The epigeal part of Convolvulus krauseanus collected in two vegetation periods - flowering and fruit-bearing - has been studied for the first time. Five bases have been isolated. Convolvine, convolamine, and convolidine proved to be known, phyllalbine was isolated from this species for the first time, and colvolicine proved to be a new base for which the structure of (±)-N-acetoxy-3α-veratroyl-nortropine has been established. © 1980 Plenum Publishing Corporation.