineae, 527, 958. 

 Taxodium, 510, 517, 527. 

 Taxus, 513, 522, 527 (Figs. 



348, 354). 

 Tecoma, 137, 654. 

 Teeth, 381, 383. 

 Teleutospore, 3 30 (Figs. 223, 



224). 

 Temperature, Influence of, 



725. 

 Tendril, 214, 217, 865, 934, 



936 (Fig. 486). 

 Tension — 



in plants, 787. 

 of tissues, 794. 

 Terebinthaceae, 93, 660. 

 Terebinthineae, 660. 

 Terminal branching, 176. 

 Ternstromiaceae, 660. 

 Testa, 486, 492, 593 (Figs. 



346, 435, 436, 438). 

 Tetracyclae, 655, 657. 



