Lamprocapnos Endl.
Lamprocapnos is a monospecific segregate genus formerly included in Dicentra. Its only species, Lamprocapnos spectabilis (old-fashioned bleeding-heart or Venus's car), is originally native in eastern Asia but widely cultivated as an ornamental in many temperate regions of the world.
Molecular studies demonstrated that Lamprocapnos represent a distinct lineage and thus should be segregated from Dicentra (Lidén & al. 1997). This classification is now widely accepted by most authors although the genus is omitted (doubtlessly in error) by Mabberley (2008). More recent molecular studies within Fumarieae (see Pérez-Gutiérrez & al. 2012) did not focus on Dicentra and related genera.
Literature:
Berg R.Y. (1969) Adaptation and evolution in Dicentra (Fumariaceae), with special reference to seed, fruit, and dispersal mechanism. Nytt Mag. Bot. 16: 49-75.
Cullen J. (1995b) Dicentra. In: Cullen J. & al. (eds.), The European Garden Flora, vol. 4. Cambridge University Press, Cambridge: 118-120.
Fahselt D. & Ownbey M. (1968) Chromatographic comparison of Dicentra species and hybrids. Amer. J. Bot. 55: 334-345.
Jäger E.J., Ebel F., Hanelt P. & Müller G. (eds.) (2008) Rothmaler Band 5. Exkursionsflora von Deutschland. Krautige Zier- und Nutzpflanzen. Springer Verlag, Berlin: 880 p.
Lidén M. (1986) Synopsis of Fumarioideae (Papaveraceae) with a monograph of the tribe Fumarieae. Opera Bot. 88: 1-133.
Lidén M., Fukuhara T., Rylander J. & Oxelman B. (1997) Phylogeny and classification of Fumariaceae, with emphasis on Dicentra s. l. based on the rps 16 intron. Pl. Syst. Evol. 206: 411-420.
Mabberley D.J. (2008) Mabberley’s plant-book (3th ed.). Cambridge University Press, Cambridge: XVIII + 1021 p.
Pérez-Gutiérrez M.A., Romero-García A.T., Salinas M.J., Blanca G., Fernández M.C. & Suárez-Santiago V.N. (2012) Phylogeny of the tribe Fumarieae (Papaveraceae s.l.) based on chloroplast and nuclear DNA sequences: Evolutionary and biogeographic implications. Amer. J. Bot. 99: 517-528.
Stace C. (2010) New flora of the British Isles, 3th ed.: XXXII + 1232 p. Cambridge University Press.
Stern K.R. (1961) Revision of Dicentra (Fumariaceae). Brittonia 13: 1-57.
Stern K.R. (1962) The use of pollen morphology in the taxonomy of Dicentra. Amer. J. Bot. 49: 362-368.
Stern K.R. (1983) Pacific bleeding hearts and their relatives. Fremontia 10(4): 14-18.
Stern K.R. & Ownbey M. (1971) Hybridization and cytotaxonomy of Dicentra. Amer. J. Bot. 58: 861-866.
Tebbitt M., Lidén M. & Zetterlund H. (2008) Bleeding hearts, Corydalis and their relatives. Timber Press.