74 
Cercis canadensis, 17 
chinensis, 17 
racemosa, 17 
reniformis, 17 
siliquastrum, 18 
Cherry, Cornelian, 2 
Cherry, Sargent, 7 
Cherries, Japanese, 5 
Weeping, 47 
Chinese Cotoneaster, 21, 56 
Chinese Pearl-bush, 18 
Chinese Poplars, 14 
Chinese Viburnums, 55 
Chionanthus virginica, 9 
Clematis dioscoreifolia, 57 
paniculata, 57 
Colorado Blue Spruce, 69 
Colutea arbor^scens, 50 
cilicica, 50 
orientalis, 50 
Coluteas, 50 
Cornelian Cherry, 2 
Cornus florida, var. pendula, 48 
mas, 2 
paucinervis, 50 
racemosa, 39 
sanguinea, 72 
Corylopsis, 3 
spicata, 3 
Veitchiana, 4 
Willmottiae, 4 
Cotinus, 35 
americanus, 35, 64 
coggygria, 35 
Cotoneaster adpressa, 23 
divaricata, 22, 56 
foveolata, 22 
horizontalis, 22 
var. perpusilla, 22 
hupehensis, 22 
multiflora var. calocarpa, 22 
nitans, 22 
racemiflora var. soongorica, 22, 56 
Cotoneasters, 21 
Chinese, 21, 56 
Crabapples, Asiatic, 11 
Crabs, Siberian, 12 
Cranberry-tree, 26 
Crataegus, dwarf species, 60 
. aprica, 60 
Crataegus arkansana, 16, 58 
Arnoldiana, 16, 54, 58 
Boyntonii, 67 
Buckleyi, 67 
intricata, 32 
mollis, 16, 58 
monogyna var. pendula varie- 
gata, 48 
var. pendula, 48 
nitida, 59 
pinnatifida, 54 
pruinosa, 59 
Smithii, 32 
submollis, 16 
succulenta, 59 
triflora, 32 
uniflora, 32 
Currant, Missouri, 8 
Yellow-flowered American, 8 
Cut-leaved Weeping Birch, 47 
'Cytisus nigricans, 51 
Daphne alpina, 24 
altaica, 24 
caucasica, 24 
Cneorum, 15 
genkwa, 15 
Mezereum, 15 
Daphnes, 15, 24 
Diervilla florida, var. venusta, 24 
Dirca palustris, 4 
Dwarf Hawthorns, 32 
Early Lilacs, 15 
Early summer Lilacs, 27 
Elm, Prickly, 43 
Elms, Weeping, 47 
Eucommia ulmoides, 44 
Euptelea Franchetii, 3 
polyandra, 3 
Evonymus alatus, 58 
Bungeanus, 60 
europaeus, 65 
var. ovatus, 66 
yedoensis, 65 
Exochorda Giraldii Wilsonii, 18 
Exochorda grandiflora, 18 
Korolkowii, 18 
macrantha, 18 
racemosa, 18 
