yatta japonicus 73 Parosela Dalea 64, 65 
aceae Parsons, H. G. 
oe. ublications during 1918 100 
Ole: apa Family I3I Perthenocisus ae uefolia 110 
Olive 61, 77, 82, 83, 84 uspidat 
Olive Family 223 Pleats ieee 199 
Olive, Wild 197 Pa iebieien iene 
Opuntia 152, 157, I Patterson, Flora” W. 148 
ammophila (Pl. er 21, 25, 29,38, Peachi 
ausirina 22, 25, 28, 290, 38, 39, 200 Pea-tree 42, oe 
ar fetes 23 Peary, 
Bentonti 33, 34 Pennell, F WW. on I42, 144, 186, 209 
wrasiliensis 25, 38 Co llections by 49 
Dillenii 25, 32, 33, 38, 39, pl. 224, Publications during 1918 100 
225 PENNELL, F. 
Pennoni 25, 27, 28, 29, 36, 38, me boo ks from ne a a 
pis aaen ay multi Oru 
MiGUS-INGICE 25, 30, 31, 32, 38 Ony 77, 2, B41 
Hei ss 36 eet ih 146, I47 
hiring 
hexensis - Se ig 28, 31, 38,39 Per 
lata 25,2 Petalostemon an af Parasela, ae ae of 
1 64 
mariti se 3 plants aiid betwee 
Pes-cor Peialostemon carnium 206 
Po Nardi cs ie 38, 39 Pethybridge, G. oe 263, 169 
polyantha 33, 35 riGiaiog axillaris 
spinalba 2 x 
stricia 25, 33, 34, 38, 39 Senet tical oo 207 
vulgaris 28 Phellodendron amurense 43 
zebrina 25, 35, (Pl. 226) 36, 38, 39 tian ee 
Orange, Osage achalin 
Trifoliate 44 Phillyrea angustifolia 235 
Orchid 85, 134, 156, 158 Phlox Drummondii 199 
Oriental lotus 231 — Charles II8, 119, 120, 122, 
plane 61, 77 
poppy 76, 77 Pieris lege 167 
Oriole 161 japonica I 
Orton, C. R. 169 Pigeon-plum — (P1. 236) 192 
Osage orange 72 : Pine 61, 62 
Osborn, H. F. 126 Black 1 199 
Osmanthus 197 Digger 127, 128 
Otto, Friedrich 117 nd 197, 19 
Owl, Acadian 161 Yellow wee 200 
h r6r Pineapple 
Oxalis 156 a oe IQ4 
Oxydendrum arboreum 221% Pink 76, 
Mar: “ 194, 
Pachano, Cees 157 Pinus Puen 107; 199 
Padus na. aie 200 
Padus is enue I27 
ieee IL penal i 
Pagoda T: Pitcher-plant 120 
Paliurus Pattara paaye] Plane, Oriental 61, 77 
Palm 79, 196 Plane-tree 84, 154 
ilver = 6 Plane, History of the London 216 
——— Sav 196 Plant forms used in be esign, The exhibi- 
tion of (Pls. 230, 231) 75 
Paper eran Eeyption 43 Piants in pei Sea. The use of 
40 
Papyrus 82-8. 
