Isoplexis canariensis is a source of compounds related to the Digitali
s cardenolides and anthraquinones. It is a protected endemic plant, bu
t even so, it is rapidly disappearing from nature. An optimal micropro
pagation procedure was achieved using nodal segments with two axillary
buds as explants. A concentration of 0.5 mu M kinetin in Murashige an
d Skoog liquid basal medium was found to be optimal for micropropagati
on. Rooting in vitro was unnecessary for ex vitro survival.