The hexane extract of leaves of Erythroxylum passerinum yielded besides sitosterol, β-amyrin, lupeol and erythrodiol, β-amyrin palmitate, 3β,28-dihydroxy-olean-12-enyl palmitate, ...

Growth rings have been reported for several tropical species under seasonal precipitation regimes and have often been related to leaf phenology. We investigated growth ring distinctiveness, wood ...

Ayahuasca (locally called yagé) was the most frequently reported preparation, and Nicotiana tabacum, Erythroxylum coca, and Aloysia citrodora were the most commonly cited species. Leaves (38%), stems ...

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