Reference:Hellquist1986a
Verbatim text: Hellquist, C. B. and G. E. Crow. 1986. Potamogeton ´ haynesii (Potamogetonaceae), a new species from northeastern North America. Brittonia 38: 415--419.
Author: Hellquist, C.B., Crow, G.E.
Year: 1986
Title: Potamogeton ´haynesii (Potamogetonaceae), a new species from northeastern North America
Journal: Brittonia
Volume: 38
Pages: 415–419