Cycadeæ, remarks on, with descriptions of the ovula and seeds of Cycas revoluta, by A. J. Downing, xxxii, 45.f
Cylactis, i, 377.
Cynanchum scoparium, v, 291.
Cyrilla paniculata, v, 290.
Dalea violacea, iv, 66.
Datura, two species in the United States, vi, 254.
Delphinium tricome, xiv, 114.
Dentaria dissecta, vii, 62.
Diervilla sessilifolia, xlv, 174.
Dionæa muscipula, xxvi, 315.