Reference:Ackerman1977a
Verbatim text: Ackerman, J. D. 1977. Biosystematics of the genus Piperia Rydb. (Orchidaceae). Bot. J. Linn. Soc. 75: 245–270.
Author: Ackerman, J.D.
Year: 1977
Title: Biosystematics of the genus Piperia Rydb. (Orchidaceae)
Journal: Bot. J. Linn. Soc
Volume: 75
Pages: 245–270