818 



INDEX, PART II. 



Roots, structure of, 61, 146 (Figs. Ill, 



114, 115), 154, 161, 165 (Figs. 



127, 129, 131), 177 (Figs. 185, 



136), 187 (Fig. 142). 

 Root-caD, 61, 147 (Fig. Ill), 211, 682. 

 Root-hairs, 65, 158 (Fig. 123), 681 



(Fig. 468). 

 Root-pressure, 700, 764. 

 Root-tubercles, 713. 

 Rostellum, 456 (Fig. 294), 564. 

 Rotate, 514 (Fig. 329). 

 Rotation of protoplasm, 733. 

 Ruminated endosperm, 595, 597. 

 Runner, 42. 



Sac, 139, 140 (Fig. 103). 



Sagittate, 54. 



Salicin, 708. 



Samara, 531, 579 (Fig. 381), 616 (Fig. 



418). 

 Saprophyte, 273, 283, 293, 3 10, 656, 711. 

 Scalariform vessels, 104. 

 Scaly leaves, 58. 

 Scape, 493. 



Schizocarp, 529 (Fig. 341). 

 Schizogenous, 130, 139. 

 Schizostely, 152 (Fig. 116). 

 Scion, 767. 



Sclerenchyma, 132, 160, 196. 

 Sclerenchymatous tissue, function of, 



676. 

 Sclerotic cells, 133 (Figs. 92, 93). 

 Sclerotium, 68, 275, 285, 295 (Fig. 



212). 

 Scorpioid cyme, 36, 492. 



dichotomy, 33, (Fig. 18). 

 Scutellum, 533 (Fig. 346). 

 Scutiform leaf, 412. 

 Secondary bast, 192, 199. 



conjunctive tissue, 200. 



cortical tissue, 213. 



desmogen, 202. 



extra-stelar tissue, 207. 



members, 19 (Fig. 7). 



sclerenchyma, 196. 



stelar tissue, abnormal, 204. 

 normal, 191. 



tegumentary tissue, 208. 



tissues, differentiation of, 202. 



tracheal tissue, 194. 



wood, 194 (Fig. 148). 



wood-parenchyma, 195. 

 Secretion, 137, 143 (Fig. 108). 

 Secretum, 137, 143. 

 Sectile pollinium, 564. 

 Seed, 74, 88, 218, 431, 458 (Fig. 295). 

 Segmentation of apical cell, 148 (Figs. 



112-115). 

 Segmentation of body, 5. 

 Self-pollination, 453. 

 Semi-amplexicaul, 47. 



Sensitive petiole, 690 (Fig. 473). 



plant, 689 (Fig. 472), 742, 756. 

 Sepal, 79, 494, 691. 

 Septate body, 89, 273. 

 Septicidal dehiscence, 531 (Fig. 343). 

 Septifragal dehiscence, 531. 

 Septum, 121, 133, 197. 

 Serrate, 52, 54. 



Sessile, 49 (Fig. 28), 77, 490, 517. 

 Seta, 75, 330, 334, 360. 



of Carex, 551. 

 Sex, 773. 

 Sexual affinity, 774. 



generation, 3. 



organs, 86. 



process, 3, 69, 275, 770, 776. 



reproduction, 80, 225, 275, 772. 

 Sexuality, 772. 

 Shield, 252. 



Shoot, 5, 6, 41 (Fig. 22), 184. 

 Sieve-plates, 136 (Fig. 97), 199. 



-tissue, 135 (Figs. 97, 98), 678. 



-tubes, 136 (Fig. 97), 199. 

 Silicon, 710, 716. 

 Silicula, 531, 604 (Fig. 407). 

 SiUqua, 531 (Fig. 342), 604 (Fig. 407). 

 Simple gonidiophore, 278. 



leaf, 52. 



inflorescences, 490. 



sporophores, 278. 

 Simultaneous whorls, 24. 

 Sleep-movements, 689. 

 Sliding growth, 203. 

 Sodium, 710, 716. 

 Soft bast, 199. 



Soredium, 68, 321 (Fig. 227). 

 Sorosis, 528, 561. 



Sorus, 71. 75, 85, 307, 374, 390 (Figs. 

 257, 260), 432. 



bisexual, 87. 



unisexual, 87. 

 Spadix, 490. 

 Spathe, 79, 490. 

 Species, 218. 



Specific absorbent capacity, 694. 

 Spermatium, 81, 116, 228, 268, 277, 



297 305. 

 Spermatozoid, 3, 81, 115, 227 (Figs. 

 190, 191), 326 (Figs. 223, 224), 

 377, 400 (Fig. 266). 

 Spermogonium, 85, 276, 297, 305, 320 



(Fig. 226). 

 Sphffirocrystal, 114 (Fig. 73). 

 Spicate capitulum, 492. 



raceme, 492. 

 Spicular cells, 467. 

 Spike, 490 (Fig. 309). 

 Spikelet, 490. 

 Spine, 59 (Fig. 38), 161. 

 Spiral arrangement, 27 (Fig. 15). 



vessels, 104 (Fig. 58). 



