You can help expand this article with text translated from the corresponding article in Spanish. (December 2009) Click [show] for important translation instructions.
Content in this edit is translated from the existing Spanish Wikipedia article at [[:es:Hamamelididae]]; see its history for attribution.{{Translated|es|Hamamelididae}} to the talk page. |
Hamamelididae is an obsolete botanical name at the rank of subclass. Because some hamamelidid members bear aments (i.e., catkins), this subclass has been formerly known as Amentiferae. Based on molecular phylogeny works, Hamamelididae appears to be a polyphyletic group.[1][2]
A well-known system that used the name Hamamelididae is the Cronquist system, although in the disallowed spelling Hamamelidae. In the original 1981 version of this system the circumscription was:
As is true for any botanical name, circumscription of the subclass will vary with the taxonomic system being used; the only requirement being that it includes the family Hamamelidaceae. The APG II system does not recognize named taxa above the rank of order but places most of the taxa involved in the rosids clade, with Hamamelidaceae itself in order Saxifragales.
 | This angiosperm-related article is a stub. You can help Wikipedia by expanding it. |