1906] 
Scab, apple 238 
Schaffner, mes 1. H, death of 80 
Schizomeryta 237 
Schjerning, H.,.on Bagi . ie ae 
Schlechter, R. 502 156 6 226 
Schmidt , Jo ohann ree ae 
Schneider, C. K., Ilustriertes Handbuch 
Hes 
Schoene, Kurt, on moss rhizoids 502 
Spsiner. Oswald, on absorption of sol- 
utes Pe soils 398 
Schrenk, Hermann von, personal 80 
ae ie est m4 sterilized soil 502 
Schwacke, -Wilhelm, personal 80 
-., Joep on seeds of Euphor- 
biace 
le cden, S., on ascent of water 150 
Scion and stoc 399 
Sclerotinia fructigena 317; on Forsythia 
eae 7 G., on apical meristems of 
ahem personal 79, 400, 503, 504; 
nating spores in Stauropteris 
2 
Scott, wage on megaspore of Lepido- 
strobus 
Scrub, in os — 233 
Secretion, mechanis 
Seed coats, rdle in anid germination 
Euphorbiaceae 77; Sarracenia 
“1173 arent y 72 
= g 70; Sarracenia 117 
- Selby, = D. on ‘tiolaton n 318 
Sen Farriae le 
necio 
Sequoia, fossil roots 
Seward, A. C., person nj 503; on Arau- 
carieae 224; on Cycads 235 
Sex, differentiation of 161; in Mucorales 
eee 
Shantz, H, L. 16, 179; personal 79 
Sheldon, J. L., on mummy disease of 
guavas 
Shreve, Forrest a aera 160 
nad George H. 60, 66, 68, 69, 74, 500 
_ Slosson, Margaret, tee rll grow 496 
Smith, Clayton O. 
Smith, Elizabeth a 
Smith, oat Donnell 
Smith, Ralph E. 215; ae tomato disease 
64 
_o egies bald, work of 312 
Soils, absorption of solutes 398;  steril- 
ized 502 
oe, cultures 399: physiologically 
27 
Cereus 65 
INDEX TO VOLUME XLII 
513 
erms, Cycas 73 
Sphagna, lime and 236 
Sphenopholis 226 
Sphenophyllum, sri aed 158 
Sphenopteris Héninghausi 314 
Spindle formation, Polgeiphions 428 
Spiranthes 226 
oni Bote hium 235; fossil germi- 
ae 238; Riccia glauca 228;. The- 
A5e 
Sporobolus 1 
Sporodinia = sex 167 
Stapf, O., k of 226 
Stangea 1 ie 
Starch, nature 157 
pepe -Obthaaala: germinating 
yank: 
res 2 
ok op on ascent of water 151 
orairdcenth 225 
Stenandriopsis 156 
Sterigmatocytis nigra, temperature and 
6 
stevens, f. ce on tobacco wilt 6 
Stevens, W. c. on spores of mowyckasd 
235 
Stock and scion 399 
Stoklasa, J., on oe 233 
Ss, on trition f gymno- 
sperm eggs” 230 
Strasburger, E., on ascent of water 150 
ak yg wot aX 237 
Sval6f Experiment Station 500 
Synapsis and reduction 229 
Taiwan: 
Tang 55 rote personal 80 
angium Scotti 314 
hei erature, and flowering of fruit trees 
Te 
31 18: and resis ction 
Testa, Dioo Zamia 334 
Tetraspore, Poleinhons 403, 420 
Thaxter, nog nd, personal 503 
Thayeria 
Phecotheus Pelletieri, ascocarp and 
pore-formation A 
Thermal death- 397 
Thlaspi — pach germination 282 
Thoday, D., on heterospory in Spheno- 
hyllum 1 =. 
Tibouchina — 293 
Timber, decay 23 
Tischer, G., on sierile a ie hybrid - 
Tobacco, disease 64. 313; varieti 
399 
— mato, disease 64 
Townsonia 496 
Toxic action and temperatur 
Trees, Amazon region 497; — 312 
