0370-3908 0370-3908 S0370-39082018000300132 10.18257/raccefyn.642 Venezuela U.S.A. 00 09 2018 00 09 2018 42 164 132 136

Angiosperm Phylogeny Group 2016 181 1-20 1775 2 678-82 2004 8 316-47 2016 2 2207-14 2018 1-455 1993 a 186 17-32 1993 b 186 33-55 2000 65 2-130 2007 9 345-63 2007 61 1675-94 International Union for the Conservation of Nature 2016 2010 55 86-7 2017 42 54-62 2001 50 763-79 2009 2005 20 127-34 2014 19 8885-9 2015 202 259-65 1977 58 109-45 2017 358 1614-7 2000 3 6-12 2000 58 51-4