Verbatim text: Duvall, M. R., G. H. Learn Jr., L. E. Eguiarte, and M. T. Clegg. 1993. Phylogenetic analysis of rbcL sequences identifies Acorus calamus as the primal extant monocotyledon. Proc. Natl. Acad. Sci. U.S.A. 90: 4641--4644.
Author: Duvall, M.R., Learn, G.H., Eguiarte, L.E., Clegg, M.T.
Year: 1993
Title: Phylogenetic analysis of rbcL sequences identifies Acorus calamus as the primal extant monocotyledon
Journal: Proc. Natl. Acad. Sci. U.S.A
Volume: 90
Pages: 4641–4644