#NEXUS

[!This data set was downloaded from TreeBASE, a relational database of phylogenetic knowledge. TreeBASE has been supported by the NSF, Harvard University, Yale University, SDSC and UC Davis. Please do not remove this acknowledgment from the Nexus file.


Generated on September 19, 2025; 12:16 GMT

TreeBASE (cc) 1994-2008

Study reference:
Forest F., Savolainen V., Chase M., Lupia R., Bruneau A., & Crane P. 2004. Multiple
calibration points, paleobotanical confidence intervals and the estimation of
divergence times: A case study from the birch family (Betulaceae). Systematic Botany,
null.

TreeBASE Study URI:  http://purl.org/phylo/treebase/phylows/study/TB2:S1208]

BEGIN TAXA;
        TITLE  Combined_Betulaceae;
        DIMENSIONS NTAX=27;
        TAXLABELS
            Alnus_acuminata
            Alnus_cremastogyne
            Alnus_incana_rugosa
            Alnus_maritima
            Alnus_nitida
            Alnus_viridis_crispa
            Betula_alnoides
            Betula_humilis
            Betula_insignis
            Betula_nigra
            Betula_pendula
            Betula_populifolia
            Betula_pumila
            Carpinus_betulus
            Carpinus_caroliniana_virginiana
            Carpinus_cordata
            Carpinus_fangiana
            Carpinus_japonica
            Corylus_americana
            Corylus_colurna
            Corylus_cornuta_cornuta
            Corylus_ferox
            Corylus_maxima
            Ostry_japonica
            Ostrya_virginiana
            Ostryopsis_davidiana
            Ticodendron_incognitum
            ;
END;

BEGIN TREES;
      TITLE Tb6957;
      LINK TAXA = Combined_Betulaceae;
      TREE Fig._1 = [&R] (((((((Corylus_maxima,Corylus_americana),Corylus_colurna),Corylus_cornuta_cornuta),Corylus_ferox),(Ostryopsis_davidiana,(((Carpinus_fangiana,Carpinus_cordata),((Carpinus_caroliniana_virginiana,Carpinus_betulus),Carpinus_japonica)),(Ostry_japonica,Ostrya_virginiana)))),(((((Alnus_nitida,Alnus_cremastogyne),(Alnus_incana_rugosa,Alnus_acuminata)),Alnus_viridis_crispa),Alnus_maritima),(((Betula_alnoides,Betula_pumila,Betula_humilis,(Betula_populifolia,Betula_pendula)),Betula_nigra),Betula_insignis))),Ticodendron_incognitum);
[!  TreeBASE tree URI: http://purl.org/phylo/treebase/phylows/tree/TB2:Tr1851]


END;