<jats:p> A new alkaloid C<jats:sub>20</jats:sub>H<jats:sub>24</jats:sub>N<jats:sub>2</jats:sub>O (taberpsychine) obtained from Venezuelan T. psychotrifolia is shown to have structure 5. The Hofmann degradation products of taberpsychine and its dihydro derivative are discussed. Two other bases isolated are affinine and 16-epi-vobasinic acid, the latter for the first time as a natural product.