Arecidae

Arecidae is a botanical name at the rank of subclass. Circumscription of the subclass will vary with the taxonomic system being used (there are many such systems); the only requirement being that it includes the family Arecaceae.

Arecidae in the Takhtajan system
The Takhtajan system used this name for a subclass in the class Liliopsida (=monocotyledons).


 * subclass Arecidae
 * superorder Arecanae
 * order Arecales
 * family Arecaceae (or Palmae)
 * order Cyclanthales
 * family Cyclanthaceae
 * order Arales
 * family Araceae
 * family Lemnaceae
 * order Pandanales
 * family Pandanaceae
 * order Typhales
 * family Sparganiaceae
 * family Typhaceae

Arecidae in the Cronquist system
The Cronquist system (1981) used this name for a subclass in the class Liliopsida (=monocotyledons), with the circumscription:


 * subclass Arecidae
 * order Arecales
 * family Arecaceae (or Palmae)
 * order Cyclanthales
 * family Cyclanthaceae
 * order Pandanales
 * family Pandanaceae
 * order Arales
 * family Acoraceae
 * family Araceae
 * family Lemnaceae

APG II system
The APG II system does not use formal botanical names above the rank of order; it assigns the plants included in this subclass by Cronquist in various taxa throughout the clade monocots. In other words, by today's standards Cronquist's subclass was not a "good" group.