466 
Olsson-Seffer, P., 227; Pantanelli, E., 
] 
159; Porsi d, M. P.,, 228; Prain, ; 
159; Rendle, A. B. 371; Richter. A., 
159; Rolfs, P. H., 80, 160; Rose, 5 
1593 i 
: Stickney, M. E. 
rd ce E. , 80; Strong, R. P., at 
Thiselton-Dyer, W., 1 159; Tracy, S. 
M., 160; Transeau, E. N., 372; Un- 
dé; 307; 
s Wolte, J. J.,227 
het is Se 2 es on ecological survey 
Penaigela 356 
, W., work of 81; “Physiology” 
Phacelia acanthominthoides 309; flac- 
23 
Phacopsis 356 
Phaeophyceae, alternation of generations 
3 
Phalaris, arundinacea, amphivasal bun- 
dies ‘Soa = of 5; nervata, nodes of 4 
Phellode n Sassafras 443 
Phaliogen i in Sassafras 441 
Philippine 
228; plants 
353 
Phleospora Ulmi 77 
Phieum ‘Ragtenaal re amphivasal bundles to 
Photic sense organs 220 
Pholiota 150 
Photosynthesis: — Sapper Pollacci 
a2: exits , Bernar do on 157, 
Macchiati on n 456 
Photosynthometer 2 
Phycomyces te, eee in 217 
dong a geen for 
a Mari ecological aia 20; 
pcbatitan { in 
Piceoxylon 1 
Pinus, fossil 151; Strobus, ecological 
anatomy 20; mycorhiza 32 
nusoxylon 15 
Pityoxylon 152 
i C. V., “North American species 
per, 
of Festuca” 354 
Pizzo zoni, P., on haustoria of Osyris 370 
ad 
US 327 
reeding in pris 363 
Platyschkuhria a 356 
Poa oailet 
Podoc 152 
Polarity ivy Tinlatod cells, Miche on 454 
Polemonium 150 
INDEX TO VOLUME XLI 
[JUNE 
Pollacci, G., on photosynthesis and elec- 
; on Leet plants 368 
; maritimum 327 
Polypodiaceae 147 
Ar atcanrvaceing Tobler on 455; violacea, 
life history of 425 
Pond, sis O; ae 21g, 220, 221, 226, 
359, 397 ; ae es 
Populus oe mycorhiza in 32 
Porsild, M. P., personal 22 
— resistant 369; scab 304; spray- 
ing 36 
r, R. L., on ecological survey 222 
Prain, D., person nal 159 
Prenanthella 356 
rving plants 
nie heterostyly in 304 
Prosopis pe ape 4 bits of water 277 
Proteids, formation o 
Protoplasm, streaming in Mucors 217 
Prucha, root ree ‘cmtees 
216 
Psilocarphus tenuis 292 
Pterobry 150 
teeter 150 
Puglisi, M., on transpiration of ever- 
greens 362 
Pinnatella 356 
Pyrenoids in Zygnema 44 
Pyrola 356 
Q 
Quercus spp., distribution and habits of 
445 
R 
Radium, and germination 217 
Radlkofer, work of 149 
Ranunculus 150, 151, 356 
Raphiolepis japonica, transpiration of 363 
i Sv! Sengaon : 
Reduc on of chromosomes 158; 1n 
Reduction division 
Regeneration 73; recent papers 
Reinhardt, M. O., on chemotropism A 
Renauld, oe on Musci exotici 150 
Rendle, A. B., personal 371 ~ 
’“ Aaand ges Flora”’451; Bor- 
gesen’s “Algal vegetation of Faerdese 
coasts” 71; ss’s ‘ Biotia: 
354; Chamberlain’s “ Methods in plant 
histology” 74; Christe ’s “In 
Filicum” 148, 355; Con tti’s ‘‘ Los 
géner nos’”’ 1473 
os vegetales mexican } 
Copeland’s “ Polypodiaceae and edible 
fungi” 147; Engler’s “ Natiirlichen 
