55° 
arish, S. B., work of 159 
Parosela 159 
Paroxygraphis 160 
Parthenogenesis in Bennettites 164; in 
ucus 16 
Pascher, A., ‘Die Siisswasser-Flora” 
: 538 
Patagonia, grasses of 159 
Paterdecolysus 157 
Peloploca 
Pe tg oud ‘“*Paleontologie végé- 
tale’ 
42 
-ennell, F. bal work of 159 
: 
Pentameris 
Petry, C i 
Pfeiffer, Norma E. 12 
feiffer, Wanda M. 154 
-haeolabrella 1 
-haeopolynem: 
-hilippines, Pasiiencrane of 344; new 
Pilobolus reactions to light stimuli 89 
aa s radiata, sit BK gv tnstabiity 
314 
Pinus, spur = of Ps tracheid- 
caliber in 288; 
Pithecolobium AP Ob et 410 
Pityoxylon 82 
Plant geography, experimentation in 542 
ant phyla 256 
Plantaginaceae 
: at scabdoats vac anatomy of 343 
Platys 4. 
q europteropyrum IS7 
Poison weed 16 
Polhysterium 160 
] "olygonaceae I “4 
ed geet 
pulus 
orl pl: life history of 320 
: —_ Otto, work of 
Prai , an pr aipe $ 341 
Pritcha irdia 1 
P. peeve of ee 228; xerophy- 
oo 10:2 
senda AEE 156 
Mader ewriee 156 
INDEX TO VOLUME LVII 
[JUNE 
~ sik a . verisign Islands 159 
Pterosperm 
Puccinia nn 250; Podophylli 250 
Pycnothyrium 156 
Pyrola 155 
Q 
ee ferns 252 
Quehl, L., work of 1 
Quercus, tachelt-caltber in 302 
R 
Radiospermum 439 
Rainfall and soil es 338 
Ramaley, Francis 
Ran sis culaceae, aprons of 168 
336 
Rayn 0) 
Rela algae, sto 136 
Reed, G. B 
Re hm, H., face of 1 
plan ts” 532;  Burns’s 
trees” BE: Christensen’s “Index F Vili. 
cum” ; Cook’s “Diseases of tropi- 
cal plants 3343 Pleas s Bei ge 
pillarana 
oh 
Erblichkeitslehre” 2395 
flanzen physiologie”’ 333; Merrill’s 
Otis’s 
s 
og cause 
plant diseases” AD 45 Stirm’s ** Chem- 
ische Techno Pe pre imesn o 
437; Trier’s e Pflanzen- 
pers n”’ 74; Wilso cr pet ose in 
estern an 
Rhizo zopus 
n fro 
pieleate dens "of Tate Gans 256 
Rhodoseptoria 159 
Ridley hey Ne work of 159 
Riede felia 
Robinson, WW. J., work of 159 
pore of 156, 159, 160 
eae c O., work of 156 
Rothert , Wla dislaw, w ork of 444 
Rubus 241; : leptosepalus 4 21 
