|It has been suggested that the seeds (sometimes
called Texas buckeyes) of this small tree were once
used for psychoactive purposes in northern
Mexico and Texas (Schultes and Hofmann 1992,
59*). The black seeds, which are 1.5 cm in length,
have been found in archaeological contexts
together with peyote (Lophophora williamsii) and
mescal beans (Sophora secundiflora) (Adovasio
and Fry 1976*). Ungnadia seeds containcyanogenetic compounds (Seigler et al. 1971).
Seigler, D., F. Seaman, and T. ]. Mabry. 1971. New
cyanogenetic lipids from Ungnadia speciosa.Phytochemistry 10:485-87.