S.M. Bukasov. Potatoes of South America and their breeding use, Leningrad, 1933, p. 81

Diagnosis: A form close to v. chilotanum - f. chaped, varying in narrower and more deflexed calyx acumens, some- in a purpler corolla color and sometimes some other flower details (degenerated anthers).
Thickness of style filaments is like by the type, but with short papillae, 18-27 micr. (because of degeneration of anthers).
Juzepczuk № 1944 under the name Chaped from Ancud. № 1966 from Yutuy under title Chupera colorada et. al.