336 
bi lori € oar Notes on an experiment” with 
ne 60 
incanus 60 Pourthinea yess 222 
tnodorus 6' pratt, G. D, 
latifolius 60 t, Mrs "G. bet 07, 108 
emoinei 60 haere see Meteorology 
Nuée Blanche 61 Prickly-pears at Apalachicola, Collect- 
alee 61 ing (Pl. 208) 1 
@ 61 Products a northern South America, 
Salman 61 The botany and ‘lan 
sericanthus 61 
Voie Lactée 62 cerastfera 315 
Philonotis 301 raafaed 
Phlox Drummondii 4 Srutico. 
subulat glonduiose Bib 
homa 1 es 
Phylloca rahal 
Phytopathology tag maritim 
OPUS 42 S52 aximowiczit 316 
Picard, Mauri 263 pendula 11 
Picea Omorika 15 pennsylvanica 316 
orient 160 . ir BE: o 
Bold 1 oo, ervulat 
un gen. 
316-31 
subhirielle 114, a 
tomentosa 318 
Picramnia pentandra 282 Pseudotsuga mucronata 163 
Pine Plantation, A Red Psoralea 114 
‘inus Cembra 1 Pu blicatione of the staff, scholars and 
kovaiensis 164 students of the New York Botanical 
montana 164 arden during the year 1917 51 
nigra 164 Purchases (see also Donors and Ex- 
parviflora 164 changes) 
Peuce 164 ae Elam 68 
vesinosa 105, 164 ‘ash, e . 175 
Sabiniana 16: Ferris. s. R. S. 2 
Strobus 164 pao ‘Walter Te 
sylvestris 164 Teller, A. - Ps 
Thunbergit 164 aire, R. 
Pisonia 76 urpus, C. * ae 
Pittier, H. 185 eller, S. M. 
Plane- tree I10 Purdiaea 99 
7 hAmer-  Pyrus 193 
a, The botany and 182 betulaefolia 193 
Plantation, A red pie 105 communis 193 
Platanus acerifoli 
occidentali. TO" Quercus 123, 131, 137, 286 
Pluchea odorata 280 Quero, F. G. 264 
Plum 315, a7 Quince, eg 193 , 
Polygala 121, 127 Japan 193 
Poly. Hi chum acrostichoides 70 
eee - ine W. 264 
Pond, R W. 26. Raimannia Drummondii 4 
Po bt fie ut Rainfall see Meteorology 
Por 62, 204, 207 and, E. E. 264 
Po abs 
290 Re nd, F. V. 264 
Possibilities of the truffle industry in Romuncalus ae 
America 307 Rapan 
