1911] 
M mee 319 
Monarthrocarpus 398 
M a rick 308 
Mo 
M thlenthaler, F., work of 157 
Mucorales 74 
Murrill, W. A., work of 73, 398 
M Giations in nature 407 
Myrsinaceae 
Myxomycetes 74 
Natiirlichen Pflanzenfamilien 396 
Necepsia 399 
Né 
, B., “Das Problem der Befruch- 
tungsvorgiinge” 303; work of 151, 
Nevada, nace lichens of 286; lupines 
Now ‘Gain 
Nicolas, G,, "ork o 
Nieuwlan dy JcA ral 398 
Niklewski, Fades eg ne ot 77 
North American Flora 306 
North Dakota, plants of 397 
seo, in Closterium 401; discovery of 
of Puccinia podophylli 463; 
irr ipleid 158 
O 
Oats, ergot on 64 
Oeno ~— | biennis s under ovarial treat- 
men amarckiana, early cultiva- 
tion i description of I 36; reduction 
31 
work of 320 
Osmotic pressure ‘a leaves 77 
Ostenfeld, 
ed 
runiaceae a 
Oxidation of hydrogen 77 
P 
que, E., work of 7 
Paladin, W., work oe 75, 78 
iser, L , work of 306 
Paraguay, Rene yl e 307 
Parish, S. B., work of 3 
Parthenium, morphology of 80 
Seige ps m Leo 
ax, abe Spa 308 
Pearso 4, Ww. ork of 79 
Peat papers in Florida 316 
INDEX TO VOLUME LI 
Peckiness 73 
fax M., work of 233 
Penhallow Ww, David Pearce 142 
gee in 399 
flanzenreich 3 
hilippines, araicos of 397; Cleisos- 
tonia ig 397; forests of 312; Laura- 
396; Leguminosae of 308; 
ee Fr Sar net gr i 
4 
fat 73, 398 
s, E. P., work of 74 
Phillipe’ EeJ: 385 
Philo — 3 
loem, of Juglandaceae 131 
Ph 
Pancho 4 470, 475; and chloro- 
Pinus el ich: sprouting 385 
Piper Betel, o Stee om tissue of ee 
tosis of stamen n Hypericum 230 
us gemmata ae 
a oatyag ae doe in United States 69 
Plantae Seleri 
Pity a 
Pleurage, spores of 369 
Pol ypodiacene, qinbedded sexual cells in 
443 
Polyporus 73, 398 
Polystichum crbosenggs! 3533 lacerum 
3523 hlamys mollicul 
Oni 353; woodubalaee 354 
- 77,4 
Pepin 
us 396 
eridium aquiliaum, starch of 357 
Sas cretica subse - As 
ata, im ed sexual cells 
Puccinia podophylli, acuta we we 
Pygmaeopremna 39 
iid te 
gage 
cris- 
ssa L., work of 74, 398 
ueva, re work of 318 
