Vegetative anatomy of Calypsoeae (Orchidaceae)

by Carlsward, Barbara, Stern, William Louis
Published 2008

Nectary structure and nectar in Sobralia and Elleanthus (Sobralieae: Orchidaceae)

by Neubig, Kurt M., Carlsward, Barbara S., Whitten, W. Mark, Williams, Norris H.
Published 2015