The eumagnoliids are an informal group composed of the Canellales, Laurales, Magnoliales, Piperales
and Chloranthales (sensu Soltis et al.
Laurales, Magnoliales y Piperales
, mas las monocotiledoneas y las llamadas eudicotiledoneas (esto es.
These groups are probably not the direct ancestors of monocots, which seem rooted more closely to the vessel-beating groups Chloranthales and Piperales
(Carlquist, 1992a, b, 2009) where structural resemblances are concerned.
1/2 134 Aristolochiaceae, Piperales
monocots and Piperales
(Verhuellia), have endemic genera (25) in the
Peppers and pipevines: phylogenetic relationships within Piperales
225] PINALES Pinaceae Larix sibirica  Picea abies  Pinus sylvestris  PIPERALES
Hydnoraceae Hydnora afrieana Thunb.
This is not surprising, given the characters that "supported" the original group: "The other line, here called the 'paleoherbs,' is characterized by anomocytic stomata, two perianth cycles, and trimery in both the perianth and the androecium (except for loss of one or both perianth cycles in Lactoris and Piperales
and secondary multiplication of parts in Nympheaceae)" (Donoghue & Doyle, 1989a: 28).
P-type plastids of different forms prevail in the other eumagnoliid orders; namely, Laurales, Magnoliales, and Piperales
(see Behnke, 1988).