The new monoterpenoid coumarins, pituranthoside [(-)-S-trans-marmin-7'
-O-beta-D-glucopyranoside] and(-)-S-trans-marmin, as well as four know
n coumarins, xanthotoxol, umbelliferone, isopimpinellin and bergapten,
were isolated from the shoots of Pituranthos triradiatus and spectros
copically characterized.