Gerardo A. Salazar, Mark W. Chase, Miguel A. Soto Arenas, Martin Ingrouille: Phylogenetics of Cranichideae with emphasis on Spiranthinae (Orchidaceae, Orchidoideae), evidence from plastid and nuclear DNA sequences. In: American Journal of Botany. Band90, 2003, ISSN0002-9122, S.777–795 (englisch, amjbot.org).
Gerardo A. Salazar, Mark W. Chase, Miguel A. Soto Arenas, Martin Ingrouille: Phylogenetics of Cranichideae with emphasis on Spiranthinae (Orchidaceae, Orchidoideae), evidence from plastid and nuclear DNA sequences. In: American Journal of Botany. Band90, 2003, ISSN0002-9122, S.777–795 (englisch, amjbot.org).