1912] 
apn B. L., work of 359 
nec. B. , work of 78, 359 
ork of 78 
Romanzoffia unalaschcensis 510 
pss parasites 8 
Rosenstock, E., work of 78 
Rubus 75 
Rusts, biology of 79, 517; of Guatlaame 
358 
N) 
Saccardo, P. A., — of 78 
Sambucus ferax 
f 
Sar argassum, ¢ an in 265 
Saul, E., work of 182 
Schapos shane ff, Walk., work of 450 
Sc niedeophytum 79 
chiffne 
Schizostac 
Schlechter, R., sg 
ee "os aie Hand- 
Sc te ia, O., work of 452 
c 
ryver, 
huster, J., work of 452 
ineae 79 
nfluence on 
O4, 390; of Leitneria 196; 0 
ro ones 
“Webster ‘Canadian 358; Suksdorfii 511; 
Fossil plants”’ 353 
Shear, C. L. , wor ork of 7 
Sherff, Earl E. 415; work of 359 | 
mek, B., work of 1 
Shull, Geo. H. 
Silver-leaf disease 274 
Sinnott, E. ba bead 523 
Siphonochi 
Sko Iki ie fan Fegetation of 415 
Smilax glauca, parasitized leaves 376 
Smith, ee G., work of 349, 350 
Smyth, B a: work of 276 
Snow, ‘ula 1 
Soil, moistu ve “A cottonwood dune 
association 512; solution 351; water 
and plant distri ee is 
Shasuns, mycor 
Sommerstorff, H., werk ot ies 
INDEX TO VOLUME LIII 
South Africa, hc of 360 
Speight, R., work of 184 
he esis, in vecuicls 266; in 
a 445 
Spilant thes 
Spithense, “si seeped of 448 
ue, T. wo 
Stapf, i work of 78, 359 
hadeene 415 
Sum ce work of 273 
S han 
cidewicge X, work of 3 
and :. work a 78, 359 
G. 
s 
Tansley = G., ‘“‘Types of British 
vegite ation” 348 
Tar araxacum, " fettilization i in 262 
ypophylla, freer of 4 
° eae as oe He 
Tens and mech 
Tends formation of eet tissue 
Tens for secondary schools 515 
oday, Mary G., eg of 188, 263 
work of 272 
ia 78 
Trichomanes, vestigial axillary strands 
Trifolium 358 
Treub, M., work o vlly 
Trees, food r ot 272; New Eng- 
land 355; in Beto to light 261 
Umbellifera 
Urban, Tenati, Naa Antillanae”’ 
516; work of 7 
