516 
On the Scena of cell shape in leaves 
eo ng shape, 51 
on mesentericus, 455 
Onloclea sensibilis, 39 
Ophioglossum vulgatum, 276, 365 
ie a 271° discata, 353; versicolor, 
Ceyeoneie asperifolia, 40 
Osmunda cinnamomea, 94; Claytoniana, 
94, 3653 “i 94, 39, 103, 104; spec- 
tabilis, 3 
Ostrya stare Baas te 3 
coccus eaicoen teh 40 
hi tela nea fo rae rommgaaty 276 
angium €, 270 
Paideulacta: acutiflora, 370; american 
370; arta 370; pallida, 370; saltidd 
Fernal 
Panicum Addieonit. 368; Bicknellii, dt 
69; dic 
depauperatum, 40, 368, 
mum, 369; linearifolium, 368; ae 
ionale, 369; Owenae, ro 369; san- 
guineum, 56; tennesseense, 369 
nel wie 
Past tiv. 
rae seein atanesae Tage 99; atropurpurea, 
ae 102; atropu rpurea cristata, 96; 
cre’ 99; flavens, 96; nivea, 96; 
te sha "06; idis 
Pemphis acidula, 270, 27t 
PENNELL, F. W. Notes on plants of the 
southern United States—IV, 477 
378 
Studies oh the vegetation 
of New York State—II The ides 
ion of a cial plun, 
anum sandwicense, 276 
Peziza auricula, 456; coronaria, | ~ cor- 
onaria macrocalyx, 85; Stev niana, 
phological variations in 
ext I 
Phegopteris Dryopteris, 207 
Phesopteris polypodioides,, Regeneration 
5! 
vulgaris, Correlation of mor- 
the seedling 
Philippine ae 451 
hlebia 455; reflexa, 456; 
' Physalis Alkekendi, 2 220, pee! 
Phytolacca decandra 155 
INDEX 
Picea ipa rs 37, 42;- mariana, 28, 
Pinus antec. a2. 37, 43} insularis, 
igida, 366; 
464; resinosa, 37, 42 
bus 
Strobus, 37, 42; ee ae 51 
Pisum sativum, 56, 65 
Plant population of rthern lower 
ichigan and its environment, The, 
Plantago sors 59, 68; major, 59, 68; 
tom 270 
Plat 
elite ily Oa A5I 
a tensi 
Polygonatum pe 0; 373 
ie m a 142; barbatum, 
452; chine ar ; maritimum, 378; 
panuiealdsgns laevigatum, 378; pen- 
sylvanicum n hilum, joe 
Polypogon littoralis, 275, 
Pol rus a us, 463; Bis omarginatus, 
404; atypus, 463; benguetensis; 464; 
Burtii, 463; carneus, . rpinus, 
463; cinereo-fuscus, 465; crispus, 4633 
dol 466; Elmeri, 468; fl , 463; 
Halesiae, 463; incarnatus, 46 es, 
464; laeticolor, 464; Lindheimeri, 463; 
luzonensis, 464; melano , H 
hrocroceus, hd pallescens, 463; 
roseus, 466; rufo-pallidus, 466; spadi- 
ceus, 467; ib cercas, 463; tabacinus, 
Polyporea 
Pelystiotne ee 466; atypus, 464; 
barbatus, 467; be bactbnin 464; 
cervino-gilvus, 463; microcyclus, 467; 
perpusillus, 466; rubritinctus, 466; 
ite Rt 467; Hoe tidy 467; tabaci- 
nus, 467; tabacin barbatus, 467; . 
tabacinus Sekutyssaa: 467; xeram- 
pelinus, 46 
Pongamia glabra, 270 
opulus balsamifera, — grandidentata, 
33, 37; tremuloides, 33, 37 
Portulaca oleracea, rigs 5 
otamoge ianus, 367; pecti- 
natus, 367; pulcher, 36 
as 
Paar Gaudichaudi, 500; spp., >is 
Proso os juliflora, 276, : 
maritim: 381; pennsylvanica, 
33, 395 “pumila, 33 
Pteris aquilina, 38, 94; argyraea, 97, 102; 
cretica se eata, 96, 97, 101, 102; 
gmantiana, 96; Parkeri, 97; quad- 
riaurita gbreed, 96; serrulata, 94, 97; 
sulcata, 96, 97, 102 : 
Puccineae, 
adducta, 148; a 146; 
Ciberti, 454; aie 146; Eriophori, 
144; Heliconiae, 
eon in 4545 
