) 
532 
New York, Le pion of 352 
Nitrogen, = 349; sstatioih of semi- 
arid so 
North Miran flora 255, 516 
O 
Oenothera 175 
Olive, E. sti nig of 175 
Cnneiucdie 
Organic nutrition of plants 
Osmotic re in PPS ne host 345 
Osmunda, a apogamy i 435 
Otis, C. H., work of 88, 352 
Oxidase Ses 5 
r 
ie tere a oe 273; byssina 270; 
pallidula 268 
; nigra 275; 
Pupasite me pies osmotic pressure in 345 
ioe? ae 
Passiflor 
eee icky ie 
Payson, E. B. 795 work e 341 
Peltier, = L., work of 1 
Pennell, F, W., Tata of oes, 528 
w method of studying 
306; of cal wails of Allium 509; of pro- 
ete dh 3 
Petalostemum 440 
Phacelia 
Phaes 
Phegopte Say 
Sgeoatiet phe aimed of 206 
Phot rain = of dust on 349 
Somat: trichum 
t, F. L., work of 351 
Pilea 17 
Pine, Hepa of Virginia and the wera 
—— of longleaf 49 
Pis tillart 
Plant a iay. Se to 168 
Platanus, w 480 
Po lakiastru 175 
Pollen cakes and i ia es ak Iris 159 
Polygonatum 34 
Potamogeton ae 
ease iy of 230 
Prunus latidentata trichostoma 72 
Pseudopohlia 528 
Puccinia 528 
INDEX TO VOLUME LXIV 
[DECEMBER 
Pulling, H., work of 168 
Pyrenothrix nigra 513 
Quercus alba, ray tracheids in 437 
R 
nales one anatomy of 3 
ae 64 
Re Jason in ucts es 437 
ecor A377 
eh G. B., work of 523 
en , work of 175; 261 
Resin pects 
Respiration 351; 
4 
Reviews: Atkins’ 
] rrhiza 441 _ 
effect of sin sre dioxide 
“Researches in plant 
H 
Romeli, L., 
Rondeletia 54,53 
t, of Balsamorrhiza 4 52; rot of Texas 
eee systems of desert plants 5 
R 84; landulosa 75; Maire 
plurijuga 743 — yunnanensis 77 
Rose, D. H. 521 
Rubus ‘eatictan 73 
Rudbeckia 
Rumbold, Caroline 250 
Russula 440 
Rydberg, P. A., work of 84 
5 
Salix Balfouriana 137; brachista 144; 
caloneura I41; dibapha 146; Faxon- 
iana 143; tiana 139; ener 
Guebrian 
rosa 142; tenella 137; wolohoensis 14 
