Are Frailea and Cyathodes both types of plant?
Cyathodes Cyathodes is a genus of shrubs within the heath family. A characteristic feature of the genus is a deeply five-cleft calyx.
Cyatheales The order Cyatheales, which includes the tree ferns, is a taxonomic division of the fern class, Polypodiopsida. No clear morphological features characterize all of the Cyatheales, but DNA sequence data indicate the order is monophyletic. Some species in the Cyatheales have tree-like growth forms, but others have rhizomes.