#NEXUS
[File created by TreeBASE:  9/26/98  17:07:24]
[Matrix accession#: M148c2x5x96c17c51c27]
BEGIN DATA;
DIMENSIONS  NTAX=20 NCHAR=31;

[!This data set was downloaded from TreeBASE, a prototype relational database of phylogenetic knowledge. TreeBASE has been supported by the NSF, Harvard University, and UC Davis. Please do not remove this acknowledgment from the Nexus file. 
TreeBASE © 1994-1998.

Study reference: 
Crane, P. R. 1985. Phylogenetic relationships in seed plants. Cladistics 1:329-348.

Study accession number = S2x5x96c17c49c16
Matrix accession number = M148c2x5x96c17c51c27
]
FORMAT  MISSING=? GAP=N  SYMBOLS= " - +";
MATRIX

'Archaeopteris'       +--N-N-NN---N--NNN-+N-NNN-----N
'Medullosans'         -++++++--+--N--N----N-NNN-----N
'Cycads'              ++++++---+--N+-N----N-NNN-----N
'Lyginopteris'        ++++--+--+--N--N---+N-N-N-----N
'Cordaixylon'         +++++-+++--+++++----N-NNN-----N
'Mesoxylon'           +++++-+++--++-++----N-NNN-----N
'Lebachia'            +++++-+++-+++-------N-NNN-----N
'Extant_Conifers'     +++++-+++-++++--+---N-NNN-----N
'Ginkgo'              +++++-+-+--+N+-N----N-NNN-----N
'Callistophyton'      +++++-++++--N+-N+---N-NNN-----N
'Peltasperms'         +++++-+-++--N+-N----N---N-----N
'Glossopterids'       +++++-++++--N+-N-+------N-----N
'Caytonia'            +++++-++++--N+-N-++-----N-----N
'Corystosperms'       +++++-++++--N+-N-++++---N-----N
'Bennettitales'       +++++-+-++--N+-N-++++++++------
'Pentoxylon'          +++++-+-++--N+-N-++++++++------
'Gnetum'              ++++N-+--+--N+--+-++N-NNN+++-++
'Welwitschia'         ++++N-+-----N+--+-++N+NNN++++++
'Ephedra'             +++++-+-+---N+--+-++N+NNN---+++
'angiosperms'         +++++-+--+--N+-N++++++--N+-----
;
END;

BEGIN TREEBASE;
END;

BEGIN TREES;

[! 1 trees. TreeBASE accession#: T360:2/5/96:17:52:17 ]
	TRANSLATE
		1	'Extant_Conifers',
		2	'Callistophyton',
		3	'Corystosperms',
		4	'Glossopterids',
		5	'Archaeopteris',
		6	'Bennettitales',
		7	'Lyginopteris',
		8	'Peltasperms',
		9	'Cordaixylon',
		10	'Medullosans',
		11	'anthophytes',
		12	'seed_plants',
		13	'Welwitschia',
		14	'angiosperms',
		15	'Pentoxylon',
		16	'Mesoxylon',
		17	'Gnetales',
		18	'Caytonia',
		19	'Lebachia',
		20	'Ephedra',
		21	'Ginkgo',
		22	'Cycads',
		23	'Gnetum',
	;
	TREE 'Fig._2' =  [&R] (5,(7,(10,22,((((9,16),(19,1)),21),2,8,(4,(18,(3,((6,15),(((23,13),20),14)))))))));


END;