A new alkaloid, regecoline, with mp 312-314°C, has been isolated from the fraction of phenolic-basic alkaloids of Colchicum kesselringii Rgl. growing in the Syrdar'-inskaya region. The structure of this alkaloid has been established on the basis of the results of a study of chemical transformations, spectral characteristics, and mutual transitions with kesselringine. © 1985 Plenum Publishing Corporation.