762 



BOTANY 



Reduction division, 84, *87, *280 ; stage 



of, *85 

 Regeneration, 1G3, 253 

 Rejuvenation, 275 

 Reproduction, 177, 274 ; conditions of, 



280 ; sexual, 278 ; significance of 



sexual, 282 ; vegetative, 276 

 Reseda, *91, 593 ; multicellular formation, 



*91 

 Resedaceae, 593 

 Reserve cellulose, 236 ; materials, 234, 



235 ; materials, mobilisation of, 235 ; 



regeneration of, 239 ; transport of, 



238 

 Resins, 69 

 Respiration, 241, *242 ; intramolecular, 



244 ; of fatty seeds, 243 ; production 



of heat in, 247 

 Respiratory cavity, 114 

 Rest-Harrow, Ononis 

 Resting period, for growth, 272 

 Reticulate venation, 544 

 lihabdonema, 352 

 Rhamuaeeae, 609 

 Rhamnus, *608, 609 

 Rheum, *566, *567, 567, 568 

 Rhinantheae, 660 

 Rlduanthus, 230 

 Rhipidiuui, 491, *493 

 lihipsalis, 571 

 Rhizomes, 24 

 Rhiziqyhrm, 629, *630 

 Rhizophoraceae, 525, 629 ; vivipary, 525 

 Rhizophores, 51 

 Rhiznpus, *384 

 Rhododendron, 641 

 Rliodophyceae, 374 

 Rhodoreae, 641 

 Rhoeadinae, 587 

 Rhubarli, Rheum 

 Rhus, 605 

 Ribes, *610, 611 

 Riccia, *14, *430 

 Ricciaeae, 430 

 Rice, Oryza 

 Richardia, 698 

 Ricinus, *564, *565, 566 ; aleurone grains, 



66 

 Rigidity, against bending, *268 ; against 



pulls, 269 ; against tearing, 269 

 Rigor, 271, 324 



Rohinia, *46, *161, 626 ; tyloses, *161 

 Roccella, 419, 422 

 Rock Rose, I/elianthemum vtdgare 

 Root, 14, 46, *129, *130, *131, 191 ; ad- 

 ventitious, 47 ; aerial, 46, 49 ; apical 



cell, 105 ; 1)rancbing of, 47 ; -cap, 46, 



10£ 



climbing, 49 ; form of, 48 ; 



-hairs, 47, 191, *192 ; lateral, 48 ; 

 nietamori)hosis of, 48 ; -pockets, 46 ; 

 -pressure, *201 ; reduction of, 49 ; 



respiratory, 49 ; -stocks, 24 ; system, 



192 ; tap, 48 ; -thorns, 49 ; -tip, 

 • growth of, *259 ; tuljercles, *230, 



339 ; of leguminosae, 231 ; -tubers, 



*48 

 Rosa, *519, *612, 615, 616; fruit of, 



*519 

 Rosaceae, 611 

 Rose of Jericho, Anastatica hierochuntica, 



692 

 RosiHorae, 611 

 Rosmarinus, 655, 656 

 Rotation, 58 



Rowan, Sorhus (Pyrus) aucuparia 

 Royal fern, Osmunda 

 Rozites, 414 

 Rubber, see Caoutchouc 

 Ruhia, 664, 667 

 Rubiaceae, 662 

 Rubiinae, 662 



Ruhus, *520, *615 ; fruit, *520 

 Rudimentary structures, 10 

 Rume.c, 568 

 Runners, 26 

 Riqjpia, 686 

 Ruscus, 26, *27 

 Rush, Juncus 

 Russida, *410, 414 

 Rust-fungi, see Urediueae 

 Ruta, *602, 603 

 Rutaceae, 602 

 Rye, Secale 



SahadUIa, 707 



Saccharomyces, *11, 246, *400 



Saccharomycetes, 400 



Saccharuvi, *111, 693 



Saffron, Crocus sativus 



Sagittaria, *686, 686 



Salicaceae, 553 



Saliciflorae, 553 



Salicin, 239, 554 



Salicornia, *207 



Salix, *553, 553 



Salpiglossis, 658 



Salvia, *654, 655; pollination, 496, 



*502 

 Salvinia, *456, *457, *458, 472 ; fossil, 



472 

 Salviniaceae, 456 

 Samhuceac, 668 

 Savibucus, 158, *4S4, 668, *672 ; lenticel, 



*159 ; phellogen, 158 

 Saviobis, *22 

 Sanguisorha, *612, 614 

 Sanicnla, 637 

 Santahiceae, 558 

 Sanfalnm, 558 

 Sajjindaceac, 607 

 Sajjiudinae, 605 

 Saponaria, 570, *570 



