Verbatim text: Bateman, R. M., A. M. Pridgeon, and M. W. Chase. 1997. Phylogenetics of subtribe Orchidinae (Orchidoideae, Orchidaceae) based on nuclear ITS sequences: 2. Infrageneric relationships and taxonomic revision to achieve monophyly of Orchis sensu stricto. Lindleyana 12: 113–141.  
Author: Bateman, R.M., Pridgeon, A.M., Chase, M.W.
Year: 1997
Title: Phylogenetics of subtribe Orchidinae (Orchidoideae, Orchidaceae) based on nuclear ITS sequences: 2. Infrageneric relationships and taxonomic revision to achieve monophyly of Orchis sensu stricto
Journal: Lindleyana
Volume: 12
Pages: 113–141