1910.] 



NATURAL SCIENCES OF PHILADELPHIA. 



701 



Copper 455 



Cordillacris affinis 12 



occipitalis 12 



Coregonus 40G 



Cornus alternifolia 5S1 



Corylus americana 546, 561 



Coryphaena equiselis 601 



1 dppurus 60 1 



Crataegus 150-253 



accincta 151, 154 



advena 165, 175 



agaia 247, 252 



alacris 188 



aliena 151, 157 



alpista 230, 238 



ambigens 189, 191 



ampliata 189, 195 



amplifica 165, 172 



angulata 164, 166 



angustisepala 208, 209 



antheina 209, 213 



apposita 229, 235 



arcana 164, 169, 180 



bedf ordensia 165, 185 



bellatula 164, 171 



blairensis 189, 193 



brownii 222, 226 



burkeana 218, 218 



callista 230, 237 



calnes cens 1 58 , 1 59 



chapmani var. plukenetii 21ft 



circur 235 



coccinea 222 



c. var. rotimdifolia 222 



coerulea 190, 207 



cognata 185 



compta 188 



confusa 229, 235 



conjuncta 166, 186 



contortula 229, 236 



crawfordiana 164, 169 



cristata 218, 220 



crocata 15.9 



crus-galli 151, 152, 153 



cydonia 15.9 



dacrioidea 222, 224 



delectata 189, 200 



denudata 165, 173 



diaphora 247, 251 



diffusa 188 



dissona 188, 189, 195 



divisifolia 165, 179 



dodgei 222, 223 



dunmorensis 165, 174 



duracina 166, 186 



eburnea 151, 156 



edurescens 165, 180 



effera 190, 206 



ellwangeriana 217 



errata 244, 245 



erubescens 165, 178 



felix 191 



Crataegus flammata 209, 211 



fortunata 230, 239 



fructuosa 229, 232 



gaudens 164, 170 



glandulosa 222 



glaucophylla 209, 211 



gratiosa 230, 243 



grossa 222, 223 



heidelbergensis 209, 215 



holmesiana 218, 221 



horrida 222 



ignava 222, 228 



impervia 189, 197 



incompta 165, 183 



infensa 189, 201 



insolita 211 



intricata 229, 235 



jenningsii 230, 241 



kinzera? 229, 234 



ltetans 190, 205 



ketifica 247, 250 



hetula 229, 233 



latifrons 165, 181 



lecta 166, 186 



leimonia 189, 194 



leiophvlla 165, 175 



leptalea 229, 231 



luteola 230,240 



luxuriosa 189, 198 



maineana 188 



margaretta 226 



medioxima 189, 190 



moselemensis 158 



m. corrugata 158 



olivacea 151, 153 



opulens 188 



pedicellata 218, 219 



pennsylvanica 216 



phlebodia 151, 155 



pinna tifida 180 



porrecta 158, 162 



prsestens 158, 162 



propensa 209, 214 



propixa 247, 248 



punctata 158, 162 



p. mutabilis 158 



p. var. aurea 159 



p. var. canescens 159 



p. var. mierophvlla 159 



puta 189, 192 



putata 244, 244 



pvramidata 189, 196 



radina 189, 203 



recedens 158, 161 



recordabilis 189, 199 



relicta 165, 177 



repentina 222, 226 



rotundifolia 222 



r. var. bicknellii 222 



nifipes 209, 213 



ruricola 190, 206 



scabra 230, 242 



