Verbatim text: Frame, D. M. 1999. A conspectus of Mexican Melanthiaceae including a description of new taxa of Schoenocaulon and Zigadenus. Acta Bot. Mex. 48: 27–50.  
Author: Frame, D.M.
Year: 1999
Title: A conspectus of Mexican Melanthiaceae including a description of new taxa of Schoenocaulon and Zigadenus
Journal: Acta Bot. Mex
Volume: 48
Pages: 27–50