416 
“Lehrbuch der dkologischen Pflanzen- 
geographie” 407; Hall’s “Handbook 
f Yosemite National irae Bast 
Lieske’s ‘‘Mo logi d 
der Strahlenpilze eee 
“‘Osmotische Unter- 
alis ’s n 
srtitontlicl and 
109; Sharp’s 
the 
reproduction of plants” 
tology” 331; Simp- 
“Int troduction to cy 
for Warmin, 
“Lehrbuch der Skolt Piniioe- 
graphie’ 
Rhodophyceae of Danish West Indies 410 
ers 50 
Root, development of wheat seedlings 
404; pectic materials in gets 313, effect 
of direct current on tip 1 
un 
Rubus in New ak RE ‘336 
ussula 182 
Rusts, new or rare meee of 39 
Rydberg, P. A., work of 410 
S 
Salisbury, E. J., “An introduction to the 
structure and — of plants” 
Sali, ‘amyadalodes 236; caudata parvi- 
225; Gooddingii 227; laevigata 
pone 234; lasiandra 222; lasiandra 
Abramsi 224; lesa Wardii 2353 
lucida ebiathe rissima 
eella 
Schlechter, R., ae of 182, 410 
Foor t of location upon germina- 
Seedling development, chemistry of 1 
Seifriz, ork of 183 ie 6a, 
W., 
Sex deeecitation ee cea 408 
woe dimorphism in Cunninghamella 
Sian. L. W., “Introduction to cytology” 
I 
aia ud 
Shore p . Hlasiotopi 112 
road, 0 rs M., 
Shull, C. A. 407, rd 
Simpson, C. T., “In Lower Florida 
39 
INDEX TO VOLUME LXXII 
[DECEMBER 1921 
Souéges, R. M., ges of 56 
Smiley, Edwina W., “Dictionary of 
tictasical ecivalents” IIo 
Spencer, E 265 
Spiranthes 410 
Stakman, E. C2 
Standley, P. C., ne of 51 
Stapf, O., wor 
Stenodrepa num 
Stipa, Australian ahectes of 5 
pero tic phenomena, tla seiGenttot of 
- 
LEA, germination of 173 
etra 
Trachelosiphon 411 
release, W., work of 51 
Turesson, G., work of 112 
Unwin, A. H., “West African forests” 
202 
Urediniospores, germination of 173 
V 
Virgin soil, invasion of 305 
W 
Ward, F. K., work of 4 
rming iy “Lehrbuch = need 
hie’ 
ol 54 
Wheat geht, root abhor ae of 404 
White mold of Brazil nut 276 
hse H. a 
t, J., work of 333 
Willstatter R., gine of 332 
inge, O., work of 111 
= 
Yamanouchi, S. go 
Yo = a National Park, handbook of 
Vacehee T. G., work of 51 
Z 
Zeleny, C., work of 179 
