INDEX 



795 



Russula, *461, 467 



Rust Fungi, Uredintae 



Rust of Wheat, Puccinia graminis 



Ruta, 652, *653 



Rutaceae, 652 



Rye, Secale cereale 



SabadUla, 725 



Saccharomyces, *27, 449, *450 

 Saccharomycetes, 449 

 Saccharum, 734 

 Saffron, Crocus satin/ s 

 Sagittaria, 719, *720, 721 

 Salicaceae, 614 

 Saliciflorae, 614 

 Salicornia, *173 

 Salix, 615, *616 



Salvia, *696 ; pollination of, 555, *556 

 Salvinia, *513, *514, *515 

 Salviniaceae, 512, 513 

 Sambucus, 706 ; flower of, *547 

 Sangnisorba, *660, 661 

 Santalaceae, 620 

 Santalum, 620 

 Sapiudaceae, 655 

 Sapindinae, 655 

 Saponaria, 627, *629 

 Sapotaceae, 686 



Saprolegnia, *35, 430, *431 ; course of 

 development of, 311 ; zoospores, *196 

 Saprolegniaceae, 430 

 Saprophytes, 255, 256 

 Sarcina, 375 

 Sargassum, 410 

 Sarothamnus, 671 

 Sarraceniaceae, 639 

 Sassafras, 638, *640 

 Savannahs, 219 

 Saxifraga, 659 

 Saxifragaceae, 659 

 Saxifrage, Saxifraga 

 Scabiosa, 707 

 Scalariform pitting, *66 

 Scale leaves, 118 

 Scandix, 682 

 Scenedesmus, 401, *402 

 Schistostega, *493, 496 

 Schizaeaceae, 509 

 Schizocarp, 584 

 Schizonema, 388 

 Schizosaccharomyces, 449 

 Schoenocaulon, 725 

 Sciadium, 397 

 Sciadopitys, 598 

 Scilla, 725 

 Scinaia, 427 

 iStewyMs, 730, *731 

 Scitaraiueae, 742 

 Sclerenchyma, 60, *62 

 Sclerenchymatous fibre, *61 

 Scleroderma, 467, 468 



Sderopodium, *493 



Sclerospora, 433 



Sclerotium, 437 



Scolopendrium, *508 



Scorzonera, 716 ; seedlings, *588 



Scrophulariaceae, 703 ; floral diagrams of, 



208 



Scurvy Grass, Cochlearia qfficinalis 

 Sea lettuce, Ulva lactuca 

 Secale, 733, 734, *735 

 Sedum, 658, *659 



Seeds, 193, 540, 579 ; distribution of, 584 

 Segregation of characters, 320 

 Seismonasty, 359 



Selaginella, 523, 527, *528, *529, *530 

 Sdaginellaceae, 502, 527 

 Selection, 324 

 Selective power, 241 

 Self-pollination, 201 

 Self -sterility, 558 

 Semi-permeable membrane, 224 

 Sempervivum, 658 ; formation of the 



flowers of, 312 

 Senecio, 711, 718 

 Sensitive Plant, Mimosa pudica 

 Sepals, 197 



Sequoia, 235, 598, 599, 606 

 Serjania, *183 

 Sex, determination of, 314 

 Sexual reproduction, significance of, 315 

 Sexual reproductive cells, 198 

 Shaddock, Citrus decumana 

 Shade plants, 181 



Shepherd's purse, Capsella bursa pastoris 

 Shoot-thorns, 172 

 Shoots, 84 ; adventitious, 122 ; aerial, 84 ; 



axillary, 121 ; branching of, 119 ; 



endogenous, 122 ; formed from roots, 



306 ; normal, 122 ; order of sequence 



of, 124 ; subterranean, 84 

 Shorea, 647 

 Shrubs, 141 

 Sieve-pits, 63, *64 

 Sieve-plates, 63, 159 

 Sieve-tubes, *63, *64, 158 

 Sigillaria, 532 

 Sigillariaceae, 502, 532 

 Silene, *630 

 Siler, *678 

 Siliceous earth, 392 

 Silicoflagellatae, 380 

 Silicon, 240 



Silver Fir, Abies pectinata 

 Simarubaceae, 654 

 Sinapis, 645 

 Siphonales, 405 

 Siphonocladiales, 404 

 Siphonodadus, 404 

 Siphonogams, 542 

 Sisymbrium, *644 

 Sium, 682 



