in botany, a genus of plants belonging to the syngenesia polygamia æqualis clas. The receptacle is naked; the pappus is simple; the calyx is imbricated and hemispherical; and the stylus is hardly longer than the floresules. There are nine species, none of which are natives of Britain.

CRYSOGONUM, or Moth-mullein, in botany, a genus of plants belonging to the syngenesia polygamia necessaria clas. The receptacle is paleaceous; the pappus is monophyllous, and three-teethed; the calyx consists of five leaves; and the seeds are calcuated, and involved in four leaves. There is but one species, a native of Virginia.