These make up a basal group of asterids[?]. Under the older Cronquist system, the Ericales included a smaller group of plants, which were placed among the Dileniidae[?]:
... Cogan type[?] Apraxia Apudoma[?] Aqueductal stenosis, X linked[?] Arachindonic acid, absence of[?] Arachnodactyly ataxia cataract aminoaciduria mental ...