225 



Cymodocea acaulis, 124; aequorea, 

 124 ; angustata, 124 ; asiatica, 

 124; australis, 124; griffithii, 

 124; isoetifolia, 124; manatorum, 

 123 ; nodosa, 124 ; preauxiana, 

 124 ; rotundata, 124 ; serrulata, 

 124; webbiana, 124 



Cynanchum nigrum, 214, 217 



Cynthia virginica, 179 



Cyperus dentatus, 67 ; diandrus, 67 ; 

 esculentus, ^1 \ filiculmis, 67; 

 grayi, 67, 129; nutallii, 67; 

 schweinitzii, 82 ; strigosus, 67 



Cypripedium acaule, 132, 214; parvi- 

 florum, 132 



Cystoclonium purpureum, 192 



Cystopteris bulbifera, 132, 216 



Dalibarda" repens, 216 



Dasya pedicellata, 194 



Datura tatula, 16 



Daucus carota, 75 



Davidofif, Arthur, 93 



Davis, Ray J., 60 



Decodon verticillatus, 74, 103 



Demaree, Delzie, 99 



Demarestia aculeata, 190; viridis, 190 



Dermatocarpon miniatum, 133 



Descole, Horacio R., 27 



Desmodium, 30 ; canescens, 25 



Dianthus armaria, 70 ; barbatus, 167 ; 



deltoides, 167, 216 

 Dicksonia punctilobula, 31, 65 

 Dictyosiphon foeniculaceus, 191 

 Digitaria sanguinalis, 44, 64 

 Dillman, George F., 63, 136 

 Dioscorea paniculata, 25, 180 

 Diospyros virginiana, S3 

 Distichlis spicata, 66, 129 

 Dix, W. L., Cladonia alpestris near 



Lake Shehawken, 45 ; Field trip 



of Aug. 3, 4, 215; Pronouncing 



Lichen Names, 39 

 Dobzhansky, Th., 139 

 Dodge, B. O., 57, 104; Remarks 



made at the annual meeting of 



the Torrey Club, 88 



Dole, W. H., Field trip of July 20, 



214 

 Doney, Charles F., 98 

 Dorf, Eriing, 104; Field trip of 



Feb. 11, 90 

 Douglas, Mrs. Gertrude Elizabeth, 



97 

 Drexler, Robert V., 140 

 Drosera longifolia, 71 

 Drushel, J. Andrew, 140 

 Dryopteris bootii, 216; clintoniana, 



216; cristata, 216; goldiana, 215; 



spinulosa, 216 

 Dulichium arundinaceum, 68 

 Dumontia incrassata, 192 

 Duncan, Robert E., 96 

 Durant, Mrs. Donald, 96 



Echinochloa crusgalli, 66 ; muri- 



cata, 66 ; walteri, 66 

 Echinocystis lobata, 25, 169 

 Echium vulgare, 16 

 Ectocarpus granulosus, 189 ; siliculo- 



sus, 189 

 Edelson, Miss Louise M., 62 

 Elachistea fucicola, 190 

 Eleocharis acicularis, 216 ; obtusa, 



68, 216; palustris, 215 

 Elodea canadensis, 25 

 Elymus virginicus, 66 

 Emerson, Ralph, 138 

 Enalus acoroides, 123 

 Enteromorpha clathrata, 188 ; erecta, 



188; intestinalis, 188; linza, 188; 



micrococca, 188 ; plumosa, 188 

 Epifagus virginiana, 11 

 Epigaea repens, 51, 132 

 Epilobium angustifolium, 74 ; colora- 

 tura, 74 ; hirsutum, 83 ; lineare, 



216 

 Equisetum arvense, 66 ; fluviatile, 215 ; 



hyemale, 55 ; sylvaticum, 216 

 Eragrostis caroliniana, 66 ; megasta- 



chya, 66 ; spectabilis, 130 

 Erechtites hieracifolia, 79 

 Ericson, Charles, 27 



