INDEX 



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Sea-shore 145 



Secondary ribs 33, 34, 35, 39, 41, 



46, 47, 48, 49, 50, 51, 52, 55, 



57, 58, 59, 61, 65, 108 

 Section of leaf 87 

 Sections of tissues 69 

 Sedges 5, 19, 35 

 Seduni 36, 37, 100, 102 

 Seed 67, 70, 98, 130. 144 

 Seedlings 106, 129, 130 

 Segmentation 38, 44, 118 

 Segmented leaf 43 

 Segments of leaf 15, 16, 26, 40 

 Sempervivum 100 

 Sensitive movements 117 

 Sensitive Plant 15, 116, 117 

 Sepals 99 



Separation of cells 70, 71 

 Serrate margin 27, 29, 38, 43, 159, 



186, 231 

 Serratulie 284 



Serratulate margin 191, 243, 244 

 Serrulation 190 

 Service Tree 17, 26, 30, 55, 63, 



174, 205-2(17 

 Sessile leaf 14, 17, 153, 154, 199 

 Setaceous prickles 172 

 Shade 101, 118, 131 

 Shading effect 118 

 Shaking effects 123 

 Shape of lamina 3, 108, 119, 120, 



121 

 Shaping of leaf 38 

 Shearing action 142 

 Sheath 14, 19, 20, 310 

 Sheathing 19 

 Shining surface 36 

 Shoot 3, 4, 82, 97, 120, 144, 145 

 Shoot-axis 38, 101 

 Short-lived annuals 144 

 Shrivelling of leaf 98 

 Sickly plants 129, 134 

 Side to side movements 115 

 Silky hairs 37, 245, 279, 286, 289 

 Silky-pubescent surface 159, 243 

 Silphium 148 

 Silver Fir 11, 24, 29, 110, 120, 



141, 151, 314 

 Silvery scales 37, 294 

 Simple leaf 14-18, 21, 22, 24, 38, 



39, 43, 44, 45, 109, 11*. 151, 



177, 188 



Simple venation 46, 54, 55 

 Sinuate margin 27, 30, 186, 231, 



284 

 Sinuate-dentate margin 253 

 Sinuate-toothed margin 253 

 Sinus 181, 183, 211, 215, 229, 231 

 Size of leaf 3, 120, 139 

 Sizes of stomata 97, 104, 106 

 Skeleton cell-walls 73, 76 

 Skeleton-leaf 79, 80 

 Skin of leaf 81 

 Sleeping position 112 

 Sleep-movements 108, 113 

 Slimy secretions 121 

 Smooth surface 36 

 Snow 140, 142 

 Snowberry 202 

 Soft tissues 32 

 Soil 125, 142 

 Solanaceas 8 



Solanum dulcamara 205, 304 

 Solar rays 140 

 Solar spectrum 125, 133 

 Source of carbon 85, 132 

 Spartium 146 

 Spathulate leaf 23, 24 

 Special adaptation 138, 142 

 Spectrum of chlorophyll 128 

 Spindle Tree 21, 24, 29, 30, 58, 



118, 180, 181, 190 

 Spine-pointed apex 297 

 Spines 165, 173, 219, 281, 294, 



298 

 Spinesceut shoots 265, 294 

 Spinescent- toothed margin 162, 



249, 281 

 Spinose parts 37, 203, 296 

 Spinose-ciliate margin 231 

 Spinose-dentate margin 30 

 Spiral phyllotaxy 4, 5, 6, 8, 13, 



158, 203, 243, 286, 313 

 Splitting of middle lamella 70, 



71 

 Spongy mesophyll 86, 88, 89 

 Spontaneous movements 111, 114, 



115, 116 

 Spnres 71 

 Spots 37 

 Spruce 20, 24, 29, 55, 111, 316, 



317 

 Spurge Laurel 4, 24, 28, 299, 300 

 Stalk 15, 17, 18, 119 



