Frailea altasensis Prestlé species accepted

Frailea alexandri Metzing species accepted

Frailea erythracantha R. Pontes, A. S. Oliveira & Deble species accepted

Frailea gracillima (Lem.) Britton & Rose species accepted

Frailea curvispina Buining & Brederoo species accepted

Frailea chiquitana Cárdenas species accepted

Frailea castanea Backeb. species accepted

Frailea buenekeri W. R. Abraham species accepted

Frailea aureispina F. Ritter species accepted

Frailea schilinzkyana (F. Haage ex K. Schum.) Britton & Rose species accepted

Frailea pumila (Lem.) Britton & Rose species accepted

Frailea cataphracta (Dams) Britton & Rose species accepted

Frailea pygmaea (Speg.) Britton & Rose species accepted

Frailea piltzii C. A. L. Bercht & Schädlich species accepted

Frailea mammifera Buining & Brederoo species accepted

Frailea diersiana Schädlich species accepted

Frailea phaeodisca (Speg.) Backeb. & F. M. Knuth species accepted

Frailea stockingeri Prestlé species accepted