682 



Index. 



Saxifraga dccipicns, 320; um- 



brosa, 70. 

 Scabiosa alba, 83; atroptirpurea, 



2,72, 553- 



SCHUZ, 606. 

 SCHROTER, 63. 



Scirpus lacustris, 70. 

 Scrophularia nodosa, 289; trico- 



tyls, 407. 

 Sectorial plants, 145; variation, 



620; variegation, 276. 

 Scdum reiiexum cristatum, 513. 

 Seedlings, yellow, 289. 

 Seeds, choice of, 2>Z^ I of atavists, 



516. 

 Segregation, vegetative, 619. 

 Selection, double, 545. 

 Semi-latent characters, 19. 

 Senecio Jacobaea, 81. 

 Sexual relationship, 592. 

 Sieve of natural selection, 610. 

 Silene Armeria alba, 84; Armcria 



rosea, 85 ; conica, tricotyls, 389 ; 



conoidea, tricotyls, 390 ; inflata, 



tricotyls, 437; noctiHora, 390; 



noctiHora, variegated, 287 ; 



odontipetala, tricotyls, 357. 

 Si nap is alba, 460. 

 Single variations, 6. 

 Sippe, 591. 

 SOLLAS, 666. 



Solms-Laubach, 96. 



Sonchus palustris, 506. 



Sophora japonica pendula, loi. 



Species and varieties, 578; col- 

 lective, 61, 589; conception of, 

 567; elementary, 58; incipient, 

 9; origin of new, 71; provi- 

 sional, 592 ; sub-progressive 

 formation of, 67. 



Specularia speculum, 327. 



Spencer, 6zZ' 



Spinacia oleracea, tricotyls, 391. 



Spiraea sorbifolia, 505. 



Spiral torsion, 368, 463, 527. 



Spirogyra, 642. 



Standfuss, 657. 



Stellaria graminea aurea, 271 ; 



Holostea apetala, 96. 

 Stirp, 590, 638. 

 Strawberry, "Reus van Zuidwyk," 



lOI. 



Striped sorts, 267. 



Sub- jrogressive formation of 



species, 67. 

 Subspecies, 60. 

 Succisa, 605. 

 Sugar-beet, brown, 606; fasci- 



ated, 507. 

 Svalof, 605. 

 Sycios angulota, 458. 

 Syncotylous intermediate races, 



466 ; race, isolation of, 469. 

 Syncotyly, 457. 



Tammes, 502. 

 Taraxacum officinale, 496. 

 Taxus baccata, iii; fastigiata, 



98. 

 Teratology, 21. 

 Tetracotyl, 346. 

 Tetragonia expansa, 32, 84, 502, 



514; forked, 374. 

 Tetrapoma, 331. 

 Teucrium Folium, 60. 

 Thoroughbred races, 423. 

 Thymus serpyllum, variegated, 



271. 

 Time, biological, 666. 

 Tomatoes, 102. 

 Torcnia, 612. 

 Torsions, heritable, 527; local, 



558; rare spiral, 537- 

 Tracy, 605. 



Tradescantia repens, 279. 

 Transgressive variability, 466, 



600. 



