The alkaloid content of two species of Dutaillyea (Rutaceae) was investigated.Four alkaloids were isolated from the leaves of Dutaillyea oreophila: kokusaginineFour attactors were isolated from the teaces of Dutative oreposite. Rokusaginine(1), N,N-dimethyl 5-methoxy tryptamin (2), 2-methyl 6-methoxy 1,2,3,4-tetrahydro- β carboline (3) and hordenine (4), whereas dictamnine whose structure has been established on the basis of its spectral data (mainly 1H nmr) compared with those of its isomeric 4-quinolone, isodutadrupine (11).