- Rind, 
MORPHOLOGICAL, STRUCTURAL, AND PHYSIOLOGICAL BOTANY, 
Rhizoid, 831 
Rhizome, 118 
Ribbed venation, 160 
Ribs, 157 
alse, 95, 96, 102 
Ringed cells, 45 
Ringent, 236 
Ripening of fruits, 849 
Rolled leaves, 155, 
157 
Root, 13, 14, 125, 790 
Root-cap, 126, 128 
Root-hairs, 60, 67, 127 
Root-pressure, 791, 822 
-Root-sheath, 132, 855 
Rootstock, 118 
Rosaceous, 233 
Rostellum, 260 
Rotate, 235 
Rotation, 784 
Rotation of crops, 817 
Rounded cell, 37 
— leaf, 173 
— lobes, 249 
Roundish ovate, 173 
Round parenchyma, 47 
Ruminated, 341 
Runcinate, 167 
Runner, 117 
Rupturing, 308 
SACCATE, 229, 237 
Sagittate, 173, 250 
Salver-shaped, 234 
Salvinia, 371 
Samara, 315 
Sap, 27, 820 
Saprophytes, 133 
Sapwood, 85 
Sarcocarp, 299 
Sarcoderm, 326 
Sealariform vessels, 55 
Scales, 65, 104, 105, 140, 193, 
196 
Scaly bracts, 193 
*“— buds, 105 
— bulb, 122 
Scape, 198 
Sears of leaves, 141, 180 
—— — ferns, 101 
Schizocarps, 305 
Sclerenchyma,. 48, 78, 95, 
102 
Sclerenchymatous, 42 
Selerotium, 384 
ae abe cyme, 213, 215, 
216 
— “dichotomy, 110 
Seurf, 65 
Seaweeds, 392 
Secondary axis, 197 
— embryo-sacs, 837 
— medullary ravs, 89 
— meristem, 793, 794 
— products, 824 
— root, 125, 128, 135 
156, 
Secretion, 823 
Secretions, 804 
Sected, 165, 231 
Secund, 215 
Secundine, 329, 83° 
Seeds, 11s 2054298, 332, 
250 
— preservation of, 851 
— transportation of, 853 
— vitality of, 850 
| Seed-bud, 325 
— distinctive characters of, | 
28 
Seed-nucleus, 334 
Segment cell, 795 
Segments, 165 
Selaginellacez, 369, 833 
Selaginellas, 369, 833 
Self-fertilisation, 843 
Semi-double flowers, 362 
Semi-nude ovule, 325 
Sepals, 17, 222, 349 
Septemfid, 165 
Septemfoliate, 177 
Septenate, 177 
Septicidal, 303 
Septifragal, 303, 305 
Series, 150 
Serrate, 164, 231 
Serrulate, 164 
Sessile, 267 
— anther, 19, 242 
— flowers, 204 
— leaves, 15, 142, 147, 179 
— ovary, 279 
— ovule, 325 
— pappus, 228 
— sepal, 231 
— seed, 333 
— stigma, 290 
Seta, 373 
Setaceous, 66 
Setze, 66 
Setose, 66 
Seyen-cleft, 165 
Sexual filament, 398 
— generation, 367 
Sexuality of plants, 829 
Sharp-pointed, 169 
Sheath, 141, 181 
Sheathing, 147 
Shell, 20, 298 
Shield-like, 65 
-—— -cells, 391 
— -shaped, 141 
Shrubs, 115 
Sieve cells, 56 
— tubes, 55, 786 
— vessels, 55 
Silicula, 317 
Siliqua, 317 
Siliqueform capsule, 317 
Silver-grain, 89 
Simple corolla, 239 
— corymb, 205 
— fruits, -297, ape 
— gyneecium, 272 
— hairs, 63 
— leaves, 142, 162, 163 
877 
Simple ovary, 279, 280 
— pappus, 228 
— petiole, 179 
| — pisti!, 267 
— spiral vessels, 52 
— style. 288 
Sinuated, 164 
Sinuous, 249 
Sister cells, 788 
| Size of cells, 41 
—— — dicotyledonous trees, 
Skeleton leaves, 144 
Small spores, 369, 371, 833 
Soft bast, 90 
| Solitary axillary flower, 201 
Selecting power of roots, | 
791 
— terminal flower, 209 
Solubility, 380 
Soredia, 390 
Sori, 365 
Sorosis, 323 
Sources of food, 813 
Spadix, 203 
Spathaceous bracts, 196 
Spathe, 196 
Spathelle, 196 
Spathulate, 172 
Special functions of the 
stem, 794 
— mother cells, 259 
— phenomena, 855 
— physiology, 771 
Specific identity, 107 
Spermatia, 389 
Spermatophores, 389 
Sperm-cells, 366, 372, 835 
Spermogonia. 380, 389 
Spermophore, 281 
Sphacelia, 384 
Spheeraphides, 35 
Sphalerocarpium, 323 
Spherical cell, 37 
Spike, 202 
Spiked cyme, 213 
Spikelet, 197, 203 
Spine, 107 
Spines of leaves, 185 
Spiral cells, 45 
— estivation, 219, 220 
— vernation, 156 
— vesse's, 52, 101 
Spirilla, 387 
Spirogyra, 393, 778 
Spongelet, 126 
Spongiform 
47 
Spongiole, 126 
Sporangium, 6, 365, 
369, 370, 373, 377, 830 
Spores, i: 364 
Sporocarp, 370 
Sphorophore, 367 
Spreading branches, 116 
Spur, 237 
Spurious 
846 
— traches, 55 
Spurred, 229, 237 
Squame, 193 
parenchyma, 
367, 
fruit, 296, 322, 
