Part 1, 1922] 
Cerasus demissa melanocarpa see 
Padus melanocarpa 
Cerasus serotina see 
Padus virginiana 
Cercis canadensis 
P. cercidicola, 19 
P. Siliquastri, 43 
Chenopodium ambrosioides 
P. ambrosioides, 61 
Chionanthus virginica 
P, Chionanthi, 45 
Chrysanthemum sinense 
P,. Chrysanthemi, 61 
Cirsium arvense 
P. Cirsii, 34 
Cirsium undulatum 
P. Cirsii, 34 
Citrullus Citrullus 
P, citrullina, 16 
Citrullus vulgaris see 
Citrullus Citrullus 
Citrus Limonum 
P. Hesperidearum, 44 
Citrus sp. 
P. adusta, 22 
Clematis Viorna see 
Viorna Viorna 
Clethra alnifolia 
P. clethricola, 42 
Clinopodium vulgare 
P. decidua, 60 
Cnicus arvensis see 
Cirsium arvense 
Coccolobis uvifera 
P. Coccolobae, 71 
Coccolobis sp. 
P. Coccolobae, 71 
Collinsonia canadensis 
P. Collinsoniae, 63 
Commelina nudiflora 
P. commelinicola, 11 
Convallaria racemosa see 
Vagnera racemosa 
Convallaria stellata see 
Vagnera stellata 
Convolvulus panduratus see 
Ipomoea pandurata 
Cornus femina 
P. globifera, 42 
Cornus florida see 
Cynoxylon floridum 
Cornus paniculata see 
Cornus femina 
Corylus americana 
P. Coryli, 55 
Corylus rostrata 
P. corylaria, 74 
P. Coryli, 55 
Crataegus Calpodendron 
P. rubra, 40 
Crataegus erythropoda 
P. Crataegi, 68 
Crataegus Holmesiana see 
Crataegus villipes 
Crataegus praecox 
P. grisea, 44 
Crataegus sanguinea 
P. rubra, 40 £ 
PHYLLOSTICTACEAE 
Crataegus tomentosa see 
Crataegus Calpodendron 
Crataegus villipes 
P. Crataegi, 68 
Crataegus sp. 
P. Crataegi, 68 
P. solitaria, 41 
Crepis acuminata 
P, eximia, 66 
Croton lucidus 
P. portoricensis, 20 
Cucumis sativus 
P, Cucurbitacearum, 36 
.Cucurbita Pepo 
P. orbicularis, 36 
Cynoxylon floridum 
P. globifera, 42 
P. Starbaeckii, 69 
Cyrilla racemiflora 
P, Cyrillae, 42 
Dasystephana Andrewsii 
P. gentianaecola, 30 
Datura Stramonium 
P, hortorum, 34 
Decodon verticillatus 
P. Nesaeae, 37 
Delphinium multiflorum 
P. Delphinii, 64 
Dendropanax arboreum 
P. araliana, 48 
Desmodium see 
Meibomia 
Deutzia sp. 
P. Deutziae, 74 
Dictamnus albus 
P. Dictamni, 32 
Dictamnus Fraxinella see 
Dictamnus albus 
Diervilla Diervilla 
P. Diervillae, 74 
Diervilla trifida see 
Diervilla Diervilla 
Digitalis purpurea 
P. Digitalis, 36 
Dioscorea villosa 
P. Dioscoreae, 11 
Diospyros texana 
P. biformis, 49 
Dirca palustris 
P. Direae, 51 
Dodecatheon Meadia 
P. Dodecathei, 29 
Doellingeria umbellata 
P. astericola, 15 
Dracaena sp. 
P. maculicola, 28 
Epigaea repens 
P. Epigaeae, 42 
Erythrina micropteryx 
P. erythrinicola, 69 
Eucalyptus globulus 
P. extensa, 53 
Eucalyptus sp. 
P. extensa, 53 
Eugenia buxifolia 
Pp. Eugeniae, 21 
Euonymus americanus 
P. pallens, 20 
7 
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