#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 November 15, 2026; 19:03 GMT

TreeBASE (cc) 1994-2008

Study reference:
Frasier C., Albert V., & Struwe L. 2006. Amazonian lowland, white sand areas as ancestral
regiosn for South American biodiversity: biogeographic and phylogenetic
patterns in Potalia (Angiospermae: Gentianaceae). Organisms Diversity & Evolution,
null.

TreeBASE Study URI:  http://purl.org/phylo/treebase/phylows/study/TB2:S1682]

[ The following blocks are input data for analysis step 3318 ]
BEGIN TAXA;
        TITLE  TaxaForAnalysisStep3318;
        DIMENSIONS NTAX=15;
        TAXLABELS
            Anthocleista_amplexicaulis
            Anthocleista_grandiflora
            Anthocleista_scandens
            Anthocleista_schweinfurthii
            Anthocleista_vogelii
            Fagraea_berteroana
            Potalia_amara
            Potalia_chocoensis
            Potalia_coronata
            Potalia_crassa
            Potalia_elegans
            Potalia_maguireorum
            Potalia_resinifera
            Potalia_turbinata
            Potalia_yanamonoensis
            ;
END;

BEGIN CHARACTERS;
[! TreeBASE Matrix URI: http://purl.org/phylo/treebase/phylows/matrix/TB2:M874]

	TITLE Morphology;
	LINK TAXA = TaxaForAnalysisStep3318;
	DIMENSIONS NCHAR=19;
	FORMAT DATATYPE=Standard SYMBOLS= "0 1 2 3" MISSING=? GAP= -;
	CHARSTATELABELS
		1  Plant_branching_type / 'monopodial, unbranched' 'sympodial, candelabra-shaped',
		2  Interpetiolar_structures / axillary_scales_present_at_the_leaf_bases ocreas_present_around_the_stems_at_the_leaf_bases,
		3  Leaf_shape / 'elliptic, widest in the middle' 'obovate-oblanceolate, widest above the middle',
		4  Secondary_veins_on_leaves / straight curved,
		5  Auricles_at_leaf_bases / absent present,
		6  Inflorescence_size / less_than_20_cm_long over_20_cm_long,
		7  'Color of inflorescence branches, pedicels, and peduncles' / green yellow_to_orange,
		8  Orientation_of_sepals_in_fruit / appressed spreading,
		9  Flower_size / over_20_mm_long up_to_20_mm_long,
		10  Corolla_color / violet 'white, yellow, orange' 'green, often with yellow tube and lobe margins' 'dark green, not with yellow tube and margins',
		11  Corolla_lobe_orientation_at_anthesis / spreading erect erect_and_incurved,
		12  Anthers_with_sterile_apical_appendages / absent present,
		13  Infructescence_persistence / breaking_at_nodes not_breaking_apart_at_nodes,
		14  Fruit_size / over_20_mm_long up_to_20_mm_long,
		15  Fruit_apex_shape / pointed_to_apiculate truncate_to_rounded,
		16  Placenta_shape / 'placenta prominent, bilobed and inrolled' 'placenta small and simple, not inrolled',
		17  Pericarp / evenly_thick thicker_at_apex,
		18  Sterile_apical_part_on_fruit / absent present,
		19  Thickened_horizontal_ring_on_fruit / absent present,
		;

MATRIX
[                                       10        20        30    ]
[                                        .         .         .    ]
Anthocleista_amplexicaulis      1011110010{01}1?010000
Anthocleista_grandiflora        101111?101000010000
Anthocleista_scandens           000100000100?01??00
Anthocleista_schweinfurthii     101111010100001?000
Anthocleista_vogelii            1011110001000010000
Fagraea_berteroana              0000010101000000000
Potalia_amara                   0111001{01}1111110111{01}
Potalia_chocoensis              011100?0????1101111
Potalia_coronata                0110011012111101111
Potalia_crassa                  011100?0????1111110
Potalia_elegans                 011001{01}012111101000
Potalia_maguireorum             0100001013111101010
Potalia_resinifera              0111001{01}1{12}{01}111{01}111{01}
Potalia_turbinata               01110011111111{01}1111
Potalia_yanamonoensis           01110010121?1111111
;
END;

[ The following blocks are output data for analysis step 3318 ]
BEGIN TREES;
      TITLE Tb8091;
      LINK TAXA = TaxaForAnalysisStep3318;
      TREE Figs._2A_and_4 = [&R] (Fagraea_berteroana,((Anthocleista_scandens,(Anthocleista_amplexicaulis,Anthocleista_vogelii,(Anthocleista_grandiflora,Anthocleista_schweinfurthii))),(Potalia_elegans,Potalia_maguireorum,(Potalia_coronata,(Potalia_amara,Potalia_chocoensis,Potalia_crassa,Potalia_resinifera,Potalia_turbinata,Potalia_yanamonoensis)))));
[!  TreeBASE tree URI: http://purl.org/phylo/treebase/phylows/tree/TB2:Tr4693]


END;