Reference:Hammel1979a
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Verbatim text: Hammel, B.E. and J.R. Reeder. 1979. The genus Crypsis (Gramineae) in the United States. Syst. Bot. 4:267-280.
Author: Hammel, B.E., Reeder, J.R.
Year: 1979
Title: The genus Crypsis (Gramineae) in the United States
Journal: Syst. Bot
Volume: 4
Pages: 267–280