sie 
INDEX. 
Nyssa = + ii, 236 Penthorum cs 
: _ Pentstemon . 
Peplis in 
wd Periploce — 
Obolaria ¥ 103 Petalostemon 2 : 
(Enanthe = 189 Peucedanum: 86k ss 
nothera a 245 Phaca o : 
Oldenlandia m 5y Phacelia SoG 
Olea = Phathusa - Se 
Onoclea - ii. 249 Phalangium es gat 
Onosmodium 1135 Phalaris - ai EE 
Ophioglossum ii, 248 Phaseolus <a eee 
Ophiorrhiza 134 Philadelphus - 300 
. oplotheca - ii. 78  Philoxerus < ee ee 
Orchis : ii. 188 Phleum e 50 
Origanum - ii, 34 phlox - 125 
Ornithogalum 221 phryma = 4G 
_ Ornus = - § Phyllactis 2 
Orobanche - ii. 58 Phyllanthus # 
Orobus _ 2 ii 95 Physalis - | - 
- Orontium ft 226 Phytolacca oa 
Orthopogon __ 55 Pinguieula * © 
Orthocarpus - ii, 56 Pinckneya — 
Oryzopsis *: 59 © Pinus - 
" Osmunda ¢ li. 250 Pistia ai 
“ Ostrya - ii. 219 Pisum an % 
_ Oxalis - 292 Planera = 
Oxycoccus - 250 Plantago zh 
Oxydenia 76 =Platanus - 
Oxytropis - n. 98 — ee. =" 
P Podalytia (2 Baptisia,) 2 Z 
gel a Podophylium = = i. om 
Pachysandra - ii. 207 Podostemum “oj 202 
- Panax ie oo 175. Pogonia oes : 
Pancratiu 213 Polemonium 
Panicum ~ .. - 52. Polyearpon - 89 
paver — iis 9 Polycnemum ~ 2. 
Parietaria ii, 208 + Polygala he 
Paronychia ¢ Any aehia } 159 Polygonatum — 2. 
Parnassia 205 Polygonum — 254 
-Parthenium - iis 183. Polymnia 
Paspalum - 56 Polypodium 
Passiflora + > ii. 77 Polypogon 
Pastinaca 184 = =©Polypremum_ 
Pedicularis. ies oa te 50 : pS 
a 
