1916] 
Okamura, S. ae of 510 
Ompha npn 
51 ch 
untia, new species of 81 
: Gicadis 515 
Oreocarya dura 144; propria 145 
Orobanche 333 
Orthogenetic saltation 247 
| 
Osterhout, G, E., of 81 
Oxidase, and cat 09; mechanism 
of action 53; ction DS 303 
Oxalis, color inheritance in 162 
F 
aoa gs 510 
Pachypatella 515 
anicum 511 
Parahydraeomyces 514 
Pareugenia 515 
Parthenium Lloydii 80 
cig Pe eee and fertilization, arti- 
ficial 2 
Pato uillard, N., work of 513 
Patrogenesis 331 
n, i. W. ork of 85 
eat, allocthonous OFT F Florida 32 
Peranema, morphol 
Periodicity in oer trees 244 
Beamaability x ty 165 
Peroxidases, mode of action of plant 233 
Petalonema_ 
5 eee hee ae, bubble method in 
421 
Proneutens 55 
Phiscuniotballe 
Phyl val ad: Peat 164 
Physiological chemist, textbook of 240 
Pilger, R., work o 
Piper, 
cite bby reanules anatomy 
1155 umbellatum, vascular anatomy 
Pittier, *H., work of 82, 5 
Pittosporum, ci pheboer: ot f 168 
Plagiobothrys foliaceus 143; Harknessii 
143 
Plagiochasma 88, 511 
INDEX TO VOLUME LXII 
Plant anatomy 243 
Plant diseases 160 
Plant diseases and bacteria 159 
Pleonosporium Borrei, susceptibility 
ee 
Plu 
Pollen, ‘sterile i in Rubus 370; sterility and 
bytes 335; sterility in Onagraceae 
Pobyeyeina 515 
Pol 333 
Bolvechoniee Hicowiy Aen gradients 107 
ool, V. W., work of 3 
Potato, fe oo of chess 167; rot and 
wilt of 1 
Pratt, O. A. work “i 167 
-J.4 
Pseudocrossidium vg 
Pseudoparmelia 512 
Pseudoscinaia 514 - 
Pyrus, new species of 81 
Quadrasia 510 
Queenslandiella 510 
arte a new species from lower Cali- 
fornia 81 
tain craccland 70 
o 
Ramaley, F. 
Renner, O., work of 3 
Reviews: Child’s “«Pndividuality in or- 
nklin’s ‘Heredity 
” “Soils 
of 
plants” 160; Mathew’s « Physiologi- 
cal chemi emistry 240; Russell’s 
croscopy of vege * 242 
Rheosporangium 510 
Rhizopus nigricans, chemotropism in 337 
Rhopographina 515 
Rigg, G. B. 332, 336 
