Não informado. Contribution from the Laboratories of Cryptogamic Botany and the Farlow Herbarium of Harvard University. Farlow Herbarium of Harvard University, Laboratories of Cryptogamic Botany.
Chicago-referens (17:e uppl.)Não informado. Contribution from the Laboratories of Cryptogamic Botany and the Farlow Herbarium of Harvard University. Cambridge, Mass: Farlow Herbarium of Harvard University, Laboratories of Cryptogamic Botany.
MLA-referens (8:e uppl.)Não informado. Contribution from the Laboratories of Cryptogamic Botany and the Farlow Herbarium of Harvard University. Farlow Herbarium of Harvard University, Laboratories of Cryptogamic Botany.
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