INDEX 



289 



Proteids, 29, 217 

 Prothallus, 272, 273, 274, 280 

 Protophloem, 59, 66, 156 

 Protoplasm, 29 



circulation of, 42, 44 



continuity of, 40, 41 



rotation of, 42, 43 

 Protoplasmic movements, 41 

 Protoxylem, 51, 52, 54, 66, 79, 156, 



165, 238, 257 

 Pumpkin, 59, 60 



Quercus Suber, 96 



RACEME, 19, 149 



Radicle, 133, 137, 188 



Radish, 6 



Raphe, 183 



Receptacle, 19, 20 



Replum, 137 



Reproductive organs, 3, 18, 103, 



173, 265 



Resin canal, 240, 246, 251, 253 

 Respiration, 228 

 Reticulated vessels, 54 

 Root, 1, 7, 17, 72, 148, 234 



adventitious, 148, 164 



branching of, 87, 170, 262 



contractile, 195 



function of, 2, 218 



growing-point of, 85, 169, 261 



lateral, 100 



secondary thickening of, 98, 



258 



tap, 17, 72, 254 

 Root-cap, 78, 85, 170, 262 

 Root-hair, 18, 73, 76, 77, 167, 218, 255 

 Root-pressure, 220 

 Rootlet, 87, 170, 262 

 Rotation of protoplasm, 42, 43 

 Rye, 192 



Sambucus, 134 

 Sap, ascent of, 219 

 Scilla, 1S8 

 Secondary growth, 90 



- bast, or phloem, 93, 247 

 wood, or xylem, 94, 242 



19 



Seed, 2, 25, 38, 135, 191, 193, 237, 

 281 



Seed, germination of, 138, 194, 281 



Seed-leaves, 78 



Seed-vessel, 2 



Seedling, 78, 79, 140, 194, 282 



Seminiferous scale, 235, 270 



Sepal, 20, 22, 106, 149, 174 



Septum, 21, 25, 137 



Sessile, 15 



Shepherd's Purse, 118, 121, 131 



Shoot, 3, 12 



Sieve-plate, 58, 60 



Sieve-tube, 57, 60, 157, 238, 247 



Sinapis, 86 



Sliding growth, 95 



Spermatozoids, 278 



Spiral vessels, 53, 158 



Spongy parenchyma, 68, 69, 70, 162 



Spores, 113 



Spring-wood, 245 



Spruce-fir, 233,-283 



Stamen, 19, 24, 109, 150, 174, 235, 

 265 



Starch granules, 6, 35, 214 



Stem, 1, 12, 46, 142, 152, 233, 238 



function of, 2 



growing-point of, 13, 82, 168, 



260 



Stigma, 20, 25, 116/126, 181 



Stigmaria jicoides, 10 



Stoma, 48, 64, 68, 69, 70, 71, 163 



223, 249 



| Style, 25, 179, 182 

 | Sugar, 36 

 I cane, 214 



grape, 61, 214 



Suspensor, 130, 188, 280 



Syncarpous, 151, 179 



Synergidse, 120, 182 



Systematic botany, 8 



TAP-ROOT, 17, 72, 254 

 Tapetum, 110, 113, 267 

 Testa, 135, 193, 237 

 Tetrarch, 74 

 Thalamns, 20 

 Tiger-Lily, 176 



