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  1. By: Plowman, Timothy, - Maas, Paul J. M.,
    Publication info: 1974
    Holding Institution: Field Museum of Natural History Library
    BHL Collections: BHL Field Notes Project
  1. By: Maas, Paul J. M., - Maas-van de Kamer, Hiltje - Junikka, Leo - Mello-Silva, Renato de - Rainer, Heimo
    Type: Article
    In: Rodriguésia: Revista do Jardim Botânico do Rio de Janeiro
    Volume: 52
    Date: 2001
    Page Range: 61--94
    Publication Info: Rio de Janeiro, Instituto de Pesquisas Jardim Botânico do Rio de Janeiro, 1935
  2. By: Maas-van de Kamer, Hiltje - Maas, Paul J. M., - Specht, Chelsea
    Type: Article
    In: PhytoKeys
    Volume: 18
    Date: 2012
    Page Range: 11-18
    Publication Info: Sofia, Bulgaria Pensoft Publishers [2010]-
  3. By: Maas, Paul J. M., - Maas-van de Kamer, Hiltje - André, Thiago - Skinner, David - Valderrama, Eugenio - Specht, Chelsea D.
    Type: Article
    In: PhytoKeys
    Volume: 222
    Date: 2023-3-22
    Page Range: 75--127
    Publication Info: Sofia, Bulgaria Pensoft Publishers [2010]-
  4. By: Lammers, Thomas G - Maas, Paul J. M.,
    Type: Article
    In: SIDA, contributions to botany
    Volume: 18
    Date: 1998
    Page Range: 363--364
    Publication Info: [Dallas W. F. Mahler, etc.] 1962-
  5. By: Maas, Paul J. M., - Maas, Hiltje - Miralha, J M S - Junikka, Leo
    Type: Article
    In: Rodriguésia: Revista do Jardim Botânico do Rio de Janeiro
    Volume: 58
    Date: 2007
    Page Range: 617--662
    Publication Info: Rio de Janeiro, Instituto de Pesquisas Jardim Botânico do Rio de Janeiro, 1935
  6. By: Pontes, Aline Fernandes - Barbosa, Maria Regina de V. (Maria Regina de Vasconcellos), - Maas, Paul J. M.,
    Type: Article
    In: Acta Botanica Brasilica
    Date: 2004-06-01
  7. By: Maas, Paul J. M., - Maas-van de Kamer, Hiltje
    Type: Article
    In: Moscosoa : contribuciones científicas del Jardín Botánico Nacional "Dr. Rafael M. Moscoso"
    Volume: 6
    Date: 1990
    Page Range: 134--139
    Publication Info: Santo Domingo, El Jardín, 1976-
  8. By: Maas, Paul J. M.,
    Type: Article
    In: Annals of the Missouri Botanical Garden
    Volume: 68
    Date: 1981
    Page Range: 685--686
    Publication Info: St. Louis, Missouri Botanical Garden Press, 1914-
  9. By: Erkens, Roy - Oosterhof, Jessica - Westra, Lubbert Y.Th. - Maas, Paul J. M.,
    Type: Article
    In: PhytoKeys
    Volume: 86
    Date: 2017
    Page Range: 75-96
    Publication Info: Sofia, Bulgaria Pensoft Publishers [2010]-
  10. By: Maas, Paul J. M., - Westra, L Y Th - Meijdam, N A J - Van Tol, I A V
    Type: Article
    In: Boletim do Museu Paraense Emílio Goeldi
    Volume: 9
    Issue: 1
    Date: 1993
    Page Range: 31--58
    Publication Info: Belém O Museu 193
  11. By: He, Ping - Maas, Paul J. M.,
    Type: Article
    In: Boletim do Museu Paraense Emílio Goeldi
    Volume: 9
    Issue: 2
    Date: 1993
    Page Range: 143--193
    Publication Info: Belém O Museu 193
  12. By: Chatrou, Lars W. - Koek-Noorman, Jifke - Maas, Paul J. M.,
    Type: Article
    In: Annals of the Missouri Botanical Garden
    Volume: 87
    Date: 2000
    Page Range: 234--245
    Publication Info: St. Louis, Missouri Botanical Garden Press, 1914-
  13. By: Pirie, Michael - Chatrou, Lars W. - Maas, Paul J. M.,
    Type: Article
    In: PhytoKeys
    Volume: 112
    Date: 2018
    Page Range: 1--141
    Publication Info: Sofia, Bulgaria Pensoft Publishers [2010]-
  14. By: Westra, Lubbert Y.Th. - Maas, Paul J. M.,
    Type: Article
    In: NeoBiota : advancing research on alien species and biological invasions
    Volume: 12
    Date: 2012
    Page Range: 1-21
    Publication Info: Sophia, Bulgaria Pensoft Publishers
  15. By: Maas, Paul J. M., - Westra, Lubbert Y.Th. - Chatrou, Lars W. - Verspagen, Nadja - Rainer, Heimo - Zamora Villalobos, Nelson - Erkens, Roy
    Type: Article
    In: PhytoKeys
    Volume: 126
    Date: 2019
    Page Range: 25-69
    Publication Info: Sofia, Bulgaria Pensoft Publishers [2010]-