1915] INDEX TO VOLUME LIX 511 
mm 
Treboux, O., work of 79 
‘Tree growth 342, 424 
Trelease, W. work of 341 
i es 341 
ee. ae. Ay ae | . 
Tucson, vegetation about 504 
furesson, G., work of 422 
Turneraceae 342 
U 
Ulbrich, E., work of 341 
Urban, I., work of 342 
V 
Van Leeuwen, W., work of 80 
6 
it 7 
Von Faber, F. C., work of 61, 63 
W 
Washington, ferns of 258 
5 
Waterman, H. J., work of 413, 415 
ort 504 
Water bg Sgn of ie 69 
Weaver, J. E., work of 7 
bee pes ecological study of 259; manual 
3 
Wehmer, C., work of 4 
Wernham, H.F és ork of 77, 342 
West Indian mosses 336 
Winge, work of 3 
Wisconsin, parasitic una of 79 
Wollenweber , H. W., work of 342 
Wood sieic tu re and Aefoiaton 261 
Woronichin, N., work of 3 
x 
Xanthium, inflorescences of 1 ae physi- 
a lemlarion of types 4 
. Xyris 3 
43 
Yendo, Ge , work of 342 
Yucca 
Z 
Zellner, J., work of 76 
