Orchid, Floral ontogeny, Congenital fusion, Synorganization, Orchidaceae, Labellum, Partial homology, Gynostemium, B-class genes, KNOX-gene expression, and Herminium

Dioecy, Inflorescence architecture, Preformation, Floral reduction, Inflorescence evolution, Heterochrony, Genome-enabled model system, and Synorganization