INDEX 



399 



Silver Fir 7, 136, 177 



Silvery hairs 229 



Similar halves 124 



Simple 27, 29 



Simple axis 8 



Sim2)le bract 140 



Simple cyme 30, 36 



Simple flowers 139 



Simple inflorescences 17 



Simple leaves 76 



Simple perianth 141 



Simple racemose inflorescence 18 



Simple umbels 330 



Size 82, 87, 92, 94, 96, 112, 123 



Sizes of pollen-grains 89, 94 



Small flowers 156 



Small insects 163 



Small ovules 113 



Snowberry 79, 80, 152, 153, 164, 



344 

 SolanacefB 38 

 Solanum 64, 86 

 S. Dulcamara 341 

 Solitary flower 17 

 Sophora 166 

 Sorb 32, 328 

 Spadix 17, 25, 68 

 Spatliaittheiim 38 

 Spathe 25, 68 

 Spatldcarpa 38 

 Specialised floral types 144 

 Specialised flowers 134 

 Spermatozoids 89 

 Spicate 163 

 Spicate catkins 248 

 Spicate inflorescence 25, 142, 239 

 Spike 17, 18, 24, 25, 27, 29-31, 



133, 142, 229, 231, 241 

 Spikes of spikelets 29 

 Spindle Tree 33, 59, 65, 71, 77, 



93, 105, 109, 110, 164, 308, 309 

 Spines 97 

 Spinesceut shrub 229, 269, 283, 



288, 303, 305, 328 

 Spiirea anincus 161 

 Spiral arrangement 46, 55, 57, 58, 



127, 132, 137, 144 

 Sporangium 96, 121, 154 

 Spore-bearing leaf 84 

 Spore-bearing organs 45 

 Spore-forming cells 90, 116 

 Spore mother-cells 96 



Spore-producing tissue 90, 92 



Spores 84, 96, 99, 154 



Spores of Cryptogams 89, 121 



Sporogenous cells 90, 112, 121 



Si^orogenous mass 95, 96 



Sporogenous tissue 89, 96, 121 



Sporophyll 84, 154 



Spruce 6, 137, 177 



Spurge Laurel 70, 108, 281 



Spurred 74 



Stalk 113, 114 



Stalked 140 



Stamen a foliar organ 82 



Stamen a leaf 84 



Stamen a sporophyll 84 



Stamens 3, 4, 41-43, 48, 51-54, 

 56, 57-62, 67, 68, 71, 79, 81, 

 82, 123, 126, 127, 128 133, 135, 

 139-141, 143, 144, 145, 147- 

 150, 152, 154, 155, 157, 163, 

 165, 167, 168, 175, 178-180, 

 188, 191, 192 



Stamens, united 303 



Stamens, displaced 130 



Staminal scales 139 



Staminal tube 149, 150, 166 



Staminate 26 



Staminate cone 137 



Staminate flowers 81, 110, 111, 

 145, 155, 161, 180 



Staminate inflorescences 27 



Staminate scales 137 



Staminode 125 



Standard 124, 149, 150, 165, 301, 

 302, 305 



Stanley a 57 



Starved 49 



Statice 131 



St Daboec's Heath 18, 335 



Stellaria 33 



Sterculiacefe 57 



Sterculias 43 



Sterile 27 



Stigma 94, 101, 102, 103, 104, 

 107, 139, 140, 143, 154-156, 

 159, 160, 163, 165, 169, 175 



Stigma, lobed 107 



Stigmatic arms 148 



Stigmatic surface 98 



Stigmatic tissues 169 



Stimulations provoked by parasitic 

 hyphoe 170, 171 



