73 
Orange, Mock, 41, 42 
Oxydendrum arboreum, 59 
Paddock Elms, 49 
Pagoda-tree, Chinese, 62 
Parkman Crab, 15 
Peach, Chinese, 2 
Peach-trees, 2 
Pears, Kieffer, 12 
Leconte, 12 
Sand, 12 
Pear-trees, Chinese, 12 
early-flowering, 11, 12 ' 
Pecan-tree, 2 
Persian Lilac, 21 
Philadelphus, 41, 42, 43 
Chinese, 42 
Hybrid, 42, 43 
Lemoine Hybrid, 43 
Souvenir de Billard, 42, 43 
argyrocalyx, 60 
coronarius, 41, 42 
cymosus, 43 
Conquete, 43 
Mer de Glace, 43 
Norma, 43 
Nuee Blanche, 43 
Perle Blanche, 43 
Rosace, 43 
Voie Lacte, 43 
Falconeri, 42 
grandijiorus, 42 
inodorus, 42 
insignis, 43, 60 
latifolius, 42 
Lemoinei, 43 
Magdalen ae, 42 
maximus, 43 
microphyllus, 42 
pekinensis, 42 
polyanthus, 43 
Gerbe de Neige, 43 
Pavilion Blanc, 43 
pubescens, 42 
purpurascens, 42 
splendens, 43 
virginalis, 43 
Argentina, 43 
Bouquet Blanc, 43 
Glacier, 43 
Philadelphus Virginal, 43 
Picea Breweriana, 5 
Engelmannii, 65, 66 
glauca, 
var. albertiana conica, 65, 68 
Glehnii, 65, 67 
omorika, 65, 66 
Picea pungens, 66 
Sargentii, 6 
Pieris floribunda, 7 
Pine, Japanese Black, 6 
Japanese Umbrella, 5 
Scotch, 6 
White, 1, 62 
Pinus sinensis, 5, 6 
var. densata, 6 
var. yunnanensis, 6 
Strobus, 1 
sylvestris, 6 
Thunbergii, 6 
Plum, Canada, 8 
Sand, 8 
Plums, American, 8 
Plum-trees, 8 
some American, 64 
Poplar-trees, 2 
Populus laurifolia, 2 
Maximowiczii, 2 
Simonii, 2 
Prinsepia sinensis, 3, 4 
Pruinrosae Thorns, 28 
Prunus alleghaniensis, 8 
americana, 8 
angustifolia, 64 
concinna, 8 
Davidiana, 2 
hortulana, 8, 64 
incisa, 12 
maritima, 8 
Munsoniana, 8 
nigra, 8 
Reverchonii, 62 
salicina, 8 
serrulata var. sachalinensis, 8 
subhirtella, 7 
var. ascendens, 7 
subhirtella pendula, 7 
Watsonsii, 8 
Pyrus Calleryana, 12 
serotina, 12 
