274 



INDEX 



Seed, of Dicotyledons, 85, 125 ; of 



Pine, 147 



Segmental cells, 167, 169, 198 

 Selaginella, 150 

 Seta, 1 80, 196 

 Sexual organs, of Ferns, 175 ; of 



Mosses, 183 ; of Liverworts, 193 ; 



of Characese, 213 ; of Florideae, 



200 ; of Fuais, 206 ; of 



Vaucheria, 220 ; of PythiTim, 243 

 Sieve-plates, see Sieve-tubes 

 Sieve-tubes, Sunflower, 40, 43 ; of 



Elm, 56, 60 ; of Cttctirbita, 70 ; 



of Maize, 96 ; of Pine, 137, &c. j 



of Ferns, 161-164, &c. 

 Siphonese, 219 

 Soft-bast, see Phloem 

 Sori, 156 



Spawn of Mushroom, 226 

 Spermatia, 200 

 Spermatozoids of Fern, 175, &c. ; 



of Moss, 183 ; of Marc hantia, 193; 



of Fucus, 207 ; of Chara, 213 ; of 



Vaucheria, 220, c. 

 Spermogonia, 232 

 Sphere -crystals of inulin, 74 

 Spiral vessels, of Sunflower, 44 ; of 



Elm, 61 



Spirogyra, 17, 223 

 Spongy parenchyma, 78, 81 

 Sporangium of Selaginella, 151 ; of 



Fern, 156, 172 

 Spores, of Selaginella, 154 ; of Fern, 



172, of Moss, 1 86, of Marchantia, 



194; of Mushroom, 228, 230; of 



Mucor, 245 

 Spore-sac (Moss), 186 

 Sporidium, 232 

 Sporodinia, 245 

 Sporogonium, of Moss, 179, 184; 



of Marchantia, 194 

 Sporophyte, of Selaginella, 1505 of 



Fern, 156; of Moss, 184 

 Spurious tissue, 228 

 Staining, 30 

 Stamen, 108, 116, 145 

 Starch, structure and reactions of, 



28 ; optical properties of, 128 

 Starch-forming corpuscles, 128 



Stellaria, flower of, 109 ; pollen- 



tubes of, 1 20 

 Stem, herbaceous Dicotyledon, 



35 ; arboreous Dicotyledon, 52 ; 



aquatic Dicotyledon, 67 ; of Pine, 



135 ; of Selaginella, 151 ; of Fern, 



c 15 - 6 



Stengmata, 230, 232, 237 



Stigma, 109, 1 20 



Stipe, 227 



Stomata, 76, 81 ; of Maize, loo ; of 



Pine, 144; of Fern, 171 ; of Moss, 



1 86; of Marchantia, 190 

 Stratification of cell-walls, 38 

 Striation of cell-walls, 140 

 Strychnos, 125 

 Style, 109, 1 20 

 Subsidiary cells, 101 

 Sub-hymenial layer, 229 

 Sugar, 129 



Sunflower, see Helianthus 

 Suppression, no 

 Suspensor, 122, 149 

 Swarm spores, 217 

 Synergidae, 120 



TAPETUM, 117, 120, 154 



Taraxacum, 73, 1 12 



Teleutospores, 232, 235 



Tetraspores, 199 



Thallophyta, 197 



Thyloses, 41, 44 



Tilia, sieve -tubes of, 71 



Trabeculae, 152 



Trabecular tissue, 204 



Tracheides, of Pine, 138, c. ; of 



Fern, 161-165 

 Tradescantia, 23 

 Trama, 229 

 Trianea. 22 



Ulnms, see Elm' 

 Uredospores, 234 



VACUOLE, 18 

 Vacuolization, 49 

 Vaginula, 180 



