Thirteen bases were characterized from the stem bark of Erythroxylum hypericifolium; hygrine is the principal component. As in the root bark esters of phenylacetic acid predominate; other alkaloids involve acetic, benzoic and trimethoxycinnamic acids. Alkaloids reported for the first time are 3α-phenylacetoxynortropan-6β-ol, 6β-acetoxy-3α-benzoyloxytropane and 3-acetoxy-6-phenylacetoxytropane. © 1989.