Literature references

1 literature reference for Piper aggregatum P.J. Bergius:

Author: Bergio P J
Year: 1772
Title: Ternio graminum ex America novorum descripta & inconibus illustrata
Source: in Acta Helvetica, Physico-Mathematico-Anatomico-Botanico-Medica figuris aeneis illustrata, et in Usus Publicos exarata, Typis & Sumptibus Joh. Rodolphi Im-Hof et Filii, Volumen 7: 131-132, table X