INDEX. 



575 



Sori of Ferns, 430 



Sorrel, salt of, 401 



Sorrel tribe, 577 



Sow-bread, 646 



Spadix, 412, 457 



Sparganium, 727 



Spathe, 412, 457 



Spearmint, amount of absorption and exha 



lation by, 100, 261 



Species, meaning of the term, 14-16, 4/5,47 

 number of, 17, 473, 474 ; arrange 



ment of in groups, 17, 18, 477 

 Sphagnum, 75 

 Spider Orchis, 692, 693 

 Spindle Tree, 582 

 Spiral cellular tissue, 75 



cartilage of Dugong, 83 



ducts, 82 



growth of stems, 147 



vessels of Plants, 80 

 Spirting Cucumber, 419, 607 

 Spongioles, 104, 105, 114 

 Spore, nature of, 20, 426 

 Spotted Arum, 731 



Spurge tribe, 669 

 Squill, flower of, 464 

 Stamens, structure, 433, 461 

 Starch, 336-339, 342; conversion of into sugar, 



340, 341 

 SMlaria, 542 

 STEM, general purposes of, 123, 124 



Exogenous and Endogenous, 125 



structure of in Exogens, 126-140 



structure of in Endogens, 141-144 



- tendency of to grow upwards, 146 



- tendency of towards spiral growth, 147 



- hollow, 148; irregular forms of, 149- 



151; origin of roots from, 15?; 

 structure of in Tree Ferns, 153; 

 characters derived from in classifi- 

 cation, 494 



Stigma, 434 



Stings, 97, 363 



Stinking Hellebore, 511 



Stitch wort, 542 



Stock, 529 



Stomata, 91-95, 248 



Stone of fruit, 74 



Stonecrops, 609 



Ktorksbill, 573 



Strati otes, 514, 685, 686 



Strawberry, runners of, 150, 305 ; leaves of 

 304 ; flower of, 593 ; fruit of, 4C8 



Strawberry tree, 642 



Style, 434 



Stylidium, 420 



Sugar, 33, 334 



Sugar-cane, 151,206,734 



X.B.The numbers refer to the paragraphs. 



Sumach, 398 

 Sun-dew tribe, 540 

 Sun-flower, exhalation from, 263 

 Superflua, 631 

 Sweet Potatoe, 652 

 Symphytum officinale, 655 

 Syncarpous, 499 

 Syngenesia, 630, 631 



T. 



TALLOW, vegetable, 382 



Tannin, 365, 366 



Tapioca, 339 



Tar, 376 



Tartaric acid, 400 



Tea Plant, 559-562 



Teazel, 241 



Tempering of soils, 178 



TEREBINTACB^E, 585 



Thee* of Ferns, 430 



Theobroma Cacao, 555, 556 



Thistle-headed Plants, 630 



Thorns, 27, 307 



TILLAGES, 557 



Tillandsia, 241 



Tissues of Plants, 60, 67 ; elements of, 68-70 

 chemical composition of, 163; first produc- 

 tion of, 355-358; characters derived from, 

 m classification, 493 



Tissue, cellular, 70-75 



woody, 76-79 



vascular, 80, 81 



ducts, 82-86 



laticiferous, 87, 140, 299 

 Tobacco, 300, 362 



Tobacco- plant, 657, 658 

 Tradescantia, 356 

 Transplanting, 106 

 traveller's Joy, 5JO 

 Tree-Fern, 23, 153 

 Tree Kale, 532 

 'ree Mallow, 548 

 'riticum repens, 736 

 ''rollius, 51 1 



Trumpet-wood, 674 



Tulip, 715 

 'urmeric, 397 

 'urmeric-plant, 699 

 'urnip, 529 

 'urpentine, 375 

 'ype of natural group, 491 

 YPHACE*:, 727, 728. 



U. 



TMBELLIPERJE, 617-620 

 pas tree, 6/4 



