#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; 15:46 GMT

TreeBASE (cc) 1994-2008

Study reference:
Rydin C., Kllersj M., & Friis E. 2002. Seed plant relationships and the systematic
position of Gnetales based on nuclear and chloroplast DNA: conflicting data, rooting
problems, and the monophyly of conifers. International Journal of Plant Sciences,
163(2): 197–214.

TreeBASE Study URI:  http://purl.org/phylo/treebase/phylows/study/TB2:S849]

BEGIN TAXA;
        TITLE  'rbcL, atpB 18S and 26S';
        DIMENSIONS NTAX=119;
        TAXLABELS
            Abies_grandis
            Acorus
            Adiantum
            Agave
            Amborella
            Angiopteris
            Anthoceros
            Araucaria_araucana
            Asplenium
            Austrobaileya
            Blechnum
            Botrychium
            Bowenia_serrulata
            Calocedrus
            Cedrus_libanii
            Cephalotaxus
            Ceratozamia_mexicana
            Chamaecyparis_pisifera
            Chloranthus
            Cinnamomum
            Cupressus
            Cycas_hybrid
            Cycas_revoluta
            Dicksonia
            Dioon_sp
            Drimys
            Encephalartos_villosus
            Ephedra_americana
            Ephedra_andina
            Ephedra_antisyphilitica
            Ephedra_californica
            Ephedra_distachya
            Ephedra_equisetina
            Ephedra_fragilis
            Ephedra_frustillata
            Ephedra_gerardiana
            Ephedra_intermedia
            Ephedra_major
            Ephedra_minuta
            Ephedra_monosperma
            Ephedra_saxatilis
            Ephedra_sinica
            Ephedra_spChile
            Ephedra_spKina
            Ephedra_torreyana
            Ephedra_tweediana
            Ephedra_viridis
            Equisetum
            Eucryphia
            Ginkgo
            Gnetum_africanum
            Gnetum_costatum
            Gnetum_gnemon
            Gnetum_indicum
            Gnetum_leyboldii
            Gnetum_montanum
            Gnetum_nodiflorum
            Gnetum_parvifolium
            Gnetum_urens
            Gunnera
            Hamamelis
            Huperzia
            Illicium
            Impatiens
            Juniperus
            Lactoris
            Larix_leptolepis
            Liquidambar
            Liriodendron
            Lysimachia
            Magnolia
            Marchantia
            Metasequoia
            Myriophyllum
            Nuphar
            Nymphaea
            Ophioglossum
            Osmunda
            Paeonia
            Phyllocladus
            Picea_asperata
            Picea_breweriana
            Picea_hybrid
            Pinus_cembra
            Pinus_hybrid
            Pinus_mugo
            Pinus_peuce
            Pinus_strobus
            Pinus_wallichiana
            Piper
            Platanus
            Plumbago
            Podocarpus
            Polemonium
            Polypodium
            Pseudotsuga_menziesii
            Psilotum
            Pteridium
            Ribes
            Sassafras
            Sciadopitys
            Sequoia_sempervirens
            Sequoiadendron_giganteum
            Taxodium_distichum
            Taxus_baccata
            Tetracarpaea
            Tetracentron
            Tetraphis
            Thuja_plicata
            Thujopsis_dolabrata
            Tmesipteris
            Tragopogon
            Trochodendron
            Tsuga_canadensis
            Vandenboschia
            Welwitschia
            Zamia_hybrid
            Zamia_pumila
            Zingiber
            ;
END;

BEGIN TREES;
      TITLE Tb6178;
      LINK TAXA = 'rbcL, atpB 18S and 26S';
      TREE Fig._1 = [&R] (Marchantia,Tetraphis,(Anthoceros,(Huperzia,((((Psilotum,Tmesipteris),(Ophioglossum,Botrychium)),(Equisetum,(Angiopteris,(Osmunda,(Vandenboschia,(Dicksonia,(Adiantum,(Pteridium,(Blechnum,(Polypodium,Asplenium)))))))))),(((Ephedra_tweediana,Ephedra_americana,Ephedra_gerardiana,Ephedra_monosperma,Ephedra_sinica,Ephedra_viridis,Ephedra_frustillata,Ephedra_spKina,Ephedra_intermedia,Ephedra_minuta,Ephedra_distachya,Ephedra_californica,Ephedra_fragilis,Ephedra_spChile,Ephedra_major,Ephedra_equisetina,Ephedra_andina,Ephedra_saxatilis,Ephedra_antisyphilitica,Ephedra_torreyana),(Welwitschia,(Gnetum_urens,Gnetum_nodiflorum,Gnetum_leyboldii,(Gnetum_costatum,Gnetum_gnemon),Gnetum_africanum,Gnetum_indicum,Gnetum_montanum,Gnetum_parvifolium))),((Amborella,((Nuphar,Nymphaea),((Illicium,Austrobaileya),(((((Cinnamomum,Sassafras),(Piper,Lactoris)),((Magnolia,Liriodendron),Drimys)),(Chloranthus,(Acorus,(Zingiber,Agave)))),(Platanus,((Trochodendron,Tetracentron),(Gunnera,(Eucryphia,(Plumbago,(Tragopogon,(Impatiens,Polemonium,Lysimachia))),((Hamamelis,Liquidambar),(Ribes,(Paeonia,(Tetracarpaea,Myriophyllum)))))))))))),(Ginkgo,(((Cycas_revoluta,Cycas_hybrid),((Zamia_hybrid,Zamia_pumila),(Bowenia_serrulata,Ceratozamia_mexicana,(Encephalartos_villosus,Dioon_sp)))),(((Araucaria_araucana,(Phyllocladus,Podocarpus)),(Sciadopitys,(Taxus_baccata,Cephalotaxus,((Taxodium_distichum,(Sequoiadendron_giganteum,(Sequoia_sempervirens,Metasequoia))),(Chamaecyparis_pisifera,(Thuja_plicata,Thujopsis_dolabrata),(Calocedrus,(Juniperus,Cupressus))))))),(Cedrus_libanii,((Abies_grandis,Tsuga_canadensis),((Pseudotsuga_menziesii,Larix_leptolepis),((Picea_breweriana,(Picea_asperata,Picea_hybrid)),((Pinus_mugo,Pinus_hybrid),((Pinus_cembra,Pinus_wallichiana),(Pinus_peuce,Pinus_strobus))))))))))))))));
[!  TreeBASE tree URI: http://purl.org/phylo/treebase/phylows/tree/TB2:Tr5676]


END;