Six little-known Crassulaceae from central Peru are discussed. (1) Echeveria excelsa, the largest species of this genus in Peru, is found for the first time at its type locality since Weberbauer's visit in 1906, and a new type is designated for it; (2) Sedum andinum is perhaps the smallest Sedum species in Peru; it has almost spherical leaves, and its red-and-white flowers are difficult to observe. (3) Sedum incarum (BALL) PINO is a new combination for Villadia incarum; its inflorescence is an obscure and variable cyme, which earlier may have been misinterpreted as a raceme. (4) Sedum decipiens has been re-collected for the first time since its discovery. It is rare in habitat and has a distinctive inflorescence forming a diffuse monochasium. (5) Sedum renzopalmae PINO is presented as a new species with yellow flowers. (6) Villadia virgata remains as the only valid species of Villadia in Peru, though there is evidence that other species may exist.