A Floristic and Chromosomal Study of the Fumariaceae in Virginia

This is a study of the seven species of the Fumariaceae known to occur in Virginia. The following are emphasized: keys to genera and species, morphological descriptions, distribution maps, and chromosome numbers. The following chromosome numbers are reported: Dicentra canadensis (Goldie) Walpers (2n = 64): Dicentra cucullaria (L.) Bernh. (2n = 32); Dicentra exima (Ker) Torrey (2n = 16); Fumaria officinalis L. (2n = 32); Corydalis sempervirens (L.) Persoon (2n = 32). Reported for the first time: Corydalis flavula (Raf.) DC. (2n = 16).