Phylogenetic interrelationships of the orders
of flowering plants (AGP,
1998)
"Monocots and eudicots are not formally ranked and named
because it is not yet clear at which level they should be recognized.
The same problems occur with commelinoids (a phylogenetically derived subgroup
of monocots) and with rosids and asterids (subgroups of eudicots), although
these are commonly known as subclasses Commelinidae, Rosidae, and Asteridae,
respectively."
from Figure 1. Phylogenetic interrelationships of the orders
of flowering plants, compiled from recent cladistic analyses cited in the
text. Jackknife support is given on the branches (a dash for values <50%),
first jackknife values from analysis of 545 sequences of the rbcL,
atpB, and 18S rDNA genes (D. E. Soltis, M. W. Chase, P. S. Soltis,
D. Albach, M. E. Mort, V. Savolainen, M. Zanis, and J. S. Farris, unpublished,
in preparation) and second jackknife values from analysis of 2538 rbcL
sequences (Källersjö et al., 1998).
Return FPG
summary of the APG system or FPG lead
page for the APG classsification